MEAN WELL XLC-25-KN series: KNX constant-power LED driver - XLC-25-H-KNS

Description

MEAN WELL XLC-25-H-KNS

XLC-25-H-KNS is a 25 W multiple-stage constant-power LED driver with KNX interface with KNX Data Secure. Current is selectable from 0.3–1.05 A via ETS database, with a 300 mA factory default. Independent type with strain-relief caps (S). Applications include recessed, down, panel, commercial and decorative lighting.

Output specifications

Parameter Specification
Model and configuration XLC-25-H-KNS; Independent type with strain-relief caps (S).
Output mode H type: selectable constant-current operating points within a multiple-stage constant-power envelope.
Rated output power 25 W; apply input-voltage and thermal limits.
Output current 0.3–1.05 A selectable by ETS database; factory default 300 mA.
Constant-current region 9–54 V overall envelope; each current setting has its own recommended LED-string voltage window below.
Open-circuit voltage 60 V; output hiccups under no-load conditions.
Current ripple <4% at full load.
Current tolerance ±5%.
Typical efficiency 88%; measured at 500 mA / 50 V output set by ETS database.
Measurement basis Unless otherwise stated: 230 VAC input, rated current and 25°C ambient.

Output-current selection

Select the current using ETS database. Match the LED-string forward voltage to its listed window and the I–V envelope. Rounded table endpoints do not increase the 25 W rating. Set the current no higher than the LED module’s rated current.

Parameter Specification
300 mA (default) 9–54 V recommended LED window.
350 mA 9–54 V recommended LED window.
400 mA 9–54 V recommended LED window.
450 mA 9–50 V recommended LED window.
500 mA 9–50 V recommended LED window.
550 mA 9–45 V recommended LED window.
600 mA 9–42 V recommended LED window.
650 mA 9–38 V recommended LED window.
700 mA 9–36 V recommended LED window.
750 mA 9–33 V recommended LED window.
800 mA 9–31 V recommended LED window.
850 mA 9–29 V recommended LED window.
900 mA 9–28 V recommended LED window.
950 mA 9–26 V recommended LED window.
1000 mA 9–25 V recommended LED window.
1050 mA 9–24 V recommended LED window.

Control and commissioning

Parameter Specification
KNX dimming Built-in KNX interface, KNX certified and supporting KNX Data Secure. Minimum dimming level 0.5%, up to 100%, with OFF (0%) control; logarithmic or linear curve selection.
ETS commissioning Use the matching application database from ETS Online Catalogs or the MEAN WELL product catalog. Connect the bus interface, energize the supply and KNX bus, press the programming button, load the physical address (programming LED goes out on completion), then load the application/parameters and test the functions.
Configured functions Normal dimmer or staircase light; switching, relative/absolute dimming, on/off and dimming-value reports, lamp-failure reporting, lock functions, scenes 1–32 with scene learning, automatic functions 1–4, and adjustable bus-power-up behavior.
CLO and monitoring Constant Light Output compensates LED lumen depreciation by programmed current adjustment over operating time. The manual provides five scheduled CLO divisions with configurable factors; configure the luminaire accordingly. Operating-hour counting, lifetime pre-warning, voltage/current/power and energy feedback, cyclic temperature reports, adjustable temperature alarms, timed gradient dimming and lux-based characteristic correction are available.
PUSH and AC-monitor selection Configure the PUSH port for push dimming or AC input monitoring in ETS. Both require the KNX bus to be connected. For PUSH, connect the mechanical retractive button only between PUSH and AC/L; connection to AC/N causes a short circuit. Use the separate manual wiring diagram for AC/DC monitoring.
PUSH wiring limits Maximum cable length between the button and driver: 20 m. Local PUSH configuration supports up to 10 drivers on one common button. Separately configured ETS groups depend on group addresses and the project designer.
PUSH operation Short/long press actions and dimming direction are configurable in ETS; long-operation threshold defaults to 1 s and is selectable from 0.5 to 10 s. Enable local driver control if its output should follow PUSH signals; otherwise the port can send KNX switching signals for other devices. Staircase mode allows on/off only at this port.
KNX bus layout Manual design limits: 256 bus devices; 350 m from bus power supply to the furthest device; 700 m between two bus devices; 1000 m total bus line across all segments. These are bus-topology limits, not the one-button driver allowance.
Factory reset The dedicated KNX manual describes restoring factory settings by holding the programming button for more than 10 seconds. Recommission and verify the intended parameters afterward.

