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  MEAN WELL LCM-40 series: 3-in-1 dimming constant-current LED driver - LCM-40

  MEAN WELL LCM-40 MEAN WELL LCM-40 is a 40 W-class multiple-stage constant-current LED driver with 3-in-1 dimming. 42 W catalog rating; each setting must also remain within its LED-voltage window. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-40 Datasheet (PDF)Download MEAN WELL LCM-40/60 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-40; multiple-stage constant-current AC/DC LED driver. Standard model with 3-in-1 dim-to-off control. Rated output power 42 W catalog rating; each setting must also remain within its LED-voltage window. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current; measured at 60–100% of maximum output voltage under rated power delivery. Current tolerance: ±5%. Typical efficiency 91%, measured at 500 mA / 80 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 80°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. Auxiliary DC output Nominal 12 V, deviation 11.4–12.6 V, at 50 mA; +FAN/−FAN terminals can supply an external fan. DIP current settings Parameter Specification 350 mA 2–100 VDC; maximum open-circuit voltage 110 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 2–80 VDC; maximum open-circuit voltage 110 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 2–67 VDC; maximum open-circuit voltage 110 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 2–57 VDC; maximum open-circuit voltage 65 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 2–45 VDC; maximum open-circuit voltage 65 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 2–40 VDC; maximum open-circuit voltage 65 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Dimming inputs Use 0–10 VDC, 10 V PWM at 100 Hz–3 kHz, or resistance between DIM+ and DIM−. Dimming source current: 100 μA typical. Connect directly to LEDs, not to additional drivers. Never connect DIM− to −V. Dimming range Minimum dimming level about 6%; output is undefined between 0% and 6%. Output can reach 0% with approximately 0 kΩ, 0 VDC, or 0% PWM duty. Resistance full scale is 100 kΩ/N, where N is the number of drivers in synchronized dimming. Do not activate temperature compensation during dimming. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. External NTC compensation Connect a temperature-sensing NTC resistor across +NTC / −NTC at the LED or surrounding sensing point. With no NTC, normal operation follows the DIP-selected current. Reference resistances: 220 kΩ holds 100% below 60°C and reduces current above 60°C; 330 kΩ uses 70°C; 470 kΩ uses 80°C. Follow the respective continuous derating curves. NTC compatibility and control limits Reference measurements use THINKING TTC03 series; MEAN WELL does not supply the NTC resistor. Check the temperature curve before substituting another make. Dimming and synchronization are invalid while temperature compensation is in use. Input and protection Parameter Specification Input supply 180–295 VAC; 254–417 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.975 at 230 VAC; ≥0.96 at 277 VAC, full load. THD <20% at load ≥75%. Typical AC current 0.23 A / 230 VAC; 0.2 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <1 W measured at 180–230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; reapply power to recover. Overvoltage protection 110–130 V; output shuts down; reapply power to recover. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +90°C; maximum case temperature +90°C. Horizontal mounting ambient curve: 1050 mA: ambient limit 40°C at full load; the graph ends there for these settings. Other listed settings: full load through 50°C, then derate to 60% at 60°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 295 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–40°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2397.0 / 260.6 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750; CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥40%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 123.5 × 81.5 × 23 mm; case LCM-60A; two Ø4.2 mm top mounting positions, 110 × 68 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 240 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 40 mm from the right edge and 15 mm from the adjacent horizontal edge shown in the drawing. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N. TB5: pin 1 +V, pin 2 −V. TB3: pin 1 +FAN, pin 2 −FAN, pin 3 +NTC, pin 4 −NTC, pin 5 DIM+, pin 6 DIM−. Synchronization connector CN101/CN100: pins 1/3 +, pins 2/4 −; JST B2B-XH or equivalent, mating housing JST XHP or equivalent, terminal JST SXH-001T-P0.6 or equivalent. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the model’s actual small screw terminals: stranded 0.129–0.326 mm² (22–26 AWG), or solid diameter 0.404–0.643 mm; strip 7 mm; use a 3 mm Phillips screwdriver; recommended torque 2.88 kgf·cm. For the AC and LED-output push terminals: stranded 0.823–2.08 mm² (14–18 AWG), or solid diameter 1.024–1.628 mm; strip 10 mm; suggested push-down force 3–4 kp. Apply only to the populated terminals in the exact model drawing. Terminal cover Blue cover: 6 mm Phillips screwdriver; recommended torque 4.6 kgf·cm. The cover torque is not a push-terminal torque. Catalog reference: LCM-40, 2026-02-09; combined PDF pages 25–32. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-40 series: 3-in-1 dimming constant-current LED driver - LCM-40

