MEAN WELL SDR-960-48 is a convection-cooled industrial DIN rail power supply rated at 48 V DC, 20 A and 960 W. It includes active PFC, adjustable output, a DC OK relay and current sharing. Its 130% peak capability is limited to 3 seconds; average output power must remain within 960 W and all input-voltage and temperature limits apply. Product Datasheet Download MEAN WELL SDR-960 Datasheet (PDF) The SDR-960 section is on PDF pages 16, 17, 18. Refer to the complete mechanical drawings and notes when planning installation. Model Identification Complete model SDR-960-48 SDR-960 family 960 W single-output family with built-in current sharing. 48 output code 48 V nominal DC output. Construction Active PFC, free-air convection, constant-current limiting, adjustable DC output and DC OK indication/contact. No fan is required by the stated cooling method. DC Output Nominal output 48 V DC; 20 A rated, current range 0–20 A; 960 W rated power. Peak output 26 A / 1248 W (130% of rated power), for no more than 3 seconds; average output power must not exceed 960 W. Output-voltage adjustment 48–55 V DC using +V ADJ. Stay within rated current and power when adjusting. Ripple and noise, maximum 250 mVp-p. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%. Efficiency, typical 94% under the stated catalogue reference conditions. Ripple and noise are measured with 20 MHz bandwidth and a 12-inch twisted pair terminated with 0.1 µF and 47 µF parallel capacitors. Input and Starting AC input 180–264 VAC; this is not a 115 VAC input model. DC input 254–370 VDC. Frequency 47–63 Hz. Power factor, typical PF ≥0.95 at 230 VAC, at full load. AC input current, typical 6 A at 230 VAC. Cold-start inrush, typical 50 A at 230 VAC. Setup / rise time 1000 / 100 ms at 230 VAC, at full load. Hold-up time, typical 14 ms at 230 VAC, at full load. Leakage current Less than 3.5 mA at 240 VAC. Protection and DC OK Relay Short circuit / overload At 105–130% of rated output power, the specification describes operation for more than 3 seconds followed by output shutdown; automatic recovery occurs after 30 seconds if the peak-load condition has been removed. At 130–150%, constant-current limiting operates for more than 3 seconds before shutdown; re-power to recover. Overvoltage 56–65 V; output shutdown with automatic recovery or re-power to recover. Overtemperature Output shutdown; automatic recovery after temperature falls. DC OK closed / open Closed: PSU on / DC OK. Open: PSU off / DC fail. Relay contact limits Resistive load: 60 VDC / 0.3 A, 30 VDC / 1 A or 30 VAC / 0.5 A. Use these voltage/current combinations; the function table also identifies the 30 V / 1 A resistive reference. The overload response is protective behavior, not permission to extend the 3-second peak limit. The relay is a contact output; no numeric DC OK trip threshold or logic-output voltage is specified here. Peak Loading and Derating Repeated peak loading Limit each peak to 3 seconds and keep the complete-cycle average at or below 960 W. No universal fixed duty-cycle percentage is specified; the permitted duty depends on the intervening load and all derating limits. Lower-baseline waveform example The second catalogue waveform shows 480 W for 15 seconds and 1248 W for 3 seconds. Apply the separate average-power limit; this example does not authorize a longer peak. Vertical continuous-load curve 100% from -30°C to 50°C, then reduce along the plotted line to 60% at 70°C. Vertical peak-load curve The 3-second curve is 130% through 50°C, then declines. Follow the actual plotted high-temperature peak limit; 130% is not available throughout the entire ambient range. Input-voltage curve, 60 Hz 90% load at 180 VAC, rising to 100% at 200 VAC; 100% continues to 264 VAC. Do not superimpose indefinitely repeated boosts on a continuous rated-power load: lower-load intervals are needed to meet the stated average-power limit. Apply temperature and input-voltage limits together. Parallel Current Sharing Maximum units 4 units; consult the manufacturer for other configurations. Output-voltage matching The difference between outputs must be less than 0.2 V. Maximum total load current 20 A × number of units × 0.9. With 4 units this gives 72 A before any other required derating; the unadjusted sum of nameplate powers is not the continuous load allowance. Minimum parallel load Greater than 5% × rated current per unit × number of units. Sharing connections Connect all P+ terminals together and all P- terminals together. On CN205, pin 1 is P- and pin 2 is P+. Twist the P+/P- lines as a pair. Connect the outputs with short, large-diameter wiring before routing to the load. Below 5% of total rated load, only the master may operate; slave supplies may enter standby and their output LEDs and relays may remain off. Minor noise at light load during parallel operation is described as normal and not affecting performance. Environment and Installation Clearances Cooling / operating temperature Free-air convection; -30 to +70°C, subject to the vertical derating curves. Humidity / storage Working: 20–95% RH, non-condensing. Storage: -40 to +85°C, 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2 G, 10 minutes per cycle and 60 minutes along each X, Y and Z axis. Mounting complies with IEC60068-2-6. Installation clearances For permanent full-power loading, the catalogue recommends 40 mm above, 20 mm below and 5 mm on each side. Allow 15 mm next to a device that is a heat source. Altitude derating note For this fanless supply, reduce allowable ambient temperature by 3.5°C per additional 1000 m above 2000 m (6500 ft). No maximum operating altitude is specified by this note. Dimensions, Terminals and Accessories Dimensions / case 110 × 125.2 × 150 mm (W × H × D); case 214A, mechanical drawing tolerance ±1 mm. DIN rail TS-35/7.5 or TS-35/15; the drawing shows a 35 mm rail profile. AC input TB1 Pin 1: FG protective earth; pin 2: AC/N; pin 3: AC/L. DC output TB2 Pins 1–3: +V; pins 4–6: -V. Adjustment / indication The mechanical drawing identifies +V ADJ and the DC OK indicator. Follow the complete drawing and the unit markings for wiring and installation. Control connector CN205 Pin 1: P-; pin 2: P+; pins 3–4: DC OK relay contact. CN205 connector / mating housing Board connector: DINKLE ECH250R-04P or equivalent. Mating housing: DINKLE ESC250V-04P or equivalent, included in the single package. CN205 wire range 0.081–0.517 mm² (28–20 AWG). The listed mating housing is an included item; the DIN rail and other wiring accessories are not stated to be included. Use the named compatible connector or a verified equivalent. Safety, Insulation and EMC Catalogue-listed safety UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004; BSMI CNS15598-1. The table also states compliance with BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Insulation resistance More than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. Emissions BS EN/EN55032 (CISPR32) and BS EN/EN61204-3: conducted Class B, radiated Class A; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936; KC KSC9832. Consult MEAN WELL for radiated Class B deployment. Immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55024; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. KC KSC9835 is also listed. This supply is a component for installation in final equipment. Reconfirm compliance of the completed equipment with the applicable EMC directives. Weight, Reliability and Reference Conditions Catalogue unit weight 2470 g, converted from the explicit 2.47 kg PACKING reference per unit; not a measured net weight, shipping weight or a carton-weight average. MTBF 660.2 K hours minimum, Telcordia SR-332 (Bellcore); 70.7 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability references, not guaranteed service life. Manufacturer statements 100% full-load burn-in test and a three-year warranty are listed in the catalogue; applicable manufacturer terms govern warranty coverage. Default test conditions Unless otherwise specified: 230 VAC input, rated load and 25°C ambient. Datasheet revision SDR-960-SPEC, 2025-02-17; combined SDR catalogue pages 16–18.

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MEAN WELL SDR-960-24 is a convection-cooled industrial DIN rail power supply rated at 24 V DC, 40 A and 960 W. It includes active PFC, adjustable output, a DC OK relay and current sharing. Its 130% peak capability is limited to 3 seconds; average output power must remain within 960 W and all input-voltage and temperature limits apply. Product Datasheet Download MEAN WELL SDR-960 Datasheet (PDF) The SDR-960 section is on PDF pages 16, 17, 18. Refer to the complete mechanical drawings and notes when planning installation. Model Identification Complete model SDR-960-24 SDR-960 family 960 W single-output family with built-in current sharing. 24 output code 24 V nominal DC output. Construction Active PFC, free-air convection, constant-current limiting, adjustable DC output and DC OK indication/contact. No fan is required by the stated cooling method. DC Output Nominal output 24 V DC; 40 A rated, current range 0–40 A; 960 W rated power. Peak output 52 A / 1248 W (130% of rated power), for no more than 3 seconds; average output power must not exceed 960 W. Output-voltage adjustment 24–28 V DC using +V ADJ. Stay within rated current and power when adjusting. Ripple and noise, maximum 180 mVp-p. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%. Efficiency, typical 94% under the stated catalogue reference conditions. Ripple and noise are measured with 20 MHz bandwidth and a 12-inch twisted pair terminated with 0.1 µF and 47 µF parallel capacitors. Input and Starting AC input 180–264 VAC; this is not a 115 VAC input model. DC input 254–370 VDC. Frequency 47–63 Hz. Power factor, typical PF ≥0.95 at 230 VAC, at full load. AC input current, typical 6 A at 230 VAC. Cold-start inrush, typical 50 A at 230 VAC. Setup / rise time 1000 / 100 ms at 230 VAC, at full load. Hold-up time, typical 14 ms at 230 VAC, at full load. Leakage current Less than 3.5 mA at 240 VAC. Protection and DC OK Relay Short circuit / overload At 105–130% of rated output power, the specification describes operation for more than 3 seconds followed by output shutdown; automatic recovery occurs after 30 seconds if the peak-load condition has been removed. At 130–150%, constant-current limiting operates for more than 3 seconds before shutdown; re-power to recover. Overvoltage 29–33 V; output shutdown with automatic recovery or re-power to recover. Overtemperature Output shutdown; automatic recovery after temperature falls. DC OK closed / open Closed: PSU on / DC OK. Open: PSU off / DC fail. Relay contact limits Resistive load: 60 VDC / 0.3 A, 30 VDC / 1 A or 30 VAC / 0.5 A. Use these voltage/current combinations; the function table also identifies the 30 V / 1 A resistive reference. The overload response is protective behavior, not permission to extend the 3-second peak limit. The relay is a contact output; no numeric DC OK trip threshold or logic-output voltage is specified here. Peak Loading and Derating Repeated peak loading Limit each peak to 3 seconds and keep the complete-cycle average at or below 960 W. No universal fixed duty-cycle percentage is specified; the permitted duty depends on the intervening load and all derating limits. Lower-baseline waveform example The second catalogue waveform shows 480 W for 15 seconds and 1248 W for 3 seconds. Apply the separate average-power limit; this example does not authorize a longer peak. Vertical continuous-load curve 100% from -30°C to 50°C, then reduce along the plotted line to 60% at 70°C. Vertical peak-load curve The 3-second curve is 130% through 50°C, then declines. Follow the actual plotted high-temperature peak limit; 130% is not available throughout the entire ambient range. Input-voltage curve, 60 Hz 90% load at 180 