Input and protection

Parameter Specification
AC and DC input 100–305 VAC; 141–400 VDC. Frequency 47–63 Hz. Confirm the applicable DC wiring before connection.
Power factor Active PFC. At full load: ≥0.97 / 115 VAC; ≥0.95 / 230 VAC; ≥0.92 / 277 VAC.
Total harmonic distortion <10% at load ≥50% / 230 VAC or ≥75% / 277 VAC; <15% at load ≥50% / 115 VAC.
AC input current 0.35 A / 115 VAC; 0.18 A / 230 VAC; 0.15 A / 277 VAC.
Cold-start inrush 10 A typical, width 100 μs measured at 50% Ipeak, 230 VAC; per NEMA 410.
16 A circuit breaker loading 71 / 71 units on type B / type C respectively at 230 VAC, under catalog reference conditions. Verify the actual breaker and installation.
Leakage and standby Leakage <0.75 mA at 277 VAC. Standby <0.5 W with dimming OFF, measured at 230 VAC.
Setup and rise time 500 ms setup / 100 ms rise at 230 VAC; 1000 ms / 100 ms at 115 VAC. Setup is measured at the first cold start; turning the driver ON/OFF may increase setup time.
Short circuit Hiccup mode; automatically recovers after the fault is removed.
Overtemperature protection Stage 1 reduces loading to 75%; stage 2 reduces it to 50%. Automatically recovers after the fault is removed.

Thermal and environmental limits

Parameter Specification
Cooling and ambient limits Free-air convection. Published curves apply to horizontal mounting: 100% load from −25°C through +40°C ambient at 110 VAC, and through +50°C at 230 VAC. These curves end at the stated limits; no higher-temperature slope is specified.
Case temperature Tcase −25 to +85°C; maximum +85°C at the designated tc point. The case limit is distinct from ambient temperature.
Input/load derating At 60 Hz: 80% load at 100 VAC, rising to 100% at 110 VAC; 100% through 305 VAC. Apply input and thermal limits together.
Altitude derating For this fanless driver above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m.
Humidity and storage Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH.
Temperature coefficient ±0.03%/°C over 0–50°C.
Vibration 10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X/Y/Z axis.
Typical life >50,000 operating hours when the tc point is about 70°C or lower.
MTBF 3949.8 / 338.5 thousand hours minimum: Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively.

Safety and compliance conditions

Parameter Specification
Construction Plastic Class II housing with SELV output and active PFC.
Safety standards ENEC BS EN/EN61347-1 and BS EN/EN61347-2-13 (EL) Appendix J; BS EN/EN62384; GB/T19510.1 and GB/T19510.213; EAC TP TC 004, as listed in the safety approval row. AS/NZS61347-1 and -2-13 are design references.
Emergency-lighting condition EL / Appendix J emergency installation: 176–280 VDC input. This condition is distinct from the normal DC-input range.
RCM condition Voluntary RCM. The S independent control gear is Non-IC classified and is not suitable for residential installations.
Insulation Input–output withstand 3.75 kVAC; insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH.
EMC emissions BS EN/EN55015 (CISPR15), GB/T17743; BS EN/EN61000-3-2 and GB17625.1 Class C at load ≥50%; voltage flicker BS EN/EN61000-3-3.
EMC immunity BS EN/EN61547; EN61000-4-2: level 3 / 8 kV air and level 2 / 4 kV contact; -4-3, -4-4, -4-6 and -4-8: level 2; -4-5: level 3, 1 kV line-to-line; -4-11: 70% residual voltage for 10 periods and 0% for 0.5 periods.
Light flicker Catalog flicker-free / CE ErP design: PstLM ≤1 and SVM ≤0.4, measured at full load with LED modules.
Final equipment and warranty The final-equipment manufacturer must requalify EMC on the complete installation. Manufacturer warranty: 5 years under normal usage, subject to its terms; do not replace parts or modify the product.