  MEAN WELL LCM-40 MEAN WELL LCM-40 is a 40 W-class multiple-stage constant-current LED driver with 3-in-1 dimming. 42 W catalog rating; each setting must also remain within its LED-voltage window. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-40 Datasheet (PDF)Download MEAN WELL LCM-40/60 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-40; multiple-stage constant-current AC/DC LED driver. Standard model with 3-in-1 dim-to-off control. Rated output power 42 W catalog rating; each setting must also remain within its LED-voltage window. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current; measured at 60–100% of maximum output voltage under rated power delivery. Current tolerance: ±5%. Typical efficiency 91%, measured at 500 mA / 80 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 80°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. Auxiliary DC output Nominal 12 V, deviation 11.4–12.6 V, at 50 mA; +FAN/−FAN terminals can supply an external fan. DIP current settings Parameter Specification 350 mA 2–100 VDC; maximum open-circuit voltage 110 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 2–80 VDC; maximum open-circuit voltage 110 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 2–67 VDC; maximum open-circuit voltage 110 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 2–57 VDC; maximum open-circuit voltage 65 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 2–45 VDC; maximum open-circuit voltage 65 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 2–40 VDC; maximum open-circuit voltage 65 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Dimming inputs Use 0–10 VDC, 10 V PWM at 100 Hz–3 kHz, or resistance between DIM+ and DIM−. Dimming source current: 100 μA typical. Connect directly to LEDs, not to additional drivers. Never connect DIM− to −V. Dimming range Minimum dimming level about 6%; output is undefined between 0% and 6%. Output can reach 0% with approximately 0 kΩ, 0 VDC, or 0% PWM duty. Resistance full scale is 100 kΩ/N, where N is the number of drivers in synchronized dimming. Do not activate temperature compensation during dimming. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. External NTC compensation Connect a temperature-sensing NTC resistor across +NTC / −NTC at the LED or surrounding sensing point. With no NTC, normal operation follows the DIP-selected current. Reference resistances: 220 kΩ holds 100% below 60°C and reduces current above 60°C; 330 kΩ uses 70°C; 470 kΩ uses 80°C. Follow the respective continuous derating curves. NTC compatibility and control limits Reference measurements use THINKING TTC03 series; MEAN WELL does not supply the NTC resistor. Check the temperature curve before substituting another make. Dimming and synchronization are invalid while temperature compensation is in use. Input and protection Parameter Specification Input supply 180–295 VAC; 254–417 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.975 at 230 VAC; ≥0.96 at 277 VAC, full load. THD <20% at load ≥75%. Typical AC current 0.23 A / 230 VAC; 0.2 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <1 W measured at 180–230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; reapply power to recover. Overvoltage protection 110–130 V; output shuts down; reapply power to recover. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +90°C; maximum case temperature +90°C. Horizontal mounting ambient curve: 1050 mA: ambient limit 40°C at full load; the graph ends there for these settings. Other listed settings: full load through 50°C, then derate to 60% at 60°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 295 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–40°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2397.0 / 260.6 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750; CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥40%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 123.5 × 81.5 × 23 mm; case LCM-60A; two Ø4.2 mm top mounting positions, 110 × 68 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 240 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 40 mm from the right edge and 15 mm from the adjacent horizontal edge shown in the drawing. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N. TB5: pin 1 +V, pin 2 −V. TB3: pin 1 +FAN, pin 2 −FAN, pin 3 +NTC, pin 4 −NTC, pin 5 DIM+, pin 6 DIM−. Synchronization connector CN101/CN100: pins 1/3 +, pins 2/4 −; JST B2B-XH or equivalent, mating housing JST XHP or equivalent, terminal JST SXH-001T-P0.6 or equivalent. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the model’s actual small screw terminals: stranded 0.129–0.326 mm² (22–26 AWG), or solid diameter 0.404–0.643 mm; strip 7 mm; use a 3 mm Phillips screwdriver; recommended torque 2.88 kgf·cm. For the AC and LED-output push terminals: stranded 0.823–2.08 mm² (14–18 AWG), or solid diameter 1.024–1.628 mm; strip 10 mm; suggested push-down force 3–4 kp. Apply only to the populated terminals in the exact model drawing. Terminal cover Blue cover: 6 mm Phillips screwdriver; recommended torque 4.6 kgf·cm. The cover torque is not a push-terminal torque. Catalog reference: LCM-40, 2026-02-09; combined PDF pages 25–32. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25KN series: KNX constant-current LED driver - LCM-25KN

  MEAN WELL LCM-25KN MEAN WELL LCM-25KN is a 25 W-class multiple-stage constant-current LED driver with KNX. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting and industrial lighting. Download MEAN WELL LCM-25KN Datasheet (PDF)Download MEAN WELL LCM-25KN Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25KN; multiple-stage constant-current AC/DC LED driver. KN suffix identifies KNX/EIB control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 85%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. 450 mA (additional setting) Maximum LED voltage 54 V. DIP 1/2/3/4/5/6: OFF / ON / OFF / OFF / OFF / OFF. The connected LED voltage must be below this published maximum. 550 mA (additional setting) Maximum LED voltage 46 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. 800 mA (additional setting) Maximum LED voltage 31 V. DIP 1/2/3/4/5/6: ON / ON / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. Control and commissioning Parameter Specification KNX commissioning Connect the bus to KNX+ / KNX−; use the model-specific application database from the ETS online catalog or MEAN WELL product catalog. Direct KNX/EIB integration avoids a separate KNX–DALI gateway. KNX functions Configurable turn-on brightness, fade speeds and ON/OFF delays; switching telegram/status; relative dimming and brightness transition/value/status; PUSH dimming and blocking; lamp and AC/DC-input fault messages; bus-failure/recovery response; power-on level; linear/logarithmic curve; synchronous output; two blocking functions; multi-stage staircase switch-off and cyclic operating telegram. Scenes and monitoring 8 scenes recalled/saved using KNX 8-bit telegrams; operating-hours counter; constant-light-output compensation with 5 scheduled divisions; power-consumption feedback. PUSH mode Primary-side push button only between PUSH and AC/L; connecting it to AC/N causes a short circuit. Local PUSH control supports up to 10 drivers on a common button, with ≤20 m from button to last driver. When configured independently via ETS, grouping and driver count are set by the ETS project designer. Timing and behavior follow the application database. AC/DC input monitoring Alternative primary-side input-monitor configuration: link PUSH to AC/L (or backup DC+); AC/N is backup DC−. The KNX bus must be connected. Configure monitoring through the model database; follow the separate input-monitor wiring diagram. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on database settings. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 220–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: Settings other than 900 / 1050 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 1994.5 / 201.1 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; output–KN± 500 VDC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. KNX and emergency feature KNX certification is listed. The catalog identifies emergency-lighting support; configure the KNX AC/DC-input monitoring and confirm the applicable system arrangement in the dedicated manual. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 173 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH. TB2: pin 1 +V, pin 2 −V, pin 3 −SYN, pin 4 +SYN. TB4: pin 1 KNX−, pin 2 KNX+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Connection sequence Connect the LED lamps before applying AC power to avoid LED damage. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and bus requirement Use a normally open push button without an indicator light. The KNX bus must remain connected for PUSH dimming as well as AC/DC-input monitoring. Synchronization document difference The current 2026-02-09 catalog specifies synchronization over 10–100%; the older 2019-12-03 installation manual lists 6–100%. Use the current catalog range for selection and verify the actual hardware, database and system behavior before commissioning. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25KN, 2026-02-09; combined PDF pages 17–24. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25KN series: KNX constant-current LED driver - LCM-25KN