VAC, rising to 100% at 200 VAC; 100% continues to 264 VAC. Do not superimpose indefinitely repeated boosts on a continuous rated-power load: lower-load intervals are needed to meet the stated average-power limit. Apply temperature and input-voltage limits together. Parallel Current Sharing Maximum units 4 units; consult the manufacturer for other configurations. Output-voltage matching The difference between outputs must be less than 0.2 V. Maximum total load current 40 A × number of units × 0.9. With 4 units this gives 144 A before any other required derating; the unadjusted sum of nameplate powers is not the continuous load allowance. Minimum parallel load Greater than 5% × rated current per unit × number of units. Sharing connections Connect all P+ terminals together and all P- terminals together. On CN205, pin 1 is P- and pin 2 is P+. Twist the P+/P- lines as a pair. Connect the outputs with short, large-diameter wiring before routing to the load. Below 5% of total rated load, only the master may operate; slave supplies may enter standby and their output LEDs and relays may remain off. Minor noise at light load during parallel operation is described as normal and not affecting performance. Environment and Installation Clearances Cooling / operating temperature Free-air convection; -30 to +70°C, subject to the vertical derating curves. Humidity / storage Working: 20–95% RH, non-condensing. Storage: -40 to +85°C, 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2 G, 10 minutes per cycle and 60 minutes along each X, Y and Z axis. Mounting complies with IEC60068-2-6. Installation clearances For permanent full-power loading, the catalogue recommends 40 mm above, 20 mm below and 5 mm on each side. Allow 15 mm next to a device that is a heat source. Altitude derating note For this fanless supply, reduce allowable ambient temperature by 3.5°C per additional 1000 m above 2000 m (6500 ft). No maximum operating altitude is specified by this note. Dimensions, Terminals and Accessories Dimensions / case 110 × 125.2 × 150 mm (W × H × D); case 214A, mechanical drawing tolerance ±1 mm. DIN rail TS-35/7.5 or TS-35/15; the drawing shows a 35 mm rail profile. AC input TB1 Pin 1: FG protective earth; pin 2: AC/N; pin 3: AC/L. DC output TB2 Pins 1–3: +V; pins 4–6: -V. Adjustment / indication The mechanical drawing identifies +V ADJ and the DC OK indicator. Follow the complete drawing and the unit markings for wiring and installation. Control connector CN205 Pin 1: P-; pin 2: P+; pins 3–4: DC OK relay contact. CN205 connector / mating housing Board connector: DINKLE ECH250R-04P or equivalent. Mating housing: DINKLE ESC250V-04P or equivalent, included in the single package. CN205 wire range 0.081–0.517 mm² (28–20 AWG). The listed mating housing is an included item; the DIN rail and other wiring accessories are not stated to be included. Use the named compatible connector or a verified equivalent. Safety, Insulation and EMC Catalogue-listed safety UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004; BSMI CNS15598-1. The table also states compliance with BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Insulation resistance More than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. Emissions BS EN/EN55032 (CISPR32) and BS EN/EN61204-3: conducted Class B, radiated Class A; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936; KC KSC9832. Consult MEAN WELL for radiated Class B deployment. Immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55024; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. KC KSC9835 is also listed. This supply is a component for installation in final equipment. Reconfirm compliance of the completed equipment with the applicable EMC directives. Weight, Reliability and Reference Conditions Catalogue unit weight 2470 g, converted from the explicit 2.47 kg PACKING reference per unit; not a measured net weight, shipping weight or a carton-weight average. MTBF 660.2 K hours minimum, Telcordia SR-332 (Bellcore); 70.7 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability references, not guaranteed service life. Manufacturer statements 100% full-load burn-in test and a three-year warranty are listed in the catalogue; applicable manufacturer terms govern warranty coverage. Default test conditions Unless otherwise specified: 230 VAC input, rated load and 25°C ambient. Datasheet revision SDR-960-SPEC, 2025-02-17; combined SDR catalogue pages 16–18.

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MEAN WELL SDR-480P-48 is a convection-cooled industrial DIN rail power supply rated at 48 V DC, 10 A and 480 W. It includes active PFC, adjustable output, a DC OK relay and current sharing. Its 150% peak capability is limited to 3 seconds; average output power must remain within 480 W and all input-voltage and temperature limits apply. Product Datasheet Download MEAN WELL SDR-480P Datasheet (PDF) The SDR-480P section is on PDF pages 13, 14, 15. Refer to the complete mechanical drawings and notes when planning installation. Model Identification Complete model SDR-480P-48 SDR-480P family 480 W family with the P current-sharing designation; retain the complete SDR-480P code. 48 output code 48 V nominal DC output. Construction Active PFC, free-air convection, constant-current limiting, adjustable DC output and DC OK indication/contact. No fan is required by the stated cooling method. DC Output Nominal output 48 V DC; 10 A rated, current range 0–10 A; 480 W rated power. Peak output 15 A / 720 W (150% of rated power), for no more than 3 seconds; average output power must not exceed 480 W. Output-voltage adjustment 48–55 V DC using +V ADJ. Stay within rated current and power when adjusting. Ripple and noise, maximum 120 mVp-p. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%. Efficiency, typical 94% under the stated catalogue reference conditions. Ripple and noise are measured with 20 MHz bandwidth and a 12-inch twisted pair terminated with 0.1 µF and 47 µF parallel capacitors. Input and Starting AC input 90–264 VAC, full range. DC input 127–370 VDC. Frequency 47–63 Hz. Power factor, typical 0.94 at 230 VAC and 0.99 at 115 VAC, at full load. AC input current, typical 5 A at 115 VAC; 2.5 A at 230 VAC. Inrush current, typical 40 A at 115 VAC; 80 A at 230 VAC. Setup / rise time 1500 / 150 ms at 230 VAC; 3000 / 150 ms at 115 VAC, at full load. Hold-up time, typical 14 ms at 230 VAC, at full load. Leakage current Less than 0.6 mA at 240 VAC. Protection and DC OK Relay Short circuit / overload At 110–150% of rated output power, the specification describes operation for more than 3 seconds followed by output shutdown with automatic recovery. Above 150%, constant-current limiting provides automatic recovery within 2 seconds; a condition persisting beyond 2 seconds may cause shutdown. Overvoltage 56–65 V; output shutdown with automatic recovery or re-power to recover. Overtemperature 105 ±5°C at the power-switch heatsink TSW, not an ambient-temperature rating. Output shutdown; automatic recovery after temperature falls. DC OK closed / open Closed: PSU on / DC OK. Open: PSU off / DC fail. Relay contact limits Resistive load: 60 VDC / 0.3 A, 30 VDC / 1 A or 30 VAC / 0.5 A. Use these voltage/current combinations; the function table also identifies the 30 V / 1 A resistive reference. The overload response is protective behavior, not permission to extend the 3-second peak limit. The relay is a contact output; no numeric DC OK trip threshold or logic-output voltage is specified here. Peak Loading and Derating Repeated peak loading Limit each peak to 3 seconds and keep the complete-cycle average at or below 480 W. No universal fixed duty-cycle percentage is specified; the permitted duty depends on the intervening load and all derating limits. Lower-baseline waveform example The second catalogue waveform shows 240 W for 15 seconds and 720 W for 3 seconds. Apply the separate average-power limit; this example does not authorize a longer peak. Vertical continuous-load curve At 230 VAC: 100% from -25°C to 60°C, then reduce to 80% at 70°C. At 100 VAC, reduction starts at 55°C and reaches 80% at 70°C. Vertical peak-load curve The 3-second curve is 150% through 60°C and declines to 120% at 70°C. Input-voltage curve, 60 Hz 90% load at 90 VAC, rising to 100% at 100 VAC; 100% continues to 264 VAC. Do not superimpose indefinitely repeated boosts on a continuous rated-power load: lower-load intervals are needed to meet the stated average-power limit. Apply temperature and input-voltage limits together. Parallel Current Sharing Maximum units 8 units; consult the manufacturer for other configurations. Output-voltage matching The difference between outputs must be less than 0.2 V. Maximum total load current 10 A × number of units × 0.9. With 8 units this gives 72 A before any other required derating; the unadjusted sum of nameplate powers is not the continuous load allowance. Minimum parallel load Greater than 3% × rated current per unit × number of units. Sharing connections Connect all P+ terminals together and all P- terminals together, with the DC outputs connected in parallel as shown. On TB2, P+ is pin 7 and P- is pin 8. Environment and Installation Clearances Cooling / operating temperature Free-air convection; -25 to +70°C, subject to the vertical derating curves. Humidity / storage Working: 20–95% RH, non-condensing. Storage: -40 to +85°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2 G, 10 minutes per cycle and 60 minutes along each X, Y and Z axis. Mounting complies with IEC60068-2-6. Installation clearances For permanent full-power loading, the catalogue recommends 40 mm above, 20 mm below and 5 mm on each side. Allow 15 mm next to a device that is a heat source. Altitude derating note For this fanless supply, reduce allowable ambient temperature by 3.5°C per additional 1000 m above 2000 m (6500 ft). No maximum operating altitude is specified by this note. Dimensions, Terminals and Accessories Dimensions / case 85.5 × 125.2 × 128.5 mm (W × H × D); case 984A, mechanical drawing tolerance ±1 mm. DIN rail TS-35/7.5 or TS-35/15; the drawing shows a 35 mm rail profile. AC input TB1 Pin 1: FG protective earth; pin 2: AC/N; pin 3: AC/L. DC output TB2 Pins 1–2: +V; pins 3–4: -V; pins 5–6: DC OK relay; pin 7: P+; pin 8: P-. Adjustment / indication The mechanical drawing identifies +V ADJ and the DC OK indicator. Follow the complete drawing and the unit markings for wiring and installation. No separately orderable terminal or connector accessory code is listed for this model; do not assume a DIN rail or additional wiring kit is included. Safety, Insulation and EMC Catalogue-listed safety UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004; BSMI CNS15598-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Insulation resistance More than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. Emissions BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936. Immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. SEMI F47 approval is listed. This supply is a component for installation in final equipment. Reconfirm compliance of the completed equipment with the applicable EMC directives. Weight, Reliability and Reference Conditions Catalogue unit weight 1600 g, converted from the explicit 1.6 kg PACKING reference per unit; not a measured net weight, shipping weight or a carton-weight average. MTBF 969.8 K hours minimum, Telcordia SR-332 (Bellcore); 118.6 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability references, not guaranteed service life. Manufacturer statements 100% full-load burn-in test and a three-year warranty are listed in the catalogue; applicable manufacturer terms govern warranty coverage. Default test conditions Unless otherwise specified: 230 VAC input, rated load and 25°C ambient. Datasheet revision SDR-480P-SPEC, 2025-02-17; combined SDR catalogue pages 13–15.