Mechanical and installation details

Parameter Specification
Dimensions 147 × 40 × 32 mm (L × W × H), drawing tolerance ±1 mm.
Unit weight 160 g; individual-unit PACKING weight.
Mounting Case XLC-25-S; two Ø3.6 mm mounting holes, 99 mm longitudinal spacing. Follow the complete casing drawing.
Temperature measurement point 50.5 mm from the output-side body edge and 14.6 mm below the upper body edge. Measure at the marked tc point.
Terminal assignment TB1: pin 1 AC/N; pin 2 AC/L; pin 3 PUSH. TB2: pin 1 +V; pin 2 −V. TB3: pin 1 KNX+; pin 2 KNX−.
Catalog conductor preparation TB1: 0.75–1.5 mm²; TB2: 0.5–1.5 mm². Strip 8–9 mm. Values are from this model’s mechanical drawing.
Casing Independent type with strain-relief caps (S).
KNX bus conductor The 2025.03 manual specifies solid wire diameter Ø0.6–0.8 mm (20–22 AWG), stripping length 5 mm, for the KNX bus terminal.
Terminal-document difference The 2025-04-18 model catalog gives the TB1/TB2 values above. The earlier 2025.03 Ver 0 KNX manual instead lists stranded wire 0.823–2.08 mm² (14–18 AWG), stripping 10 mm, for AC/L, AC/N, PUSH and Vo±. Do not combine these into a wider allowed range; confirm the actual terminal/hardware and applicable instructions with MEAN WELL before wiring.
Optional equipment The catalog prints strain-relief cap reference 1**3XLC-SET: 1 bag / 50 pieces, 2 pieces per set. Confirm the complete order code and fit with MEAN WELL; do not expand the asterisks. The KNX manual uses the separately provided MEAN WELL KSI-01U USB interface as a commissioning example; it is not part of this driver.

Match the LED load, casing and terminal arrangement to this exact model; maintain the specified free-air-convection conditions and check the tc point in the completed installation. Follow the applicable manual for commissioning and any documented source differences.

Catalog reference: XLC-25-KN, combined PDF pages 1–8; 2025-04-18.

MEAN WELL XLC-25-KN series: KNX constant-power LED driver - XLC-25-H-KNS

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MEAN WELL XLC-25-H-KNS XLC-25-H-KNS is a 25 W multiple-stage constant-power LED driver with KNX interface with KNX Data Secure. Current... Read more

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    Description

    MEAN WELL XLC-25-H-KNS

    XLC-25-H-KNS is a 25 W multiple-stage constant-power LED driver with KNX interface with KNX Data Secure. Current is selectable from 0.3–1.05 A via ETS database, with a 300 mA factory default. Independent type with strain-relief caps (S). Applications include recessed, down, panel, commercial and decorative lighting.

    Output specifications

    Parameter Specification
    Model and configuration XLC-25-H-KNS; Independent type with strain-relief caps (S).
    Output mode H type: selectable constant-current operating points within a multiple-stage constant-power envelope.
    Rated output power 25 W; apply input-voltage and thermal limits.
    Output current 0.3–1.05 A selectable by ETS database; factory default 300 mA.
    Constant-current region 9–54 V overall envelope; each current setting has its own recommended LED-string voltage window below.
    Open-circuit voltage 60 V; output hiccups under no-load conditions.
    Current ripple <4% at full load.
    Current tolerance ±5%.
    Typical efficiency 88%; measured at 500 mA / 50 V output set by ETS database.
    Measurement basis Unless otherwise stated: 230 VAC input, rated current and 25°C ambient.

    Output-current selection

    Select the current using ETS database. Match the LED-string forward voltage to its listed window and the I–V envelope. Rounded table endpoints do not increase the 25 W rating. Set the current no higher than the LED module’s rated current.

    Parameter Specification
    300 mA (default) 9–54 V recommended LED window.
    350 mA 9–54 V recommended LED window.
    400 mA 9–54 V recommended LED window.
    450 mA 9–50 V recommended LED window.
    500 mA 9–50 V recommended LED window.
    550 mA 9–45 V recommended LED window.
    600 mA 9–42 V recommended LED window.
    650 mA 9–38 V recommended LED window.
    700 mA 9–36 V recommended LED window.
    750 mA 9–33 V recommended LED window.
    800 mA 9–31 V recommended LED window.
    850 mA 9–29 V recommended LED window.
    900 mA 9–28 V recommended LED window.
    950 mA 9–26 V recommended LED window.
    1000 mA 9–25 V recommended LED window.
    1050 mA 9–24 V recommended LED window.