  MEAN WELL LCM-25KN MEAN WELL LCM-25KN is a 25 W-class multiple-stage constant-current LED driver with KNX. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting and industrial lighting. Download MEAN WELL LCM-25KN Datasheet (PDF)Download MEAN WELL LCM-25KN Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25KN; multiple-stage constant-current AC/DC LED driver. KN suffix identifies KNX/EIB control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 85%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. 450 mA (additional setting) Maximum LED voltage 54 V. DIP 1/2/3/4/5/6: OFF / ON / OFF / OFF / OFF / OFF. The connected LED voltage must be below this published maximum. 550 mA (additional setting) Maximum LED voltage 46 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. 800 mA (additional setting) Maximum LED voltage 31 V. DIP 1/2/3/4/5/6: ON / ON / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. Control and commissioning Parameter Specification KNX commissioning Connect the bus to KNX+ / KNX−; use the model-specific application database from the ETS online catalog or MEAN WELL product catalog. Direct KNX/EIB integration avoids a separate KNX–DALI gateway. KNX functions Configurable turn-on brightness, fade speeds and ON/OFF delays; switching telegram/status; relative dimming and brightness transition/value/status; PUSH dimming and blocking; lamp and AC/DC-input fault messages; bus-failure/recovery response; power-on level; linear/logarithmic curve; synchronous output; two blocking functions; multi-stage staircase switch-off and cyclic operating telegram. Scenes and monitoring 8 scenes recalled/saved using KNX 8-bit telegrams; operating-hours counter; constant-light-output compensation with 5 scheduled divisions; power-consumption feedback. PUSH mode Primary-side push button only between PUSH and AC/L; connecting it to AC/N causes a short circuit. Local PUSH control supports up to 10 drivers on a common button, with ≤20 m from button to last driver. When configured independently via ETS, grouping and driver count are set by the ETS project designer. Timing and behavior follow the application database. AC/DC input monitoring Alternative primary-side input-monitor configuration: link PUSH to AC/L (or backup DC+); AC/N is backup DC−. The KNX bus must be connected. Configure monitoring through the model database; follow the separate input-monitor wiring diagram. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on database settings. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 220–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: Settings other than 900 / 1050 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 1994.5 / 201.1 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; output–KN± 500 VDC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. KNX and emergency feature KNX certification is listed. The catalog identifies emergency-lighting support; configure the KNX AC/DC-input monitoring and confirm the applicable system arrangement in the dedicated manual. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 173 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH. TB2: pin 1 +V, pin 2 −V, pin 3 −SYN, pin 4 +SYN. TB4: pin 1 KNX−, pin 2 KNX+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Connection sequence Connect the LED lamps before applying AC power to avoid LED damage. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and bus requirement Use a normally open push button without an indicator light. The KNX bus must remain connected for PUSH dimming as well as AC/DC-input monitoring. Synchronization document difference The current 2026-02-09 catalog specifies synchronization over 10–100%; the older 2019-12-03 installation manual lists 6–100%. Use the current catalog range for selection and verify the actual hardware, database and system behavior before commissioning. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25KN, 2026-02-09; combined PDF pages 17–24. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25KN series: KNX constant-current LED driver - LCM-25KN

  MEAN WELL LCM-25KN MEAN WELL LCM-25KN is a 25 W-class multiple-stage constant-current LED driver with KNX. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting and industrial lighting. Download MEAN WELL LCM-25KN Datasheet (PDF)Download MEAN WELL LCM-25KN Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25KN; multiple-stage constant-current AC/DC LED driver. KN suffix identifies KNX/EIB control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 85%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. 450 mA (additional setting) Maximum LED voltage 54 V. DIP 1/2/3/4/5/6: OFF / ON / OFF / OFF / OFF / OFF. The connected LED voltage must be below this published maximum. 550 mA (additional setting) Maximum LED voltage 46 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. 800 mA (additional setting) Maximum LED voltage 31 V. DIP 1/2/3/4/5/6: ON / ON / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. Control and commissioning Parameter Specification KNX commissioning Connect the bus to KNX+ / KNX−; use the model-specific application database from the ETS online catalog or MEAN WELL product catalog. Direct KNX/EIB integration avoids a separate KNX–DALI gateway. KNX functions Configurable turn-on brightness, fade speeds and ON/OFF delays; switching telegram/status; relative dimming and brightness transition/value/status; PUSH dimming and blocking; lamp and AC/DC-input fault messages; bus-failure/recovery response; power-on level; linear/logarithmic curve; synchronous output; two blocking functions; multi-stage staircase switch-off and cyclic operating telegram. Scenes and monitoring 8 scenes recalled/saved using KNX 8-bit telegrams; operating-hours counter; constant-light-output compensation with 5 scheduled divisions; power-consumption feedback. PUSH mode Primary-side push button only between PUSH and AC/L; connecting it to AC/N causes a short circuit. Local PUSH control supports up to 10 drivers on a common button, with ≤20 m from button to last driver. When configured independently via ETS, grouping and driver count are set by the ETS project designer. Timing and behavior follow the application database. AC/DC input monitoring Alternative primary-side input-monitor configuration: link PUSH to AC/L (or backup DC+); AC/N is backup DC−. The KNX bus must be connected. Configure monitoring through the model database; follow the separate input-monitor wiring diagram. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on database settings. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 220–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: Settings other than 900 / 1050 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 1994.5 / 201.1 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; output–KN± 500 VDC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. KNX and emergency feature KNX certification is listed. The catalog identifies emergency-lighting support; configure the KNX AC/DC-input monitoring and confirm the applicable system arrangement in the dedicated manual. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 173 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH. TB2: pin 1 +V, pin 2 −V, pin 3 −SYN, pin 4 +SYN. TB4: pin 1 KNX−, pin 2 KNX+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Connection sequence Connect the LED lamps before applying AC power to avoid LED damage. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and bus requirement Use a normally open push button without an indicator light. The KNX bus must remain connected for PUSH dimming as well as AC/DC-input monitoring. Synchronization document difference The current 2026-02-09 catalog specifies synchronization over 10–100%; the older 2019-12-03 installation manual lists 6–100%. Use the current catalog range for selection and verify the actual hardware, database and system behavior before commissioning. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25KN, 2026-02-09; combined PDF pages 17–24. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25KN series: KNX constant-current LED driver - LCM-25KN