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MEAN WELL SDR-480P-24 is a convection-cooled industrial DIN rail power supply rated at 24 V DC, 20 A and 480 W. It includes active PFC, adjustable output, a DC OK relay and current sharing. Its 150% peak capability is limited to 3 seconds; average output power must remain within 480 W and all input-voltage and temperature limits apply. Product Datasheet Download MEAN WELL SDR-480P Datasheet (PDF) The SDR-480P section is on PDF pages 13, 14, 15. Refer to the complete mechanical drawings and notes when planning installation. Model Identification Complete model SDR-480P-24 SDR-480P family 480 W family with the P current-sharing designation; retain the complete SDR-480P code. 24 output code 24 V nominal DC output. Construction Active PFC, free-air convection, constant-current limiting, adjustable DC output and DC OK indication/contact. No fan is required by the stated cooling method. DC Output Nominal output 24 V DC; 20 A rated, current range 0–20 A; 480 W rated power. Peak output 30 A / 720 W (150% of rated power), for no more than 3 seconds; average output power must not exceed 480 W. Output-voltage adjustment 24–28 V DC using +V ADJ. Stay within rated current and power when adjusting. Ripple and noise, maximum 100 mVp-p. Voltage tolerance ±1.2%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%. Efficiency, typical 94% under the stated catalogue reference conditions. Ripple and noise are measured with 20 MHz bandwidth and a 12-inch twisted pair terminated with 0.1 µF and 47 µF parallel capacitors. Input and Starting AC input 90–264 VAC, full range. DC input 127–370 VDC. Frequency 47–63 Hz. Power factor, typical 0.94 at 230 VAC and 0.99 at 115 VAC, at full load. AC input current, typical 5 A at 115 VAC; 2.5 A at 230 VAC. Inrush current, typical 40 A at 115 VAC; 80 A at 230 VAC. Setup / rise time 1500 / 150 ms at 230 VAC; 3000 / 150 ms at 115 VAC, at full load. Hold-up time, typical 14 ms at 230 VAC, at full load. Leakage current Less than 0.6 mA at 240 VAC. Protection and DC OK Relay Short circuit / overload At 110–150% of rated output power, the specification describes operation for more than 3 seconds followed by output shutdown with automatic recovery. Above 150%, constant-current limiting provides automatic recovery within 2 seconds; a condition persisting beyond 2 seconds may cause shutdown. Overvoltage 29–33 V; output shutdown with automatic recovery or re-power to recover. Overtemperature 105 ±5°C at the power-switch heatsink TSW, not an ambient-temperature rating. Output shutdown; automatic recovery after temperature falls. DC OK closed / open Closed: PSU on / DC OK. Open: PSU off / DC fail. Relay contact limits Resistive load: 60 VDC / 0.3 A, 30 VDC / 1 A or 30 VAC / 0.5 A. Use these voltage/current combinations; the function table also identifies the 30 V / 1 A resistive reference. The overload response is protective behavior, not permission to extend the 3-second peak limit. The relay is a contact output; no numeric DC OK trip threshold or logic-output voltage is specified here. Peak Loading and Derating Repeated peak loading Limit each peak to 3 seconds and keep the complete-cycle average at or below 480 W. No universal fixed duty-cycle percentage is specified; the permitted duty depends on the intervening load and all derating limits. Lower-baseline waveform example The second catalogue waveform shows 240 W for 15 seconds and 720 W for 3 seconds. Apply the separate average-power limit; this example does not authorize a longer peak. Vertical continuous-load curve At 230 VAC: 100% from -25°C to 60°C, then reduce to 80% at 70°C. At 100 VAC, reduction starts at 55°C and reaches 80% at 70°C. Vertical peak-load curve The 3-second curve is 150% through 60°C and declines to 120% at 70°C. Input-voltage curve, 60 Hz 90% load at 90 VAC, rising to 100% at 100 VAC; 100% continues to 264 VAC. Do not superimpose indefinitely repeated boosts on a continuous rated-power load: lower-load intervals are needed to meet the stated average-power limit. Apply temperature and input-voltage limits together. Parallel Current Sharing Maximum units 8 units; consult the manufacturer for other configurations. Output-voltage matching The difference between outputs must be less than 0.2 V. Maximum total load current 20 A × number of units × 0.9. With 8 units this gives 144 A before any other required derating; the unadjusted sum of nameplate powers is not the continuous load allowance. Minimum parallel load Greater than 3% × rated current per unit × number of units. Sharing connections Connect all P+ terminals together and all P- terminals together, with the DC outputs connected in parallel as shown. On TB2, P+ is pin 7 and P- is pin 8. Environment and Installation Clearances Cooling / operating temperature Free-air convection; -25 to +70°C, subject to the vertical derating curves. Humidity / storage Working: 20–95% RH, non-condensing. Storage: -40 to +85°C, 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2 G, 10 minutes per cycle and 60 minutes along each X, Y and Z axis. Mounting complies with IEC60068-2-6. Installation clearances For permanent full-power loading, the catalogue recommends 40 mm above, 20 mm below and 5 mm on each side. Allow 15 mm next to a device that is a heat source. Altitude derating note For this fanless supply, reduce allowable ambient temperature by 3.5°C per additional 1000 m above 2000 m (6500 ft). No maximum operating altitude is specified by this note. Dimensions, Terminals and Accessories Dimensions / case 85.5 × 125.2 × 128.5 mm (W × H × D); case 984A, mechanical drawing tolerance ±1 mm. DIN rail TS-35/7.5 or TS-35/15; the drawing shows a 35 mm rail profile. AC input TB1 Pin 1: FG protective earth; pin 2: AC/N; pin 3: AC/L. DC output TB2 Pins 1–2: +V; pins 3–4: -V; pins 5–6: DC OK relay; pin 7: P+; pin 8: P-. Adjustment / indication The mechanical drawing identifies +V ADJ and the DC OK indicator. Follow the complete drawing and the unit markings for wiring and installation. No separately orderable terminal or connector accessory code is listed for this model; do not assume a DIN rail or additional wiring kit is included. Safety, Insulation and EMC Catalogue-listed safety UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004; BSMI CNS15598-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Insulation resistance More than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. Emissions BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936. Immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. SEMI F47 approval is listed. This supply is a component for installation in final equipment. Reconfirm compliance of the completed equipment with the applicable EMC directives. Weight, Reliability and Reference Conditions Catalogue unit weight 1600 g, converted from the explicit 1.6 kg PACKING reference per unit; not a measured net weight, shipping weight or a carton-weight average. MTBF 969.8 K hours minimum, Telcordia SR-332 (Bellcore); 118.6 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability references, not guaranteed service life. Manufacturer statements 100% full-load burn-in test and a three-year warranty are listed in the catalogue; applicable manufacturer terms govern warranty coverage. Default test conditions Unless otherwise specified: 230 VAC input, rated load and 25°C ambient. Datasheet revision SDR-480P-SPEC, 2025-02-17; combined SDR catalogue pages 13–15.

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MEAN WELL SDR-480-48 is a single-output industrial DIN rail power supply rated at 48 V DC, 10 A and 480 W. It accepts 90–264 VAC or 127–370 VDC, uses free-air convection and includes active PFC, adjustable output and a DC OK relay. Peak output up to 720 W is limited to three seconds and the operating conditions below. Product Datasheet Download MEAN WELL SDR-480 Datasheet (PDF) The SDR-480 section is on PDF pages 10, 11, 12. Refer to the complete mechanical drawings and notes when planning installation. Model and Output Complete model SDR-480-48; SDR-480 catalogue revision 2025-02-17. The final number identifies the nominal 48 V output. Rated DC output 48 V / 10 A / 480 W; current range 0–10 A. Peak output 15 A / 720 W (150% of rated power), for a maximum of 3 seconds and subject to the peak-loading and derating conditions below. Voltage adjustment 48–55 V using +V ADJ. Observe the rated current and power limits when adjusting voltage. Ripple and noise 120 mVp-p maximum, measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by parallel 0.1 µF and 47 µF capacitors. Voltage tolerance ±1%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 94% typical at 230 VAC, rated load and 25°C ambient. Input and Timing AC / DC input 90–264 VAC or 127–370 VDC; AC frequency 47–63 Hz. Active PFC / typical power factor Built-in active power-factor correction; typical PF 0.94 at 230 VAC and 0.99 at 115 VAC, at full load. Typical AC input current 5 A at 115 VAC; 2.5 A at 230 VAC. Typical inrush current 40 A at 115 VAC; 80 A at 230 VAC. Leakage current Less than 0.8 mA at 240 VAC. Setup / rise time 1500 / 150 ms at 230 VAC; 3000 / 150 ms at 115 VAC, at full load. Typical hold-up time 14 ms at 230 VAC, at full load. Unless otherwise stated, specifications are measured at 230 VAC input, rated load and 25°C ambient. Peak Loading and Derating Peak-duration limit Up to 720 W for no more than 3 seconds, within the permitted input and temperature conditions. Peak capability is not a continuous power rating. Temperature curves For vertical mounting, the continuous-load curve at 230 VAC allows 100% through +60°C, while at 100 VAC the full-load limit is +55°C; both decrease to 80% at +70°C. The three-second peak curve has an upper envelope of 150% through +60°C, decreasing to 120% at +70°C. Apply the input-voltage limit and average-power restriction as well. Input-voltage curve At 60 Hz AC, the graph shows 90% load at 90 VAC, increasing to 100% at 100 VAC and remaining at 100% through 264 VAC. Cooling / orientation Free-air convection; use vertical mounting for the published temperature-derating curves. Keep the ventilation path unobstructed. The average output power must not exceed 480 W, and each peak must last no more than 3 seconds. The second page 12 example shows 240 W for 15 seconds followed by 720 W for 3 seconds; its calculated cycle average is 320 W before applying any additional derating. Do not use a peak diagram to bypass the average-power limit. Apply the input and temperature restrictions together; use the more restrictive allowable load. See PDF page 12 for the full curves. Protection and DC OK Monitoring Short circuit / overload The catalogue lists short-circuit protection. At 110–150% of rated output power, overload operation lasting more than 3 seconds is followed by output shutdown with automatic recovery. Above 150% rated power Constant-current limiting with automatic recovery within 2 seconds; operation beyond 2 seconds may cause output shutdown. Overvoltage 56–65 V; output shutdown, with automatic or re-powering recovery. Overtemperature Output shutdown, with automatic recovery after the temperature decreases. The catalogue does not specify a numerical trip temperature for this model. DC OK relay states Contact closed: PSU turns on / DC OK. Contact open: PSU turns off / DC Fail. DC OK contact ratings Maximum resistive-load ratings: 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A. Front indication / adjustment DC OK LED and +V ADJ output adjustment are shown on the mechanical drawing. Protection thresholds describe fault response; they do not extend the permitted three-second peak duration. The DC OK relay is a monitoring contact, not an auxiliary power output. Environment and Reliability Working temperature / humidity −25 to +70°C subject to the stated derating; 20–95% RH, non-condensing. Storage temperature / humidity −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2G, 10 min/cycle, 60 min along each X, Y and Z axis. Mounting: compliance with IEC60068-2-6. MTBF reference 964.2 K hours minimum, Telcordia SR-332 (Bellcore); 91.9 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability calculations, not a guaranteed service life. For this fanless model, apply an additional ambient-temperature derating of 3.5°C per 1000 m above 2000 m. This footnote does not specify a maximum approved installation altitude. Safety, Isolation and EMC Catalogue approval listing UL508, TUV BS EN/EN62368-1, AS/NZS62368.1, BSMI CNS15598-1 and EAC TP TC004. The catalogue also states that the unit meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Isolation resistance Greater than 100 MΩ for input–output, input–FG and output–FG, at 500 VDC, 25°C and 70% RH. EMC emission BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2 and -3, EAC TP TC020 and CNS15936. EMC immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. Voltage-sag immunity SEMI F47 approved, as listed in the catalogue. This power supply is a component for installation in final equipment. The completed equipment must be checked again for applicable EMC compliance. Dimensions, Terminals and Installation Body dimensions 85.5 × 125.2 × 128.5 mm (W × H × D); case 984A; drawing tolerance ±1 mm. DIN rail Compatible with TS-35/7.5 or TS-35/15; the rail drawing marks a 35 mm width. TB1 input terminals Pin 1: FG (protective earth); pin 2: AC/N; pin 3: AC/L. TB2 output / signal terminals Pins 1 and 2: +V; pins 3 and 4: −V; pins 5 and 6: DC OK relay contact; pins 7 and 8: NC (no connection). Recommended full-load clearances 40 mm above, 20 mm below and 5 mm at each side. Where the adjacent device is a heat source, 15 mm clearance is recommended. Wiring and fastening Follow the actual terminal markings and connect FG to protective earth. Use the unit’s installation instructions for conductor size and tightening torque; these catalogue pages do not give numerical limits. Refer to PDF page 11 for the terminal layout, DIN-rail latch and body drawing. A compatible DIN rail is an installation item; its compatibility does not mean a rail is included. No separately orderable MEAN WELL bracket, cover, connector or cable accessory code is specified in these SDR-480 pages. This model has no P suffix. Do not apply the SDR-480P parallel current-sharing specification to this model. Weight and Manufacturer Information Catalogue packing reference per unit 1600 g, from the PACKING entry on PDF page 10: 1.6 kg; 8 pcs / 13.8 kg / 0.9 CUFT. This is a catalogue packing reference, not a measured net or shipping weight. Production test The manufacturer lists a 100% full-load burn-in test. Manufacturer warranty The catalogue lists a three-year warranty, subject to the manufacturer’s applicable terms.