    Control and commissioning

    Parameter Specification
    KNX dimming Built-in KNX interface, KNX certified and supporting KNX Data Secure. Minimum dimming level 0.5%, up to 100%, with OFF (0%) control; logarithmic or linear curve selection.
    ETS commissioning Use the matching application database from ETS Online Catalogs or the MEAN WELL product catalog. Connect the bus interface, energize the supply and KNX bus, press the programming button, load the physical address (programming LED goes out on completion), then load the application/parameters and test the functions.
    Configured functions Normal dimmer or staircase light; switching, relative/absolute dimming, on/off and dimming-value reports, lamp-failure reporting, lock functions, scenes 1–32 with scene learning, automatic functions 1–4, and adjustable bus-power-up behavior.
    CLO and monitoring Constant Light Output compensates LED lumen depreciation by programmed current adjustment over operating time. The manual provides five scheduled CLO divisions with configurable factors; configure the luminaire accordingly. Operating-hour counting, lifetime pre-warning, voltage/current/power and energy feedback, cyclic temperature reports, adjustable temperature alarms, timed gradient dimming and lux-based characteristic correction are available.
    PUSH and AC-monitor selection Configure the PUSH port for push dimming or AC input monitoring in ETS. Both require the KNX bus to be connected. For PUSH, connect the mechanical retractive button only between PUSH and AC/L; connection to AC/N causes a short circuit. Use the separate manual wiring diagram for AC/DC monitoring.
    PUSH wiring limits Maximum cable length between the button and driver: 20 m. Local PUSH configuration supports up to 10 drivers on one common button. Separately configured ETS groups depend on group addresses and the project designer.
    PUSH operation Short/long press actions and dimming direction are configurable in ETS; long-operation threshold defaults to 1 s and is selectable from 0.5 to 10 s. Enable local driver control if its output should follow PUSH signals; otherwise the port can send KNX switching signals for other devices. Staircase mode allows on/off only at this port.
    KNX bus layout Manual design limits: 256 bus devices; 350 m from bus power supply to the furthest device; 700 m between two bus devices; 1000 m total bus line across all segments. These are bus-topology limits, not the one-button driver allowance.
    Factory reset The dedicated KNX manual describes restoring factory settings by holding the programming button for more than 10 seconds. Recommission and verify the intended parameters afterward.

    Input and protection

    Parameter Specification
    AC and DC input 100–305 VAC; 141–400 VDC. Frequency 47–63 Hz. Confirm the applicable DC wiring before connection.
    Power factor Active PFC. At full load: ≥0.97 / 115 VAC; ≥0.95 / 230 VAC; ≥0.92 / 277 VAC.
    Total harmonic distortion <10% at load ≥50% / 230 VAC or ≥75% / 277 VAC; <15% at load ≥50% / 115 VAC.
    AC input current 0.35 A / 115 VAC; 0.18 A / 230 VAC; 0.15 A / 277 VAC.
    Cold-start inrush 10 A typical, width 100 μs measured at 50% Ipeak, 230 VAC; per NEMA 410.
    16 A circuit breaker loading 71 / 71 units on type B / type C respectively at 230 VAC, under catalog reference conditions. Verify the actual breaker and installation.
    Leakage and standby Leakage <0.75 mA at 277 VAC. Standby <0.5 W with dimming OFF, measured at 230 VAC.
    Setup and rise time 500 ms setup / 100 ms rise at 230 VAC; 1000 ms / 100 ms at 115 VAC. Setup is measured at the first cold start; turning the driver ON/OFF may increase setup time.
    Short circuit Hiccup mode; automatically recovers after the fault is removed.
    Overtemperature protection Stage 1 reduces loading to 75%; stage 2 reduces it to 50%. Automatically recovers after the fault is removed.

    Thermal and environmental limits

    Parameter Specification
    Cooling and ambient limits Free-air convection. Published curves apply to horizontal mounting: 100% load from −25°C through +40°C ambient at 110 VAC, and through +50°C at 230 VAC. These curves end at the stated limits; no higher-temperature slope is specified.
    Case temperature Tcase −25 to +85°C; maximum +85°C at the designated tc point. The case limit is distinct from ambient temperature.
    Input/load derating At 60 Hz: 80% load at 100 VAC, rising to 100% at 110 VAC; 100% through 305 VAC. Apply input and thermal limits together.
    Altitude derating For this fanless driver above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m.
    Humidity and storage Operating: 20–90% RH, non-condensing. Storage: −40 to +80°C, 10–95% RH.
    Temperature coefficient ±0.03%/°C over 0–50°C.
    Vibration 10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X/Y/Z axis.
    Typical life >50,000 operating hours when the tc point is about 70°C or lower.
    MTBF 3949.8 / 338.5 thousand hours minimum: Telcordia SR-332 / MIL-HDBK-217F at 25°C, respectively.