  MEAN WELL LCM-25KN MEAN WELL LCM-25KN is a 25 W-class multiple-stage constant-current LED driver with KNX. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting and industrial lighting. Download MEAN WELL LCM-25KN Datasheet (PDF)Download MEAN WELL LCM-25KN Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25KN; multiple-stage constant-current AC/DC LED driver. KN suffix identifies KNX/EIB control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 85%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. 450 mA (additional setting) Maximum LED voltage 54 V. DIP 1/2/3/4/5/6: OFF / ON / OFF / OFF / OFF / OFF. The connected LED voltage must be below this published maximum. 550 mA (additional setting) Maximum LED voltage 46 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. 800 mA (additional setting) Maximum LED voltage 31 V. DIP 1/2/3/4/5/6: ON / ON / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. Control and commissioning Parameter Specification KNX commissioning Connect the bus to KNX+ / KNX−; use the model-specific application database from the ETS online catalog or MEAN WELL product catalog. Direct KNX/EIB integration avoids a separate KNX–DALI gateway. KNX functions Configurable turn-on brightness, fade speeds and ON/OFF delays; switching telegram/status; relative dimming and brightness transition/value/status; PUSH dimming and blocking; lamp and AC/DC-input fault messages; bus-failure/recovery response; power-on level; linear/logarithmic curve; synchronous output; two blocking functions; multi-stage staircase switch-off and cyclic operating telegram. Scenes and monitoring 8 scenes recalled/saved using KNX 8-bit telegrams; operating-hours counter; constant-light-output compensation with 5 scheduled divisions; power-consumption feedback. PUSH mode Primary-side push button only between PUSH and AC/L; connecting it to AC/N causes a short circuit. Local PUSH control supports up to 10 drivers on a common button, with ≤20 m from button to last driver. When configured independently via ETS, grouping and driver count are set by the ETS project designer. Timing and behavior follow the application database. AC/DC input monitoring Alternative primary-side input-monitor configuration: link PUSH to AC/L (or backup DC+); AC/N is backup DC−. The KNX bus must be connected. Configure monitoring through the model database; follow the separate input-monitor wiring diagram. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on database settings. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 220–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: Settings other than 900 / 1050 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 1994.5 / 201.1 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; output–KN± 500 VDC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. KNX and emergency feature KNX certification is listed. The catalog identifies emergency-lighting support; configure the KNX AC/DC-input monitoring and confirm the applicable system arrangement in the dedicated manual. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 173 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH. TB2: pin 1 +V, pin 2 −V, pin 3 −SYN, pin 4 +SYN. TB4: pin 1 KNX−, pin 2 KNX+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Connection sequence Connect the LED lamps before applying AC power to avoid LED damage. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and bus requirement Use a normally open push button without an indicator light. The KNX bus must remain connected for PUSH dimming as well as AC/DC-input monitoring. Synchronization document difference The current 2026-02-09 catalog specifies synchronization over 10–100%; the older 2019-12-03 installation manual lists 6–100%. Use the current catalog range for selection and verify the actual hardware, database and system behavior before commissioning. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25KN, 2026-02-09; combined PDF pages 17–24. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25KN series: KNX constant-current LED driver - LCM-25KN

  MEAN WELL LCM-25KN MEAN WELL LCM-25KN is a 25 W-class multiple-stage constant-current LED driver with KNX. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting and industrial lighting. Download MEAN WELL LCM-25KN Datasheet (PDF)Download MEAN WELL LCM-25KN Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25KN; multiple-stage constant-current AC/DC LED driver. KN suffix identifies KNX/EIB control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 85%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. 450 mA (additional setting) Maximum LED voltage 54 V. DIP 1/2/3/4/5/6: OFF / ON / OFF / OFF / OFF / OFF. The connected LED voltage must be below this published maximum. 550 mA (additional setting) Maximum LED voltage 46 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. 800 mA (additional setting) Maximum LED voltage 31 V. DIP 1/2/3/4/5/6: ON / ON / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. Control and commissioning Parameter Specification KNX commissioning Connect the bus to KNX+ / KNX−; use the model-specific application database from the ETS online catalog or MEAN WELL product catalog. Direct KNX/EIB integration avoids a separate KNX–DALI gateway. KNX functions Configurable turn-on brightness, fade speeds and ON/OFF delays; switching telegram/status; relative dimming and brightness transition/value/status; PUSH dimming and blocking; lamp and AC/DC-input fault messages; bus-failure/recovery response; power-on level; linear/logarithmic curve; synchronous output; two blocking functions; multi-stage staircase switch-off and cyclic operating telegram. Scenes and monitoring 8 scenes recalled/saved using KNX 8-bit telegrams; operating-hours counter; constant-light-output compensation with 5 scheduled divisions; power-consumption feedback. PUSH mode Primary-side push button only between PUSH and AC/L; connecting it to AC/N causes a short circuit. Local PUSH control supports up to 10 drivers on a common button, with ≤20 m from button to last driver. When configured independently via ETS, grouping and driver count are set by the ETS project designer. Timing and behavior follow the application database. AC/DC input monitoring Alternative primary-side input-monitor configuration: link PUSH to AC/L (or backup DC+); AC/N is backup DC−. The KNX bus must be connected. Configure monitoring through the model database; follow the separate input-monitor wiring diagram. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on database settings. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 220–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: Settings other than 900 / 1050 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 1994.5 / 201.1 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; output–KN± 500 VDC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. KNX and emergency feature KNX certification is listed. The catalog identifies emergency-lighting support; configure the KNX AC/DC-input monitoring and confirm the applicable system arrangement in the dedicated manual. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 173 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH. TB2: pin 1 +V, pin 2 −V, pin 3 −SYN, pin 4 +SYN. TB4: pin 1 KNX−, pin 2 KNX+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Connection sequence Connect the LED lamps before applying AC power to avoid LED damage. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and bus requirement Use a normally open push button without an indicator light. The KNX bus must remain connected for PUSH dimming as well as AC/DC-input monitoring. Synchronization document difference The current 2026-02-09 catalog specifies synchronization over 10–100%; the older 2019-12-03 installation manual lists 6–100%. Use the current catalog range for selection and verify the actual hardware, database and system behavior before commissioning. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25KN, 2026-02-09; combined PDF pages 17–24. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25KN series: KNX constant-current LED driver - LCM-25KN