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MEAN WELL SDR-480-24 is a single-output industrial DIN rail power supply rated at 24 V DC, 20 A and 480 W. It accepts 90–264 VAC or 127–370 VDC, uses free-air convection and includes active PFC, adjustable output and a DC OK relay. Peak output up to 720 W is limited to three seconds and the operating conditions below. Product Datasheet Download MEAN WELL SDR-480 Datasheet (PDF) The SDR-480 section is on PDF pages 10, 11, 12. Refer to the complete mechanical drawings and notes when planning installation. Model and Output Complete model SDR-480-24; SDR-480 catalogue revision 2025-02-17. The final number identifies the nominal 24 V output. Rated DC output 24 V / 20 A / 480 W; current range 0–20 A. Peak output 30 A / 720 W (150% of rated power), for a maximum of 3 seconds and subject to the peak-loading and derating conditions below. Voltage adjustment 24–28 V using +V ADJ. Observe the rated current and power limits when adjusting voltage. Ripple and noise 100 mVp-p maximum, measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by parallel 0.1 µF and 47 µF capacitors. Voltage tolerance ±1.2%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 94% typical at 230 VAC, rated load and 25°C ambient. Input and Timing AC / DC input 90–264 VAC or 127–370 VDC; AC frequency 47–63 Hz. Active PFC / typical power factor Built-in active power-factor correction; typical PF 0.94 at 230 VAC and 0.99 at 115 VAC, at full load. Typical AC input current 5 A at 115 VAC; 2.5 A at 230 VAC. Typical inrush current 40 A at 115 VAC; 80 A at 230 VAC. Leakage current Less than 0.8 mA at 240 VAC. Setup / rise time 1500 / 150 ms at 230 VAC; 3000 / 150 ms at 115 VAC, at full load. Typical hold-up time 14 ms at 230 VAC, at full load. Unless otherwise stated, specifications are measured at 230 VAC input, rated load and 25°C ambient. Peak Loading and Derating Peak-duration limit Up to 720 W for no more than 3 seconds, within the permitted input and temperature conditions. Peak capability is not a continuous power rating. Temperature curves For vertical mounting, the continuous-load curve at 230 VAC allows 100% through +60°C, while at 100 VAC the full-load limit is +55°C; both decrease to 80% at +70°C. The three-second peak curve has an upper envelope of 150% through +60°C, decreasing to 120% at +70°C. Apply the input-voltage limit and average-power restriction as well. Input-voltage curve At 60 Hz AC, the graph shows 90% load at 90 VAC, increasing to 100% at 100 VAC and remaining at 100% through 264 VAC. Cooling / orientation Free-air convection; use vertical mounting for the published temperature-derating curves. Keep the ventilation path unobstructed. The average output power must not exceed 480 W, and each peak must last no more than 3 seconds. The second page 12 example shows 240 W for 15 seconds followed by 720 W for 3 seconds; its calculated cycle average is 320 W before applying any additional derating. Do not use a peak diagram to bypass the average-power limit. Apply the input and temperature restrictions together; use the more restrictive allowable load. See PDF page 12 for the full curves. Protection and DC OK Monitoring Short circuit / overload The catalogue lists short-circuit protection. At 110–150% of rated output power, overload operation lasting more than 3 seconds is followed by output shutdown with automatic recovery. Above 150% rated power Constant-current limiting with automatic recovery within 2 seconds; operation beyond 2 seconds may cause output shutdown. Overvoltage 29–33 V; output shutdown, with automatic or re-powering recovery. Overtemperature Output shutdown, with automatic recovery after the temperature decreases. The catalogue does not specify a numerical trip temperature for this model. DC OK relay states Contact closed: PSU turns on / DC OK. Contact open: PSU turns off / DC Fail. DC OK contact ratings Maximum resistive-load ratings: 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A. Front indication / adjustment DC OK LED and +V ADJ output adjustment are shown on the mechanical drawing. Protection thresholds describe fault response; they do not extend the permitted three-second peak duration. The DC OK relay is a monitoring contact, not an auxiliary power output. Environment and Reliability Working temperature / humidity −25 to +70°C subject to the stated derating; 20–95% RH, non-condensing. Storage temperature / humidity −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2G, 10 min/cycle, 60 min along each X, Y and Z axis. Mounting: compliance with IEC60068-2-6. MTBF reference 964.2 K hours minimum, Telcordia SR-332 (Bellcore); 91.9 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability calculations, not a guaranteed service life. For this fanless model, apply an additional ambient-temperature derating of 3.5°C per 1000 m above 2000 m. This footnote does not specify a maximum approved installation altitude. Safety, Isolation and EMC Catalogue approval listing UL508, TUV BS EN/EN62368-1, AS/NZS62368.1, BSMI CNS15598-1 and EAC TP TC004. The catalogue also states that the unit meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Isolation resistance Greater than 100 MΩ for input–output, input–FG and output–FG, at 500 VDC, 25°C and 70% RH. EMC emission BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2 and -3, EAC TP TC020 and CNS15936. EMC immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. Voltage-sag immunity SEMI F47 approved, as listed in the catalogue. This power supply is a component for installation in final equipment. The completed equipment must be checked again for applicable EMC compliance. Dimensions, Terminals and Installation Body dimensions 85.5 × 125.2 × 128.5 mm (W × H × D); case 984A; drawing tolerance ±1 mm. DIN rail Compatible with TS-35/7.5 or TS-35/15; the rail drawing marks a 35 mm width. TB1 input terminals Pin 1: FG (protective earth); pin 2: AC/N; pin 3: AC/L. TB2 output / signal terminals Pins 1 and 2: +V; pins 3 and 4: −V; pins 5 and 6: DC OK relay contact; pins 7 and 8: NC (no connection). Recommended full-load clearances 40 mm above, 20 mm below and 5 mm at each side. Where the adjacent device is a heat source, 15 mm clearance is recommended. Wiring and fastening Follow the actual terminal markings and connect FG to protective earth. Use the unit’s installation instructions for conductor size and tightening torque; these catalogue pages do not give numerical limits. Refer to PDF page 11 for the terminal layout, DIN-rail latch and body drawing. A compatible DIN rail is an installation item; its compatibility does not mean a rail is included. No separately orderable MEAN WELL bracket, cover, connector or cable accessory code is specified in these SDR-480 pages. This model has no P suffix. Do not apply the SDR-480P parallel current-sharing specification to this model. Weight and Manufacturer Information Catalogue packing reference per unit 1600 g, from the PACKING entry on PDF page 10: 1.6 kg; 8 pcs / 13.8 kg / 0.9 CUFT. This is a catalogue packing reference, not a measured net or shipping weight. Production test The manufacturer lists a 100% full-load burn-in test. Manufacturer warranty The catalogue lists a three-year warranty, subject to the manufacturer’s applicable terms.