    Safety and compliance conditions

    Parameter Specification
    Construction Plastic Class II housing with SELV output and active PFC.
    Safety standards ENEC BS EN/EN61347-1 and BS EN/EN61347-2-13 (EL) Appendix J; BS EN/EN62384; GB/T19510.1 and GB/T19510.213; EAC TP TC 004, as listed in the safety approval row. AS/NZS61347-1 and -2-13 are design references.
    Emergency-lighting condition EL / Appendix J emergency installation: 176–280 VDC input. This condition is distinct from the normal DC-input range.
    RCM condition Voluntary RCM. The S independent control gear is Non-IC classified and is not suitable for residential installations.
    Insulation Input–output withstand 3.75 kVAC; insulation resistance >100 MΩ at 500 VDC, 25°C and 70% RH.
    EMC emissions BS EN/EN55015 (CISPR15), GB/T17743; BS EN/EN61000-3-2 and GB17625.1 Class C at load ≥50%; voltage flicker BS EN/EN61000-3-3.
    EMC immunity BS EN/EN61547; EN61000-4-2: level 3 / 8 kV air and level 2 / 4 kV contact; -4-3, -4-4, -4-6 and -4-8: level 2; -4-5: level 3, 1 kV line-to-line; -4-11: 70% residual voltage for 10 periods and 0% for 0.5 periods.
    Light flicker Catalog flicker-free / CE ErP design: PstLM ≤1 and SVM ≤0.4, measured at full load with LED modules.
    Final equipment and warranty The final-equipment manufacturer must requalify EMC on the complete installation. Manufacturer warranty: 5 years under normal usage, subject to its terms; do not replace parts or modify the product.

    Mechanical and installation details

    Parameter Specification
    Dimensions 147 × 40 × 32 mm (L × W × H), drawing tolerance ±1 mm.
    Unit weight 160 g; individual-unit PACKING weight.
    Mounting Case XLC-25-S; two Ø3.6 mm mounting holes, 99 mm longitudinal spacing. Follow the complete casing drawing.
    Temperature measurement point 50.5 mm from the output-side body edge and 14.6 mm below the upper body edge. Measure at the marked tc point.
    Terminal assignment TB1: pin 1 AC/N; pin 2 AC/L; pin 3 PUSH. TB2: pin 1 +V; pin 2 −V. TB3: pin 1 KNX+; pin 2 KNX−.
    Catalog conductor preparation TB1: 0.75–1.5 mm²; TB2: 0.5–1.5 mm². Strip 8–9 mm. Values are from this model’s mechanical drawing.
    Casing Independent type with strain-relief caps (S).
    KNX bus conductor The 2025.03 manual specifies solid wire diameter Ø0.6–0.8 mm (20–22 AWG), stripping length 5 mm, for the KNX bus terminal.
    Terminal-document difference The 2025-04-18 model catalog gives the TB1/TB2 values above. The earlier 2025.03 Ver 0 KNX manual instead lists stranded wire 0.823–2.08 mm² (14–18 AWG), stripping 10 mm, for AC/L, AC/N, PUSH and Vo±. Do not combine these into a wider allowed range; confirm the actual terminal/hardware and applicable instructions with MEAN WELL before wiring.
    Optional equipment The catalog prints strain-relief cap reference 1**3XLC-SET: 1 bag / 50 pieces, 2 pieces per set. Confirm the complete order code and fit with MEAN WELL; do not expand the asterisks. The KNX manual uses the separately provided MEAN WELL KSI-01U USB interface as a commissioning example; it is not part of this driver.

    Match the LED load, casing and terminal arrangement to this exact model; maintain the specified free-air-convection conditions and check the tc point in the completed installation. Follow the applicable manual for commissioning and any documented source differences.

    Catalog reference: XLC-25-KN, combined PDF pages 1–8; 2025-04-18.

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