  MEAN WELL LCM-25KN MEAN WELL LCM-25KN is a 25 W-class multiple-stage constant-current LED driver with KNX. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting and industrial lighting. Download MEAN WELL LCM-25KN Datasheet (PDF)Download MEAN WELL LCM-25KN Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25KN; multiple-stage constant-current AC/DC LED driver. KN suffix identifies KNX/EIB control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 85%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. 450 mA (additional setting) Maximum LED voltage 54 V. DIP 1/2/3/4/5/6: OFF / ON / OFF / OFF / OFF / OFF. The connected LED voltage must be below this published maximum. 550 mA (additional setting) Maximum LED voltage 46 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. 800 mA (additional setting) Maximum LED voltage 31 V. DIP 1/2/3/4/5/6: ON / ON / OFF / ON / OFF / OFF. The connected LED voltage must be below this published maximum. Control and commissioning Parameter Specification KNX commissioning Connect the bus to KNX+ / KNX−; use the model-specific application database from the ETS online catalog or MEAN WELL product catalog. Direct KNX/EIB integration avoids a separate KNX–DALI gateway. KNX functions Configurable turn-on brightness, fade speeds and ON/OFF delays; switching telegram/status; relative dimming and brightness transition/value/status; PUSH dimming and blocking; lamp and AC/DC-input fault messages; bus-failure/recovery response; power-on level; linear/logarithmic curve; synchronous output; two blocking functions; multi-stage staircase switch-off and cyclic operating telegram. Scenes and monitoring 8 scenes recalled/saved using KNX 8-bit telegrams; operating-hours counter; constant-light-output compensation with 5 scheduled divisions; power-consumption feedback. PUSH mode Primary-side push button only between PUSH and AC/L; connecting it to AC/N causes a short circuit. Local PUSH control supports up to 10 drivers on a common button, with ≤20 m from button to last driver. When configured independently via ETS, grouping and driver count are set by the ETS project designer. Timing and behavior follow the application database. AC/DC input monitoring Alternative primary-side input-monitor configuration: link PUSH to AC/L (or backup DC+); AC/N is backup DC−. The KNX bus must be connected. Configure monitoring through the model database; follow the separate input-monitor wiring diagram. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on database settings. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 220–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: Settings other than 900 / 1050 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 1994.5 / 201.1 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; output–KN± 500 VDC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. KNX and emergency feature KNX certification is listed. The catalog identifies emergency-lighting support; configure the KNX AC/DC-input monitoring and confirm the applicable system arrangement in the dedicated manual. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 173 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH. TB2: pin 1 +V, pin 2 −V, pin 3 −SYN, pin 4 +SYN. TB4: pin 1 KNX−, pin 2 KNX+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Connection sequence Connect the LED lamps before applying AC power to avoid LED damage. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and bus requirement Use a normally open push button without an indicator light. The KNX bus must remain connected for PUSH dimming as well as AC/DC-input monitoring. Synchronization document difference The current 2026-02-09 catalog specifies synchronization over 10–100%; the older 2019-12-03 installation manual lists 6–100%. Use the current catalog range for selection and verify the actual hardware, database and system behavior before commissioning. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25KN, 2026-02-09; combined PDF pages 17–24. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI-2 constant-current LED driver - LCM-25DA2

  MEAN WELL LCM-25DA2 MEAN WELL LCM-25DA2 is a 25 W-class multiple-stage constant-current LED driver with DALI-2. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA2; multiple-stage constant-current AC/DC LED driver. DA2 identifies DALI-2 control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. For this DA2 model, the specified startup uses a DALI controller supporting power-on functionality; otherwise it may exceed 0.5 s. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI-2 interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI-2 single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection For PUSH mode, wire AC/L through the push button to DA+ (TB1 pin 4), and DA− (pin 3) to AC/N. There is no dedicated PUSH terminal on DA2. Use the correct control mode and wiring diagram. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–375 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Emergency-lighting condition DA2 emergency-lighting EL / Appendix J application: AC 200–240 VAC. This special condition is distinct from the normal input range. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 DA−, pin 4 DA+. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI-2 constant-current LED driver - LCM-25DA2

  MEAN WELL LCM-25DA2 MEAN WELL LCM-25DA2 is a 25 W-class multiple-stage constant-current LED driver with DALI-2. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA2; multiple-stage constant-current AC/DC LED driver. DA2 identifies DALI-2 control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. For this DA2 model, the specified startup uses a DALI controller supporting power-on functionality; otherwise it may exceed 0.5 s. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI-2 interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI-2 single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection For PUSH mode, wire AC/L through the push button to DA+ (TB1 pin 4), and DA− (pin 3) to AC/N. There is no dedicated PUSH terminal on DA2. Use the correct control mode and wiring diagram. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–375 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Emergency-lighting condition DA2 emergency-lighting EL / Appendix J application: AC 200–240 VAC. This special condition is distinct from the normal input range. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 DA−, pin 4 DA+. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI-2 constant-current LED driver - LCM-25DA2

  MEAN WELL LCM-25DA2 MEAN WELL LCM-25DA2 is a 25 W-class multiple-stage constant-current LED driver with DALI-2. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA2; multiple-stage constant-current AC/DC LED driver. DA2 identifies DALI-2 control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. For this DA2 model, the specified startup uses a DALI controller supporting power-on functionality; otherwise it may exceed 0.5 s. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI-2 interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI-2 single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection For PUSH mode, wire AC/L through the push button to DA+ (TB1 pin 4), and DA− (pin 3) to AC/N. There is no dedicated PUSH terminal on DA2. Use the correct control mode and wiring diagram. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–375 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Emergency-lighting condition DA2 emergency-lighting EL / Appendix J application: AC 200–240 VAC. This special condition is distinct from the normal input range. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 DA−, pin 4 DA+. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI-2 constant-current LED driver - LCM-25DA2