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MEAN WELL SDR-240-48 is a single-output industrial DIN rail power supply rated at 48 V DC, 5 A and 240 W. It accepts 88–264 VAC or 124–370 VDC, uses free-air convection and includes active PFC, adjustable output and a DC OK relay. Peak output up to 360 W is limited to three seconds and the operating conditions below. Product Datasheet Download MEAN WELL SDR-240 Datasheet (PDF) The SDR-240 section is on PDF pages 7, 8, 9. Refer to the complete mechanical drawings and notes when planning installation. Model and Output Complete model SDR-240-48; SDR-240 catalogue revision 2025-02-17. The final number identifies the nominal 48 V output. Rated DC output 48 V / 5 A / 240 W; current range 0–5 A. Peak output 7.5 A / 360 W (150% of rated power), for a maximum of 3 seconds and subject to the peak-loading and derating conditions below. Voltage adjustment 48–55 V using +V ADJ. Observe the rated current and power limits when adjusting voltage. Ripple and noise 50 mVp-p maximum, measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by parallel 0.1 µF and 47 µF capacitors. Voltage tolerance ±1%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 94% typical at 230 VAC, rated load and 25°C ambient; measured after 30 minutes of burn-in. Input and Timing AC / DC input 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Active PFC / typical power factor Built-in active power-factor correction; typical PF 0.94 at 230 VAC and 0.99 at 115 VAC, at full load. Typical AC input current 2.6 A at 115 VAC; 1.3 A at 230 VAC. Typical inrush current 33 A at 115 VAC; 55 A at 230 VAC. Leakage current Less than 1 mA at 240 VAC. Setup / rise time 650 / 60 ms at 230 VAC; 1300 / 60 ms at 115 VAC, at full load. Typical hold-up time 20 ms at both 230 VAC and 115 VAC, at full load. Unless otherwise stated, specifications are measured at 230 VAC input, rated load and 25°C ambient. Peak Loading and Derating Peak-duration limit Up to 360 W for no more than 3 seconds, within the permitted input and temperature conditions. Peak capability is not a continuous power rating. Temperature curves For vertical mounting, continuous load is 100% from −25 to +60°C, decreasing to 75% at +70°C. The three-second peak curve is 150% through +60°C, decreasing to 112.5% at +70°C. Input-voltage curve At 60 Hz AC, the graph shows 90% load at 88 VAC, increasing to 100% at 100 VAC and remaining at 100% through 264 VAC. Cooling / orientation Free-air convection; use vertical mounting for the published temperature-derating curves. Keep the ventilation path unobstructed. The page 9 peak-loading diagrams show two examples: 240 W for 100 seconds followed by 360 W for 3 seconds, or 120 W for 10 seconds followed by 360 W for 3 seconds. The marked 100-second and 10-second durations are the lower-load intervals, not the complete cycle periods. These examples do not establish an unrestricted duty cycle for other load patterns. Apply the input and temperature restrictions together; use the more restrictive allowable load. See PDF page 9 for the full curves. Protection and DC OK Monitoring Short circuit / overload The catalogue lists short-circuit protection. At 110–150% of rated output power, overload operation lasting more than 3 seconds is followed by output shutdown with automatic recovery. Above 150% rated power Constant-current limiting with automatic recovery within 2 seconds; operation beyond 2 seconds may cause output shutdown. Overvoltage 56–65 V; output shutdown, with automatic recovery. Overtemperature 95±5°C at TSW on the heatsink of the power switch; output shuts down and recovers automatically after cooling. This is an internal sensing temperature, not an ambient operating limit. DC OK relay states Contact closed: PSU turns on / DC OK. Contact open: PSU turns off / DC Fail. DC OK contact ratings Maximum resistive-load ratings: 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A. Front indication / adjustment DC OK LED and +V ADJ output adjustment are shown on the mechanical drawing. Protection thresholds describe fault response; they do not extend the permitted three-second peak duration. The DC OK relay is a monitoring contact, not an auxiliary power output. Environment and Reliability Working temperature / humidity −25 to +70°C subject to the stated derating; 20–95% RH, non-condensing. Storage temperature / humidity −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2G, 10 min/cycle, 60 min along each X, Y and Z axis. Mounting: compliance with IEC60068-2-6. MTBF reference 1160.3 K hours minimum, Telcordia SR-332 (Bellcore); 169.3 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability calculations, not a guaranteed service life. For this fanless model, apply an additional ambient-temperature derating of 3.5°C per 1000 m above 2000 m. This footnote does not specify a maximum approved installation altitude. Safety, Isolation and EMC Catalogue approval listing UL508, TUV BS EN/EN62368-1, AS/NZS62368.1, BSMI CNS15598-1 and EAC TP TC004. The catalogue also states that the unit meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Isolation resistance Greater than 100 MΩ for input–output, input–FG and output–FG, at 500 VDC, 25°C and 70% RH. EMC emission BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2 and -3, EAC TP TC020 and CNS15936. EMC immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. Voltage-sag immunity SEMI F47 approved, as listed in the catalogue. This power supply is a component for installation in final equipment. The completed equipment must be checked again for applicable EMC compliance. Dimensions, Terminals and Installation Body dimensions 63 × 125.2 × 113.5 mm (W × H × D); case 979A; drawing tolerance ±1 mm. DIN rail Compatible with TS-35/7.5 or TS-35/15; the rail drawing marks a 35 mm width. TB1 input terminals Pin 1: FG (protective earth); pin 2: AC/N; pin 3: AC/L. TB2 output / signal terminals Pins 1 and 2: DC OK relay contact; pins 3 and 4: +V; pins 5 and 6: −V. Recommended full-load clearances 40 mm above, 20 mm below and 5 mm at each side. Where the adjacent device is a heat source, 15 mm clearance is recommended. Wiring and fastening Follow the actual terminal markings and connect FG to protective earth. Use the unit’s installation instructions for conductor size and tightening torque; these catalogue pages do not give numerical limits. Refer to PDF page 8 for the terminal layout, DIN-rail latch and body drawing. A compatible DIN rail is an installation item; its compatibility does not mean a rail is included. No separately orderable MEAN WELL bracket, cover, connector or cable accessory code is specified in these SDR-240 pages. This model has no P suffix. Do not apply the SDR-480P parallel current-sharing specification to this model. Weight and Manufacturer Information Catalogue packing reference per unit 1030 g, from the PACKING entry on PDF page 7: 1.03 kg; 12 pcs / 13.4 kg / 1.22 CUFT. This is a catalogue packing reference, not a measured net or shipping weight. Production test The manufacturer lists a 100% full-load burn-in test. Manufacturer warranty The catalogue lists a three-year warranty, subject to the manufacturer’s applicable terms.

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MEAN WELL SDR-240-24 is a single-output industrial DIN rail power supply rated at 24 V DC, 10 A and 240 W. It accepts 88–264 VAC or 124–370 VDC, uses free-air convection and includes active PFC, adjustable output and a DC OK relay. Peak output up to 360 W is limited to three seconds and the operating conditions below. Product Datasheet Download MEAN WELL SDR-240 Datasheet (PDF) The SDR-240 section is on PDF pages 7, 8, 9. Refer to the complete mechanical drawings and notes when planning installation. Model and Output Complete model SDR-240-24; SDR-240 catalogue revision 2025-02-17. The final number identifies the nominal 24 V output. Rated DC output 24 V / 10 A / 240 W; current range 0–10 A. Peak output 15 A / 360 W (150% of rated power), for a maximum of 3 seconds and subject to the peak-loading and derating conditions below. Voltage adjustment 24–28 V using +V ADJ. Observe the rated current and power limits when adjusting voltage. Ripple and noise 50 mVp-p maximum, measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by parallel 0.1 µF and 47 µF capacitors. Voltage tolerance ±1%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 94% typical at 230 VAC, rated load and 25°C ambient; measured after 30 minutes of burn-in. Input and Timing AC / DC input 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Active PFC / typical power factor Built-in active power-factor correction; typical PF 0.94 at 230 VAC and 0.99 at 115 VAC, at full load. Typical AC input current 2.6 A at 115 VAC; 1.3 A at 230 VAC. Typical inrush current 33 A at 115 VAC; 55 A at 230 VAC. Leakage current Less than 1 mA at 240 VAC. Setup / rise time 650 / 60 ms at 230 VAC; 1300 / 60 ms at 115 VAC, at full load. Typical hold-up time 20 ms at both 230 VAC and 115 VAC, at full load. Unless otherwise stated, specifications are measured at 230 VAC input, rated load and 25°C ambient. Peak Loading and Derating Peak-duration limit Up to 360 W for no more than 3 seconds, within the permitted input and temperature conditions. Peak capability is not a continuous power rating. Temperature curves For vertical mounting, continuous load is 100% from −25 to +60°C, decreasing to 75% at +70°C. The three-second peak curve is 150% through +60°C, decreasing to 112.5% at +70°C. Input-voltage curve At 60 Hz AC, the graph shows 90% load at 88 VAC, increasing to 100% at 100 VAC and remaining at 100% through 264 VAC. Cooling / orientation Free-air convection; use vertical mounting for the published temperature-derating curves. Keep the ventilation path unobstructed. The page 9 peak-loading diagrams show two examples: 240 W for 100 seconds followed by 360 W for 3 seconds, or 120 W for 10 seconds followed by 360 W for 3 seconds. The marked 100-second and 10-second durations are the lower-load intervals, not the complete cycle periods. These examples do not establish an unrestricted duty cycle for other load patterns. Apply the input and temperature restrictions together; use the more restrictive allowable load. See PDF page 9 for the full curves. Protection and DC OK Monitoring Short circuit / overload The catalogue lists short-circuit protection. At 110–150% of rated output power, overload operation lasting more than 3 seconds is followed by output shutdown with automatic recovery. Above 150% rated power Constant-current limiting with automatic recovery within 2 seconds; operation beyond 2 seconds may cause output shutdown. Overvoltage 29–33 V; output shutdown, with automatic recovery. Overtemperature 95±5°C at TSW on the heatsink of the power switch; output shuts down and recovers automatically after cooling. This is an internal sensing temperature, not an ambient operating limit. DC OK relay states Contact closed: PSU turns on / DC OK. Contact open: PSU turns off / DC Fail. DC OK contact ratings Maximum resistive-load ratings: 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A. Front indication / adjustment DC OK LED and +V ADJ output adjustment are shown on the mechanical drawing. Protection thresholds describe fault response; they do not extend the permitted three-second peak duration. The DC OK relay is a monitoring contact, not an auxiliary power output. Environment and Reliability Working temperature / humidity −25 to +70°C subject to the stated derating; 20–95% RH, non-condensing. Storage temperature / humidity −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration Component: 10–500 Hz, 2G, 10 min/cycle, 60 min along each X, Y and Z axis. Mounting: compliance with IEC60068-2-6. MTBF reference 1160.3 K hours minimum, Telcordia SR-332 (Bellcore); 169.3 K hours minimum, MIL-HDBK-217F at 25°C. These are reliability calculations, not a guaranteed service life. For this fanless model, apply an additional ambient-temperature derating of 3.5°C per 1000 m above 2000 m. This footnote does not specify a maximum approved installation altitude. Safety, Isolation and EMC Catalogue approval listing UL508, TUV BS EN/EN62368-1, AS/NZS62368.1, BSMI CNS15598-1 and EAC TP TC004. The catalogue also states that the unit meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC; output–DC OK: 0.5 kVAC. Isolation resistance Greater than 100 MΩ for input–output, input–FG and output–FG, at 500 VDC, 25°C and 70% RH. EMC emission BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2 and -3, EAC TP TC020 and CNS15936. EMC immunity BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020. Voltage-sag immunity SEMI F47 approved, as listed in the catalogue. This power supply is a component for installation in final equipment. The completed equipment must be checked again for applicable EMC compliance. Dimensions, Terminals and Installation Body dimensions 63 × 125.2 × 113.5 mm (W × H × D); case 979A; drawing tolerance ±1 mm. DIN rail Compatible with TS-35/7.5 or TS-35/15; the rail drawing marks a 35 mm width. TB1 input terminals Pin 1: FG (protective earth); pin 2: AC/N; pin 3: AC/L. TB2 output / signal terminals Pins 1 and 2: DC OK relay contact; pins 3 and 4: +V; pins 5 and 6: −V. Recommended full-load clearances 40 mm above, 20 mm below and 5 mm at each side. Where the adjacent device is a heat source, 15 mm clearance is recommended. Wiring and fastening Follow the actual terminal markings and connect FG to protective earth. Use the unit’s installation instructions for conductor size and tightening torque; these catalogue pages do not give numerical limits. Refer to PDF page 8 for the terminal layout, DIN-rail latch and body drawing. A compatible DIN rail is an installation item; its compatibility does not mean a rail is included. No separately orderable MEAN WELL bracket, cover, connector or cable accessory code is specified in these SDR-240 pages. This model has no P suffix. Do not apply the SDR-480P parallel current-sharing specification to this model. Weight and Manufacturer Information Catalogue packing reference per unit 1030 g, from the PACKING entry on PDF page 7: 1.03 kg; 12 pcs / 13.4 kg / 1.22 CUFT. This is a catalogue packing reference, not a measured net or shipping weight. Production test The manufacturer lists a 100% full-load burn-in test. Manufacturer warranty The catalogue lists a three-year warranty, subject to the manufacturer’s applicable terms.