  MEAN WELL LCM-25DA2 MEAN WELL LCM-25DA2 is a 25 W-class multiple-stage constant-current LED driver with DALI-2. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA2; multiple-stage constant-current AC/DC LED driver. DA2 identifies DALI-2 control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. For this DA2 model, the specified startup uses a DALI controller supporting power-on functionality; otherwise it may exceed 0.5 s. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI-2 interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI-2 single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection For PUSH mode, wire AC/L through the push button to DA+ (TB1 pin 4), and DA− (pin 3) to AC/N. There is no dedicated PUSH terminal on DA2. Use the correct control mode and wiring diagram. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–375 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Emergency-lighting condition DA2 emergency-lighting EL / Appendix J application: AC 200–240 VAC. This special condition is distinct from the normal input range. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 DA−, pin 4 DA+. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI-2 constant-current LED driver - LCM-25DA2

  MEAN WELL LCM-25DA2 MEAN WELL LCM-25DA2 is a 25 W-class multiple-stage constant-current LED driver with DALI-2. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA2; multiple-stage constant-current AC/DC LED driver. DA2 identifies DALI-2 control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. For this DA2 model, the specified startup uses a DALI controller supporting power-on functionality; otherwise it may exceed 0.5 s. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI-2 interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI-2 single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection For PUSH mode, wire AC/L through the push button to DA+ (TB1 pin 4), and DA− (pin 3) to AC/N. There is no dedicated PUSH terminal on DA2. Use the correct control mode and wiring diagram. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–375 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Emergency-lighting condition DA2 emergency-lighting EL / Appendix J application: AC 200–240 VAC. This special condition is distinct from the normal input range. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 DA−, pin 4 DA+. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI-2 constant-current LED driver - LCM-25DA2

  MEAN WELL LCM-25DA2 MEAN WELL LCM-25DA2 is a 25 W-class multiple-stage constant-current LED driver with DALI-2. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA2; multiple-stage constant-current AC/DC LED driver. DA2 identifies DALI-2 control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. For this DA2 model, the specified startup uses a DALI controller supporting power-on functionality; otherwise it may exceed 0.5 s. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI-2 interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI-2 single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection For PUSH mode, wire AC/L through the push button to DA+ (TB1 pin 4), and DA− (pin 3) to AC/N. There is no dedicated PUSH terminal on DA2. Use the correct control mode and wiring diagram. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–375 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Emergency-lighting condition DA2 emergency-lighting EL / Appendix J application: AC 200–240 VAC. This special condition is distinct from the normal input range. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 DA−, pin 4 DA+. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI constant-current LED driver - LCM-25DA

  MEAN WELL LCM-25DA MEAN WELL LCM-25DA is a 25 W-class multiple-stage constant-current LED driver with DALI. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA; multiple-stage constant-current AC/DC LED driver. DA identifies DALI control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection Connect the push button between PUSH (TB1 pin 3) and AC/L. Do not connect it to AC/N: this causes a short circuit. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH, pin 4 DA+, pin 5 DA−. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI constant-current LED driver - LCM-25DA

  MEAN WELL LCM-25DA MEAN WELL LCM-25DA is a 25 W-class multiple-stage constant-current LED driver with DALI. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA; multiple-stage constant-current AC/DC LED driver. DA identifies DALI control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection Connect the push button between PUSH (TB1 pin 3) and AC/L. Do not connect it to AC/N: this causes a short circuit. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH, pin 4 DA+, pin 5 DA−. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI constant-current LED driver - LCM-25DA

  MEAN WELL LCM-25DA MEAN WELL LCM-25DA is a 25 W-class multiple-stage constant-current LED driver with DALI. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA; multiple-stage constant-current AC/DC LED driver. DA identifies DALI control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection Connect the push button between PUSH (TB1 pin 3) and AC/L. Do not connect it to AC/N: this causes a short circuit. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH, pin 4 DA+, pin 5 DA−. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI constant-current LED driver - LCM-25DA

  MEAN WELL LCM-25DA MEAN WELL LCM-25DA is a 25 W-class multiple-stage constant-current LED driver with DALI. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA; multiple-stage constant-current AC/DC LED driver. DA identifies DALI control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection Connect the push button between PUSH (TB1 pin 3) and AC/L. Do not connect it to AC/N: this causes a short circuit. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH, pin 4 DA+, pin 5 DA−. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI constant-current LED driver - LCM-25DA

  MEAN WELL LCM-25DA MEAN WELL LCM-25DA is a 25 W-class multiple-stage constant-current LED driver with DALI. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA; multiple-stage constant-current AC/DC LED driver. DA identifies DALI control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection Connect the push button between PUSH (TB1 pin 3) and AC/L. Do not connect it to AC/N: this causes a short circuit. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH, pin 4 DA+, pin 5 DA−. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25DA series: DALI constant-current LED driver - LCM-25DA

  MEAN WELL LCM-25DA MEAN WELL LCM-25DA is a 25 W-class multiple-stage constant-current LED driver with DALI. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25DA Datasheet (PDF)Download MEAN WELL LCM-25DA/DA2 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25DA; multiple-stage constant-current AC/DC LED driver. DA identifies DALI control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Digital dimming DALI interface at DA+ / DA− on the primary side; 16 groups and 64 addresses. First dimming step: 6%. Logarithmic or linear dimming curve. DALI single-channel LED control; this is not the LCM-40TW tunable-white model. PUSH connection Connect the push button between PUSH (TB1 pin 3) and AC/L. Do not connect it to AC/N: this causes a short circuit. PUSH timing Short push 0.1–1 s: ON/OFF. Long push 1.5–10 s: brighten or dim, reversing direction on each long push. Reset >11 s: return to 100%. Inputs <0.05 s are ignored. Up to 10 drivers on one button; cable from button to last driver ≤20 m. Factory dimming setting: 100%. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–380 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 2661.8 / 213.3 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750 (except DA2); CSA C22.2 No.250.0-08; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885 (except DA2); EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC; input–DA and output–DA 1.5 kVAC each. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. DALI standards IEC62386-101, -102, -207 and -251 listed in this family catalog. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 170 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N, pin 3 PUSH, pin 4 DA+, pin 5 DA−. TB2: pin 1 +V, pin 2 −V. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. PUSH button and DALI cabling Use only a normally open push button without an indicator light, connected to the exact model’s designated PUSH or DA+/PUSH terminal and AC/L. Do not connect the push button to AC/N. For DALI mode, maximum bus-cable length 300 m using the manual’s stated 1.5 mm² or 14 AWG cable. Follow the DA/DA2 mode-specific wiring diagram. Catalog reference: LCM-25DA, 2026-02-09; combined PDF pages 9–16. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25 series: 3-in-1 dimming constant-current LED driver - LCM-25