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MEAN WELL SDR-120-48 is a single-output industrial DIN rail power supply rated at 48 V DC, 2.5 A and 120 W. It combines an adjustable output, free-air convection and mounting on TS-35/7.5 or TS-35/15 rail. Built-in active PFC and a DC OK relay contact support industrial control installations. The specified 180 W peak is a short-duration capability, subject to the loading patterns and input/temperature curves below. Product Datasheet Download MEAN WELL SDR-120 Datasheet (PDF) The SDR-120 section is on PDF pages 4, 5, 6. Refer to the complete mechanical drawings and notes when planning installation. Model and DC Output Complete model SDR-120-48; SDR-120 catalogue revision 2025-06-09. The final code denotes 48 V nominal output. Continuous rating 48 V DC / 2.5 A / 120 W; output-current range 0–2.5 A. Voltage adjustment 48–55 V, using +V ADJ. Observe the model’s current and power limits when adjusting. Ripple and noise 120 mVp-p maximum; 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF termination capacitors. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 90.5% at the default 230 VAC input, rated-load and 25°C ambient test conditions. Use the published complete-model continuous and peak ratings; the series number and family-wide efficiency headline do not replace the individual model values. Peak Loading and Repetition Conditions Peak current / power 3.75 A / 180 W, for a maximum of 3 seconds. The catalogue describes this as 150% peak-load capability. Loading pattern 1 The published waveform alternates 120 W for 100 seconds with 180 W for 3 seconds. Loading pattern 2 The second waveform alternates 60 W for 15 seconds with 180 W for 3 seconds. These are the two specific loading patterns on PDF page 6, not permission to repeat the peak at an arbitrary duty cycle. Keep every peak within 3 seconds and apply the applicable peak-temperature curve and input derating. Continuous loading must follow the separate continuous curve. The 180 W peak does not replace the 120 W continuous rating, and overload protection is not a continuous operating mode. Input and Timing Input range 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Typical AC current 1.4 A at 115 VAC; 0.7 A at 230 VAC. Typical inrush current 35 A at 115 VAC; 70 A at 230 VAC. Setup / rise at full load 1500 / 60 ms at 230 VAC; 3000 / 60 ms at 115 VAC. Typical hold-up at full load 20 ms at 230 VAC; 20 ms at 115 VAC. Leakage current Less than 1 mA at 240 VAC. Power factor, typical 0.93 at 230 VAC and 0.96 at 115 VAC, at full load; built-in active PFC. Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Low input voltage requires load derating. Protection Overload: lower range At 110–150% of rated output power, the catalogue describes operation for more than 3 seconds followed by output shutdown. Short-circuit / overload: higher range Above 150% of rated power, constant-current limiting has automatic recovery within the first 3 seconds; after 3 seconds the output shuts down. Overvoltage 56–65 V; output shuts down, then re-power to recover. Overtemperature sensing 95 ±5°C, detected by TSW on power-switch heatsink. This is an internal sensing temperature, not an ambient rating. Overtemperature recovery Output shuts down and recovers automatically after temperature falls. The overload time description is a protection response. It does not extend the separately specified 3-second maximum peak-loading period. DC OK Relay Contact Relay closed Power supply on / DC OK. Relay open Power supply off / DC fail. Contact ratings, maximum 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A, for resistive loads, as listed in the specification. The function table also lists the 30 V / 1 A resistive rating. Connection TB2 pins 1 and 2 are the relay contact. They are separate from TB2 pin 3 (−V) and pin 4 (+V). The contact indicates status; it is not a specified powered logic-voltage output. Select the monitoring circuit within the applicable resistive-load contact rating. Cooling, Derating and Environment Cooling / orientation Free-air convection; the published temperature curves are for vertical mounting. Working ambient range -25 to +70°C, subject to the input and thermal conditions below. Continuous temperature curve The 48 V branch shows 100% load up to 60°C, then decreases along the plotted line to 75% at 70°C. Short-peak temperature curve The 48 V branch shows the 150% short-peak level up to 60°C, decreasing to 125% at 70°C. The 3-second limit and published absolute peak-power rating still apply. Input-voltage curve, 60 Hz The graph shows 90% load at 88 VAC, rising to 100% at 100 VAC. The 100% plateau continues through 264 VAC. Working humidity 20–95% RH, non-condensing. Storage −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration 10–500 Hz, 2G, 10 min/cycle and 60 min on each X, Y and Z axis; mounting compliance IEC60068-2-6. High-altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m, as specified by the catalogue footnote. Apply the input and temperature limits together. The maximum ambient temperature is not a full-load rating, and the short-peak curve must not be used as the continuous curve. Dimensions, Wiring and Installation Body size 40 × 125.2 × 113.5 mm (W × H × D), case 992A; general drawing tolerance ±1 mm. DIN rail compatibility TS-35/7.5 or TS-35/15; the mechanical drawing shows a 35 mm rail profile. Input terminal block TB1 pin 1: FG; pin 2: AC/N; pin 3: AC/L. Output terminal block TB2 pins 1,2: DC OK relay contact; pin 3: −V; pin 4: +V. Indication / adjustment The mechanical drawing identifies the DC OK indicator and +V ADJ output-voltage control. Recommended installation clearances For permanent full-power loading: 40 mm above, 20 mm below, and 5 mm on both left and right sides. When the adjacent device is a heat source, 15 mm clearance is recommended. Catalogue unit weight 670 g per unit, from the explicit PACKING reference. Full entry: 0.67 kg; 20 pcs / 14.4 kg / 1.0 CUFT. Carton gross mass is not the unit weight. Use the exact terminal numbering and rail-latch geometry on PDF page 5; connect FG protective earth and follow the supplied unit’s installation instructions and terminal markings. Rail compatibility does not mean that a rail is supplied. The assigned pages list no separately orderable MEAN WELL rail, bracket, cover or connector accessory code. Safety, Insulation and EMC Catalogue-listed safety approvals UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004. BSMI CNS15598-1 is also listed. Additional standards statement Meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC. Output–DC OK contact: 0.5 kVAC. Insulation resistance Greater than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. EMC emissions BS EN/EN55032 (CISPR32); BS EN/EN61204-3 Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936 Class B. EMC immunity and voltage-dip compliance BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020; SEMI F47 approved. The power supply is a component intended for final equipment. Reconfirm EMC compliance in the completed equipment; the component listings do not certify the whole installation. Reliability and Manufacturer Information MTBF reference 1764.6 K hours minimum under Telcordia SR-332 (Bellcore); 292.1 K hours minimum under MIL-HDBK-217F at 25°C. These are reliability references, not a guaranteed service life. Factory test / warranty The catalogue lists 100% full-load burn-in testing and a three-year warranty, subject to applicable manufacturer terms.

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MEAN WELL SDR-120-24 is a single-output industrial DIN rail power supply rated at 24 V DC, 5 A and 120 W. It combines an adjustable output, free-air convection and mounting on TS-35/7.5 or TS-35/15 rail. Built-in active PFC and a DC OK relay contact support industrial control installations. The specified 180 W peak is a short-duration capability, subject to the loading patterns and input/temperature curves below. Product Datasheet Download MEAN WELL SDR-120 Datasheet (PDF) The SDR-120 section is on PDF pages 4, 5, 6. Refer to the complete mechanical drawings and notes when planning installation. Model and DC Output Complete model SDR-120-24; SDR-120 catalogue revision 2025-06-09. The final code denotes 24 V nominal output. Continuous rating 24 V DC / 5 A / 120 W; output-current range 0–5 A. Voltage adjustment 24–28 V, using +V ADJ. Observe the model’s current and power limits when adjusting. Ripple and noise 100 mVp-p maximum; 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF termination capacitors. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 91% at the default 230 VAC input, rated-load and 25°C ambient test conditions. Use the published complete-model continuous and peak ratings; the series number and family-wide efficiency headline do not replace the individual model values. Peak Loading and Repetition Conditions Peak current / power 7.5 A / 180 W, for a maximum of 3 seconds. The catalogue describes this as 150% peak-load capability. Loading pattern 1 The published waveform alternates 120 W for 100 seconds with 180 W for 3 seconds. Loading pattern 2 The second waveform alternates 60 W for 15 seconds with 180 W for 3 seconds. These are the two specific loading patterns on PDF page 6, not permission to repeat the peak at an arbitrary duty cycle. Keep every peak within 3 seconds and apply the applicable peak-temperature curve and input derating. Continuous loading must follow the separate continuous curve. The 180 W peak does not replace the 120 W continuous rating, and overload protection is not a continuous operating mode. Input and Timing Input range 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Typical AC current 1.4 A at 115 VAC; 0.7 A at 230 VAC. Typical inrush current 35 A at 115 VAC; 70 A at 230 VAC. Setup / rise at full load 1500 / 60 ms at 230 VAC; 3000 / 60 ms at 115 VAC. Typical hold-up at full load 20 ms at 230 VAC; 20 ms at 115 VAC. Leakage current Less than 1 mA at 240 VAC. Power factor, typical 0.93 at 230 VAC and 0.96 at 115 VAC, at full load; built-in active PFC. Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Low input voltage requires load derating. Protection Overload: lower range At 110–150% of rated output power, the catalogue describes operation for more than 3 seconds followed by output shutdown. Short-circuit / overload: higher range Above 150% of rated power, constant-current limiting has automatic recovery within the first 3 seconds; after 3 seconds the output shuts down. Overvoltage 29–33 V; output shuts down, then re-power to recover. Overtemperature sensing 95 ±5°C, detected by TSW on power-switch heatsink. This is an internal sensing temperature, not an ambient rating. Overtemperature recovery Output shuts down and recovers automatically after temperature falls. The overload time description is a protection response. It does not extend the separately specified 3-second maximum peak-loading period. DC OK Relay Contact Relay closed Power supply on / DC OK. Relay open Power supply off / DC fail. Contact ratings, maximum 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A, for resistive loads, as listed in the specification. The function table also lists the 30 V / 1 A resistive rating. Connection TB2 pins 1 and 2 are the relay contact. They are separate from TB2 pin 3 (−V) and pin 4 (+V). The contact indicates status; it is not a specified powered logic-voltage output. Select the monitoring circuit within the applicable resistive-load contact rating. Cooling, Derating and Environment Cooling / orientation Free-air convection; the published temperature curves are for vertical mounting. Working ambient range -25 to +70°C, subject to the input and thermal conditions below. Continuous temperature curve The 24 V branch shows 100% load up to 60°C, then decreases along the plotted line to 75% at 70°C. Short-peak temperature curve The 24 V branch shows the 150% short-peak level up to 60°C, decreasing to 125% at 70°C. The 3-second limit and published absolute peak-power rating still apply. Input-voltage curve, 60 Hz The graph shows 90% load at 88 VAC, rising to 100% at 100 VAC. The 100% plateau continues through 264 VAC. Working humidity 20–95% RH, non-condensing. Storage −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration 10–500 Hz, 2G, 10 min/cycle and 60 min on each X, Y and Z axis; mounting compliance IEC60068-2-6. High-altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m, as specified by the catalogue footnote. Apply the input and temperature limits together. The maximum ambient temperature is not a full-load rating, and the short-peak curve must not be used as the continuous curve. Dimensions, Wiring and Installation Body size 40 × 125.2 × 113.5 mm (W × H × D), case 992A; general drawing tolerance ±1 mm. DIN rail compatibility TS-35/7.5 or TS-35/15; the mechanical drawing shows a 35 mm rail profile. Input terminal block TB1 pin 1: FG; pin 2: AC/N; pin 3: AC/L. Output terminal block TB2 pins 1,2: DC OK relay contact; pin 3: −V; pin 4: +V. Indication / adjustment The mechanical drawing identifies the DC OK indicator and +V ADJ output-voltage control. Recommended installation clearances For permanent full-power loading: 40 mm above, 20 mm below, and 5 mm on both left and right sides. When the adjacent device is a heat source, 15 mm clearance is recommended. Catalogue unit weight 670 g per unit, from the explicit PACKING reference. Full entry: 0.67 kg; 20 pcs / 14.4 kg / 1.0 CUFT. Carton gross mass is not the unit weight. Use the exact terminal numbering and rail-latch geometry on PDF page 5; connect FG protective earth and follow the supplied unit’s installation instructions and terminal markings. Rail compatibility does not mean that a rail is supplied. The assigned pages list no separately orderable MEAN WELL rail, bracket, cover or connector accessory code. Safety, Insulation and EMC Catalogue-listed safety approvals UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004. BSMI CNS15598-1 is also listed. Additional standards statement Meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC. Output–DC OK contact: 0.5 kVAC. Insulation resistance Greater than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. EMC emissions BS EN/EN55032 (CISPR32); BS EN/EN61204-3 Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936 Class B. EMC immunity and voltage-dip compliance BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020; SEMI F47 approved. The power supply is a component intended for final equipment. Reconfirm EMC compliance in the completed equipment; the component listings do not certify the whole installation. Reliability and Manufacturer Information MTBF reference 1764.6 K hours minimum under Telcordia SR-332 (Bellcore); 292.1 K hours minimum under MIL-HDBK-217F at 25°C. These are reliability references, not a guaranteed service life. Factory test / warranty The catalogue lists 100% full-load burn-in testing and a three-year warranty, subject to applicable manufacturer terms.

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MEAN WELL SDR-120-12 is a single-output industrial DIN rail power supply rated at 12 V DC, 10 A and 120 W. It combines an adjustable output, free-air convection and mounting on TS-35/7.5 or TS-35/15 rail. Built-in active PFC and a DC OK relay contact support industrial control installations. The specified 180 W peak is a short-duration capability, subject to the loading patterns and input/temperature curves below. Product Datasheet Download MEAN WELL SDR-120 Datasheet (PDF) The SDR-120 section is on PDF pages 4, 5, 6. Refer to the complete mechanical drawings and notes when planning installation. Model and DC Output Complete model SDR-120-12; SDR-120 catalogue revision 2025-06-09. The final code denotes 12 V nominal output. Continuous rating 12 V DC / 10 A / 120 W; output-current range 0–10 A. Voltage adjustment 12–14 V, using +V ADJ. Observe the model’s current and power limits when adjusting. Ripple and noise 100 mVp-p maximum; 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF termination capacitors. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 89% at the default 230 VAC input, rated-load and 25°C ambient test conditions. Use the published complete-model continuous and peak ratings; the series number and family-wide efficiency headline do not replace the individual model values. Peak Loading and Repetition Conditions Peak current / power 15 A / 180 W, for a maximum of 3 seconds. The catalogue describes this as 150% peak-load capability. Loading pattern 1 The published waveform alternates 120 W for 100 seconds with 180 W for 3 seconds. Loading pattern 2 The second waveform alternates 60 W for 15 seconds with 180 W for 3 seconds. These are the two specific loading patterns on PDF page 6, not permission to repeat the peak at an arbitrary duty cycle. Keep every peak within 3 seconds and apply the applicable peak-temperature curve and input derating. Continuous loading must follow the separate continuous curve. The 180 W peak does not replace the 120 W continuous rating, and overload protection is not a continuous operating mode. Input and Timing Input range 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Typical AC current 1.4 A at 115 VAC; 0.7 A at 230 VAC. Typical inrush current 35 A at 115 VAC; 70 A at 230 VAC. Setup / rise at full load 1500 / 60 ms at 230 VAC; 3000 / 60 ms at 115 VAC. Typical hold-up at full load 20 ms at 230 VAC; 20 ms at 115 VAC. Leakage current Less than 1 mA at 240 VAC. Power factor, typical 0.93 at 230 VAC and 0.96 at 115 VAC, at full load; built-in active PFC. Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Low input voltage requires load derating. Protection Overload: lower range At 110–150% of rated output power, the catalogue describes operation for more than 3 seconds followed by output shutdown. Short-circuit / overload: higher range Above 150% of rated power, constant-current limiting has automatic recovery within the first 3 seconds; after 3 seconds the output shuts down. Overvoltage 14–17 V; output shuts down, then re-power to recover. Overtemperature sensing 95 ±5°C, detected by TSW on power-switch heatsink. This is an internal sensing temperature, not an ambient rating. Overtemperature recovery Output shuts down and recovers automatically after temperature falls. The overload time description is a protection response. It does not extend the separately specified 3-second maximum peak-loading period. DC OK Relay Contact Relay closed Power supply on / DC OK. Relay open Power supply off / DC fail. Contact ratings, maximum 60 VDC / 0.3 A, 30 VDC / 1 A, or 30 VAC / 0.5 A, for resistive loads, as listed in the specification. The function table also lists the 30 V / 1 A resistive rating. Connection TB2 pins 1 and 2 are the relay contact. They are separate from TB2 pin 3 (−V) and pin 4 (+V). The contact indicates status; it is not a specified powered logic-voltage output. Select the monitoring circuit within the applicable resistive-load contact rating. Cooling, Derating and Environment Cooling / orientation Free-air convection; the published temperature curves are for vertical mounting. Working ambient range -25 to +70°C, subject to the input and thermal conditions below. Continuous temperature curve The 12 V branch shows 100% load up to 55°C, then decreases along the plotted line to 75% at 70°C. Short-peak temperature curve The 12 V branch shows the 150% short-peak level up to 55°C, decreasing to 125% at 70°C. The 3-second limit and published absolute peak-power rating still apply. Input-voltage curve, 60 Hz The graph shows 90% load at 88 VAC, rising to 100% at 100 VAC. The 100% plateau continues through 264 VAC. Working humidity 20–95% RH, non-condensing. Storage −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–50°C. Vibration 10–500 Hz, 2G, 10 min/cycle and 60 min on each X, Y and Z axis; mounting compliance IEC60068-2-6. High-altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m, as specified by the catalogue footnote. Apply the input and temperature limits together. The maximum ambient temperature is not a full-load rating, and the short-peak curve must not be used as the continuous curve. Dimensions, Wiring and Installation Body size 40 × 125.2 × 113.5 mm (W × H × D), case 992A; general drawing tolerance ±1 mm. DIN rail compatibility TS-35/7.5 or TS-35/15; the mechanical drawing shows a 35 mm rail profile. Input terminal block TB1 pin 1: FG; pin 2: AC/N; pin 3: AC/L. Output terminal block TB2 pins 1,2: DC OK relay contact; pin 3: −V; pin 4: +V. Indication / adjustment The mechanical drawing identifies the DC OK indicator and +V ADJ output-voltage control. Recommended installation clearances For permanent full-power loading: 40 mm above, 20 mm below, and 5 mm on both left and right sides. When the adjacent device is a heat source, 15 mm clearance is recommended. Catalogue unit weight 670 g per unit, from the explicit PACKING reference. Full entry: 0.67 kg; 20 pcs / 14.4 kg / 1.0 CUFT. Carton gross mass is not the unit weight. Use the exact terminal numbering and rail-latch geometry on PDF page 5; connect FG protective earth and follow the supplied unit’s installation instructions and terminal markings. Rail compatibility does not mean that a rail is supplied. The assigned pages list no separately orderable MEAN WELL rail, bracket, cover or connector accessory code. Safety, Insulation and EMC Catalogue-listed safety approvals UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004. BSMI CNS15598-1 is also listed. Additional standards statement Meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC. Output–DC OK contact: 0.5 kVAC. Insulation resistance Greater than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. EMC emissions BS EN/EN55032 (CISPR32); BS EN/EN61204-3 Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020; CNS15936 Class B. EMC immunity and voltage-dip compliance BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020; SEMI F47 approved. The power supply is a component intended for final equipment. Reconfirm EMC compliance in the completed equipment; the component listings do not certify the whole installation. Reliability and Manufacturer Information MTBF reference 1764.6 K hours minimum under Telcordia SR-332 (Bellcore); 292.1 K hours minimum under MIL-HDBK-217F at 25°C. These are reliability references, not a guaranteed service life. Factory test / warranty The catalogue lists 100% full-load burn-in testing and a three-year warranty, subject to applicable manufacturer terms.