  MEAN WELL LCM-25 MEAN WELL LCM-25 is a 25 W-class multiple-stage constant-current LED driver with 3-in-1 dimming. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25 Datasheet (PDF)Download MEAN WELL LCM-25 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25; multiple-stage constant-current AC/DC LED driver. Standard model with 3-in-1 dim-to-off control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Dimming inputs Use 0–10 VDC, 10 V PWM at 100 Hz–3 kHz, or resistance between DIM+ and DIM−. Dimming source current: 100 μA typical. Connect directly to LEDs, not to additional drivers. Never connect DIM− to −V. Dimming range Minimum dimming level about 6%; output is undefined between 0% and 6%. Output can reach 0% with approximately 0 kΩ, 0 VDC, or 0% PWM duty. Resistance full scale is 100 kΩ/N, where N is the number of drivers in synchronized dimming. Do not activate temperature compensation during dimming. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–392 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 3298.3 / 298.7 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750; CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 160 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N. TB2: pin 1 +V, pin 2 −V, pin 3 DIM−, pin 4 DIM+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25, 2026-02-09; combined PDF pages 1–8. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25 series: 3-in-1 dimming constant-current LED driver - LCM-25

  MEAN WELL LCM-25 MEAN WELL LCM-25 is a 25 W-class multiple-stage constant-current LED driver with 3-in-1 dimming. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25 Datasheet (PDF)Download MEAN WELL LCM-25 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25; multiple-stage constant-current AC/DC LED driver. Standard model with 3-in-1 dim-to-off control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Dimming inputs Use 0–10 VDC, 10 V PWM at 100 Hz–3 kHz, or resistance between DIM+ and DIM−. Dimming source current: 100 μA typical. Connect directly to LEDs, not to additional drivers. Never connect DIM− to −V. Dimming range Minimum dimming level about 6%; output is undefined between 0% and 6%. Output can reach 0% with approximately 0 kΩ, 0 VDC, or 0% PWM duty. Resistance full scale is 100 kΩ/N, where N is the number of drivers in synchronized dimming. Do not activate temperature compensation during dimming. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–392 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 3298.3 / 298.7 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750; CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 160 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N. TB2: pin 1 +V, pin 2 −V, pin 3 DIM−, pin 4 DIM+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25, 2026-02-09; combined PDF pages 1–8. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25 series: 3-in-1 dimming constant-current LED driver - LCM-25

  MEAN WELL LCM-25 MEAN WELL LCM-25 is a 25 W-class multiple-stage constant-current LED driver with 3-in-1 dimming. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25 Datasheet (PDF)Download MEAN WELL LCM-25 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25; multiple-stage constant-current AC/DC LED driver. Standard model with 3-in-1 dim-to-off control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Dimming inputs Use 0–10 VDC, 10 V PWM at 100 Hz–3 kHz, or resistance between DIM+ and DIM−. Dimming source current: 100 μA typical. Connect directly to LEDs, not to additional drivers. Never connect DIM− to −V. Dimming range Minimum dimming level about 6%; output is undefined between 0% and 6%. Output can reach 0% with approximately 0 kΩ, 0 VDC, or 0% PWM duty. Resistance full scale is 100 kΩ/N, where N is the number of drivers in synchronized dimming. Do not activate temperature compensation during dimming. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–392 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 3298.3 / 298.7 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750; CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 160 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N. TB2: pin 1 +V, pin 2 −V, pin 3 DIM−, pin 4 DIM+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25, 2026-02-09; combined PDF pages 1–8. Apply the exact model wiring, current, voltage and thermal limits together.

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  MEAN WELL LCM-25 series: 3-in-1 dimming constant-current LED driver - LCM-25

  MEAN WELL LCM-25 MEAN WELL LCM-25 is a 25 W-class multiple-stage constant-current LED driver with 3-in-1 dimming. 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Select the DIP current and matching LED voltage before use. Designed for indoor, office, architectural and panel lighting. Download MEAN WELL LCM-25 Datasheet (PDF)Download MEAN WELL LCM-25 Installation Manual Output and selection Parameter Specification Model and operating mode LCM-25; multiple-stage constant-current AC/DC LED driver. Standard model with 3-in-1 dim-to-off control. Rated output power 18.9 W at 350 mA; 25.2 W catalog rating at the other five main settings. Output current and voltage DIP-selected output, factory default 700 mA. Match the LED forward voltage to the selected row below; a power rating does not override its voltage limit. Current ripple and tolerance Ripple: 5% maximum at rated current. Current tolerance: ±5%. Typical efficiency 86%, measured at 500 mA / 50 V output selected by DIP. General test basis: 230 VAC, rated current, 25°C ambient; PF/THD/efficiency plots use Tcase 75°C. Startup time 500 ms at 230 VAC, first cold start; repeated ON/OFF may increase startup time. DIP current settings Parameter Specification 350 mA 6–54 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: OFF / OFF / OFF / OFF / OFF / OFF. 500 mA 6–50 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / OFF / OFF / OFF / OFF / OFF. 600 mA 6–42 VDC; maximum open-circuit voltage 59 V. DIP 1/2/3/4/5/6: ON / ON / OFF / OFF / OFF / OFF. 700 mA (default) 6–36 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / OFF / OFF / ON. 900 mA 6–28 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / OFF / ON. 1050 mA 6–24 VDC; maximum open-circuit voltage 41 V. DIP 1/2/3/4/5/6: ON / ON / ON / ON / ON / ON. Control and commissioning Parameter Specification Dimming inputs Use 0–10 VDC, 10 V PWM at 100 Hz–3 kHz, or resistance between DIM+ and DIM−. Dimming source current: 100 μA typical. Connect directly to LEDs, not to additional drivers. Never connect DIM− to −V. Dimming range Minimum dimming level about 6%; output is undefined between 0% and 6%. Output can reach 0% with approximately 0 kΩ, 0 VDC, or 0% PWM duty. Resistance full scale is 100 kΩ/N, where N is the number of drivers in synchronized dimming. Do not activate temperature compensation during dimming. Synchronization Up to 10 drivers: 1 master + 9 slaves. Dimming operating range 10–100%; minimum also depends on the dimmer setting. Flat synchronization cable <5 m, 22–24 AWG (0.2–0.3 mm²). Set every unit to 100% dimming before connecting. Synchronization is a control connection, not parallel connection of LED power outputs. Input and protection Parameter Specification Input supply 180–277 VAC; 254–392 VDC; 47–63 Hz AC. Active PFC. Power factor and THD Typical PF ≥0.94 at 230 VAC; ≥0.91 at 277 VAC, full load. THD <20% at load ≥50% / 230 VAC or ≥75% / 277 VAC. Typical AC current 0.17 A / 230 VAC; 0.15 A / 277 VAC. Inrush and breaker reference Cold-start inrush: 20 A typical at 230 VAC; width 260 μs at 50% Ipeak, per NEMA 410. Catalog 16 A circuit-breaker loading at 230 VAC: 26 type B / 44 type C units. Confirm the actual installation and breaker. Leakage and standby Leakage <0.5 mA at 240 VAC. Standby <0.5 W measured at 230 VAC. Short circuit Constant-current limiting; automatically recovers after the fault is removed. Overtemperature Output shuts down; automatically recovers after temperature falls. Operating limits Parameter Specification Temperature and cooling Free-air convection. Tcase −30 to +85°C; maximum case temperature +85°C. Horizontal mounting ambient curve: 350–700 mA: full load through 50°C, then derate to 60% at 60°C; 900 mA: full load through 45°C, then to 60% at 55°C; 1050 mA: full load through 40°C, then to 60% at 50°C. Case and ambient temperatures are different limits. Input and altitude derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 200 VAC, remaining 100% through 277 VAC. Apply thermal limits concurrently. Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m for this fanless driver. Humidity, storage and coefficient Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration and MTBF Vibration 10–500 Hz, 2 G, 10 minutes/cycle, 60 minutes on each X/Y/Z axis. MTBF 3298.3 / 298.7 thousand hours minimum, Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively. Safety and installation conditions Parameter Specification Construction Plastic housing, Class II, no FG; SELV output. Safety approval scope UL8750; CSA C22.2 No.250.13-12; ENEC BS EN/EN61347-1 and -2-13; BS EN/EN62384 independent; GB/T19510.1 and GB/T19510.213; BIS IS15885; EAC TP TC 004, as listed in the catalog. Insulation Input–output withstand 3.75 kVAC. Input–output insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH. EMC BS EN/EN55015; BS EN/EN61000-3-2 Class C at load ≥50%; BS EN/EN61000-3-3; GB/T17743; GB17625.1; EAC TP TC 020. Immunity: BS EN/EN61000-4-2, -3, -4, -5, -6, -8, -11 and BS EN/EN61547, light-industry level, line-to-line surge 2 kV. Requalify EMC on the complete final installation. ErP installation condition The 2026-02-09 catalog states this driver must be installed behind a switch, without permanent connection to the mains, to fulfill the latest lighting-fixture ErP requirements. Manufacturer warranty 3 years, subject to the manufacturer’s applicable terms. Dimensions, connections and accessories Parameter Specification Dimensions and mounting 105 × 68 × 23 mm; case LCM-25; two Ø4.2 mm top mounting positions, 93 × 62 mm center spacing. L × W × H; drawing tolerance ±1 mm. Follow the full drawing; the two Ø4 mm side mounting details are separate. Catalog unit packing reference 160 g per unit, converted from the explicit single-unit PACKING value; not a measured net or parcel weight. Case temperature measuring point Bottom view: tc 35 mm from the right edge and 20 mm below the top edge. Measure this designated point in the final installation. Terminal assignments TB1: pin 1 AC/L, pin 2 AC/N. TB2: pin 1 +V, pin 2 −V, pin 3 DIM−, pin 4 DIM+. Catalog wiring sizes TB1: 0.5–2.5 mm² (14–20 AWG). TB2: 0.5–1.5 mm² (16–20 AWG). Synchronization connector CN100/CN101: pin 1 −, pin 2 +; JST B2B-PH-KL or equivalent, mating housing JST PHR-2 or equivalent, terminal JST SPH-002T-P0.5S or equivalent. The mechanical connector table specifies 24–26 AWG (0.126–0.205 mm²), whereas the synchronization section specifies 22–24 AWG (0.2–0.3 mm²) for the cable. Match both the connector and cable requirements; confirm the selected assembly. Installation and clearance Install indoors by a qualified electrician. Keep at least 50 mm of ventilation clearance around the driver. Follow the dedicated installation manual and the model-specific load and temperature derating limits. LED load connection Do not connect a DC/DC converter or constant-current driver between this driver and the LED load. The selected output voltage and total output power must remain within the rated limits. Ambient installation limit The dedicated installation manual limits ambient temperature to 60°C. This is separate from the case-temperature rating; also obey the current model-specific load derating curve. Wire preparation and tools For the actual TB2 output/control push terminals: stranded 0.5–1.5 mm² (16–20 AWG), or solid diameter 0.8–1.382 mm; strip 7 mm; use a 3 mm slotted screwdriver; suggested push-down force 1.5–2.4 kp. For the actual TB1 primary-side push terminals: stranded 0.5–2.5 mm² (14–20 AWG), or solid diameter 0.8–1.8 mm; strip 10 mm; use a 3 mm slotted screwdriver; suggested push-down force 3–4 kp. Apply only to the terminals shown for this exact model. Cable clamp Use a 6 mm Phillips screwdriver for the clamp connector; recommended tightening torque 4 kgf·cm. Do not apply this torque to spring push terminals. Breaker-document difference The current catalog lists 26 type-B16 / 44 type-C16 units at 230 VAC. The installation manual’s older ABB S201 calculation gives 32 B16 / 54 C16 (and 20 B10 / 34 C10). These are different reference tables; use the current catalog limit and verify the selected breaker and installation. Catalog reference: LCM-25, 2026-02-09; combined PDF pages 1–8. Apply the exact model wiring, current, voltage and thermal limits together.

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