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MEAN WELL SDR-75-48 is a single-output industrial DIN rail power supply rated at 48 V DC, 1.6 A and 76.8 W. It combines an adjustable output, free-air convection and mounting on TS-35/7.5 or TS-35/15 rail. The front drawing identifies a DC OK indicator and +V ADJ control. The specified 112.5 W peak is a short-duration capability, subject to the loading patterns and input/temperature curves below. Product Datasheet Download MEAN WELL SDR-75 Datasheet (PDF) The SDR-75 section is on PDF pages 1, 2, 3. Refer to the complete mechanical drawings and notes when planning installation. Model and DC Output Complete model SDR-75-48; SDR-75 catalogue revision 2025-06-09. The final code denotes 48 V nominal output. Continuous rating 48 V DC / 1.6 A / 76.8 W; output-current range 0–1.6 A. Voltage adjustment 48–55 V, using +V ADJ. Observe the model’s current and power limits when adjusting. Ripple and noise 120 mVp-p maximum; 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF termination capacitors. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 90% at the default 230 VAC input, rated-load and 25°C ambient test conditions. Use the published complete-model continuous and peak ratings; the series number and family-wide efficiency headline do not replace the individual model values. Peak Loading and Repetition Conditions Peak current / power 2.34 A / 112.5 W, for a maximum of 3 seconds. The catalogue describes this as 150% peak-load capability. Loading pattern 1 The published waveform alternates 75 W for 100 seconds with 112.5 W for 3 seconds. Loading pattern 2 The second waveform alternates 37.5 W for 15 seconds with 112.5 W for 3 seconds. These are the two specific loading patterns on PDF page 3, not permission to repeat the peak at an arbitrary duty cycle. Keep every peak within 3 seconds and apply the applicable peak-temperature curve and input derating. Continuous loading must follow the separate continuous curve. The SDR-75 diagrams label the baseline as 75 W or 37.5 W and the peak as 112.5 W. Retain those waveform values separately from this model’s published continuous rating; do not recalculate a larger peak from 150% of the model’s rounded rating. Input and Timing Input range 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Typical AC current 1.4 A at 115 VAC; 0.85 A at 230 VAC. Typical inrush current 30 A at 115 VAC; 50 A at 230 VAC. Setup / rise at full load 1500 / 60 ms at 230 VAC; 3000 / 60 ms at 115 VAC. Typical hold-up at full load 80 ms at 230 VAC; 20 ms at 115 VAC. Leakage current Less than 1 mA at 240 VAC. DC input connection The specification explicitly permits DC input with AC/L connected to DC positive and AC/N connected to DC negative. Switching-frequency reference 85 kHz, as marked in the block diagram. Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Low input voltage requires load derating. Protection Overload: lower range At 110–150% of rated output power, the catalogue describes operation for more than 3 seconds followed by output shutdown. Re-power to recover after shutdown. Short-circuit / overload: higher range At 150–170% of rated power, constant-current limiting has automatic recovery within the first 3 seconds; after 3 seconds the output shuts down. Re-power to recover after shutdown. Overvoltage 56–65 V; output shuts down, then re-power to recover. Overtemperature sensing 100 ±10°C, detected by RTH2 on main power transistor. This is an internal sensing temperature, not an ambient rating. Overtemperature recovery Output shuts down; after temperature falls, re-power to recover. The overload time description is a protection response. It does not extend the separately specified 3-second maximum peak-loading period. Cooling, Derating and Environment Cooling / orientation Free-air convection; the published temperature curves are for vertical mounting. Working ambient range -30 to +70°C, subject to the input and thermal conditions below. Low-temperature input condition The −30 to −25°C portion of the temperature graph is explicitly limited to 230 VAC input. Continuous temperature curve The 48 V branch shows 100% load up to 60°C, then decreases along the plotted line to 75% at 70°C. Short-peak temperature curve The 48 V branch shows the 150% short-peak level up to 60°C, decreasing to 125% at 70°C. The 3-second limit and published absolute peak-power rating still apply. Input-voltage curve, 60 Hz The graph shows 90% load at 88 VAC, rising to 100% at 100 VAC. The 100% plateau continues through 264 VAC. Working humidity 20–95% RH, non-condensing. Storage −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–60°C. Vibration 10–500 Hz, 2G, 10 min/cycle and 60 min on each X, Y and Z axis; mounting compliance IEC60068-2-6. High-altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m, as specified by the catalogue footnote. Apply the input and temperature limits together. The maximum ambient temperature is not a full-load rating, and the short-peak curve must not be used as the continuous curve. Dimensions, Wiring and Installation Body size 32 × 125.2 × 102 mm (W × H × D), case 221A; general drawing tolerance ±1 mm. DIN rail compatibility TS-35/7.5 or TS-35/15; the mechanical drawing shows a 35 mm rail profile. Input terminal block TB1 pin 1: FG; pin 2: AC/N or DC(−); pin 3: AC/L or DC(+). Output terminal block TB2 pins 1,2: −V; pins 3,4: +V. Indication / adjustment The mechanical drawing identifies the DC OK indicator and +V ADJ output-voltage control. Recommended installation clearances For permanent full-power loading: 40 mm above, 20 mm below, and 5 mm on both left and right sides. When the adjacent device is a heat source, 15 mm clearance is recommended. Catalogue unit weight 510 g per unit, from the explicit PACKING reference. Full entry: 0.51 kg; 28 pcs / 15.3 kg / 1.23 CUFT. Carton gross mass is not the unit weight. Use the exact terminal numbering and rail-latch geometry on PDF page 2; connect FG protective earth and follow the supplied unit’s installation instructions and terminal markings. Rail compatibility does not mean that a rail is supplied. The assigned pages list no separately orderable MEAN WELL rail, bracket, cover or connector accessory code. Safety, Insulation and EMC Catalogue-listed safety approvals UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004. Additional standards statement Design reference to GL; meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC. Insulation resistance Greater than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. EMC emissions BS EN/EN55032 (CISPR32); BS EN/EN61204-3 Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020. EMC immunity and voltage-dip compliance BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020; SEMI F47 approved. The power supply is a component intended for final equipment. Reconfirm EMC compliance in the completed equipment; the component listings do not certify the whole installation. Reliability and Manufacturer Information MTBF reference 2670.8 K hours minimum under Telcordia SR-332 (Bellcore); 479.8 K hours minimum under MIL-HDBK-217F at 25°C. These are reliability references, not a guaranteed service life. Factory test / warranty The catalogue lists 100% full-load burn-in testing and a three-year warranty, subject to applicable manufacturer terms.

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MEAN WELL SDR-75-24 is a single-output industrial DIN rail power supply rated at 24 V DC, 3.2 A and 76.8 W. It combines an adjustable output, free-air convection and mounting on TS-35/7.5 or TS-35/15 rail. The front drawing identifies a DC OK indicator and +V ADJ control. The specified 112.5 W peak is a short-duration capability, subject to the loading patterns and input/temperature curves below. Product Datasheet Download MEAN WELL SDR-75 Datasheet (PDF) The SDR-75 section is on PDF pages 1, 2, 3. Refer to the complete mechanical drawings and notes when planning installation. Model and DC Output Complete model SDR-75-24; SDR-75 catalogue revision 2025-06-09. The final code denotes 24 V nominal output. Continuous rating 24 V DC / 3.2 A / 76.8 W; output-current range 0–3.2 A. Voltage adjustment 24–28 V, using +V ADJ. Observe the model’s current and power limits when adjusting. Ripple and noise 100 mVp-p maximum; 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF termination capacitors. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 89% at the default 230 VAC input, rated-load and 25°C ambient test conditions. Use the published complete-model continuous and peak ratings; the series number and family-wide efficiency headline do not replace the individual model values. Peak Loading and Repetition Conditions Peak current / power 4.69 A / 112.5 W, for a maximum of 3 seconds. The catalogue describes this as 150% peak-load capability. Loading pattern 1 The published waveform alternates 75 W for 100 seconds with 112.5 W for 3 seconds. Loading pattern 2 The second waveform alternates 37.5 W for 15 seconds with 112.5 W for 3 seconds. These are the two specific loading patterns on PDF page 3, not permission to repeat the peak at an arbitrary duty cycle. Keep every peak within 3 seconds and apply the applicable peak-temperature curve and input derating. Continuous loading must follow the separate continuous curve. The SDR-75 diagrams label the baseline as 75 W or 37.5 W and the peak as 112.5 W. Retain those waveform values separately from this model’s published continuous rating; do not recalculate a larger peak from 150% of the model’s rounded rating. Input and Timing Input range 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Typical AC current 1.4 A at 115 VAC; 0.85 A at 230 VAC. Typical inrush current 30 A at 115 VAC; 50 A at 230 VAC. Setup / rise at full load 1500 / 60 ms at 230 VAC; 3000 / 60 ms at 115 VAC. Typical hold-up at full load 80 ms at 230 VAC; 20 ms at 115 VAC. Leakage current Less than 1 mA at 240 VAC. DC input connection The specification explicitly permits DC input with AC/L connected to DC positive and AC/N connected to DC negative. Switching-frequency reference 85 kHz, as marked in the block diagram. Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Low input voltage requires load derating. Protection Overload: lower range At 110–150% of rated output power, the catalogue describes operation for more than 3 seconds followed by output shutdown. Re-power to recover after shutdown. Short-circuit / overload: higher range At 150–170% of rated power, constant-current limiting has automatic recovery within the first 3 seconds; after 3 seconds the output shuts down. Re-power to recover after shutdown. Overvoltage 29–33 V; output shuts down, then re-power to recover. Overtemperature sensing 100 ±10°C, detected by RTH2 on main power transistor. This is an internal sensing temperature, not an ambient rating. Overtemperature recovery Output shuts down; after temperature falls, re-power to recover. The overload time description is a protection response. It does not extend the separately specified 3-second maximum peak-loading period. Cooling, Derating and Environment Cooling / orientation Free-air convection; the published temperature curves are for vertical mounting. Working ambient range -30 to +70°C, subject to the input and thermal conditions below. Low-temperature input condition The −30 to −25°C portion of the temperature graph is explicitly limited to 230 VAC input. Continuous temperature curve The 24 V branch shows 100% load up to 60°C, then decreases along the plotted line to 75% at 70°C. Short-peak temperature curve The 24 V branch shows the 150% short-peak level up to 60°C, decreasing to 125% at 70°C. The 3-second limit and published absolute peak-power rating still apply. Input-voltage curve, 60 Hz The graph shows 90% load at 88 VAC, rising to 100% at 100 VAC. The 100% plateau continues through 264 VAC. Working humidity 20–95% RH, non-condensing. Storage −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–60°C. Vibration 10–500 Hz, 2G, 10 min/cycle and 60 min on each X, Y and Z axis; mounting compliance IEC60068-2-6. High-altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m, as specified by the catalogue footnote. Apply the input and temperature limits together. The maximum ambient temperature is not a full-load rating, and the short-peak curve must not be used as the continuous curve. Dimensions, Wiring and Installation Body size 32 × 125.2 × 102 mm (W × H × D), case 221A; general drawing tolerance ±1 mm. DIN rail compatibility TS-35/7.5 or TS-35/15; the mechanical drawing shows a 35 mm rail profile. Input terminal block TB1 pin 1: FG; pin 2: AC/N or DC(−); pin 3: AC/L or DC(+). Output terminal block TB2 pins 1,2: −V; pins 3,4: +V. Indication / adjustment The mechanical drawing identifies the DC OK indicator and +V ADJ output-voltage control. Recommended installation clearances For permanent full-power loading: 40 mm above, 20 mm below, and 5 mm on both left and right sides. When the adjacent device is a heat source, 15 mm clearance is recommended. Catalogue unit weight 510 g per unit, from the explicit PACKING reference. Full entry: 0.51 kg; 28 pcs / 15.3 kg / 1.23 CUFT. Carton gross mass is not the unit weight. Use the exact terminal numbering and rail-latch geometry on PDF page 2; connect FG protective earth and follow the supplied unit’s installation instructions and terminal markings. Rail compatibility does not mean that a rail is supplied. The assigned pages list no separately orderable MEAN WELL rail, bracket, cover or connector accessory code. Safety, Insulation and EMC Catalogue-listed safety approvals UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004. Additional standards statement Design reference to GL; meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC. Insulation resistance Greater than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. EMC emissions BS EN/EN55032 (CISPR32); BS EN/EN61204-3 Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020. EMC immunity and voltage-dip compliance BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020; SEMI F47 approved. The power supply is a component intended for final equipment. Reconfirm EMC compliance in the completed equipment; the component listings do not certify the whole installation. Reliability and Manufacturer Information MTBF reference 2670.8 K hours minimum under Telcordia SR-332 (Bellcore); 479.8 K hours minimum under MIL-HDBK-217F at 25°C. These are reliability references, not a guaranteed service life. Factory test / warranty The catalogue lists 100% full-load burn-in testing and a three-year warranty, subject to applicable manufacturer terms.

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MEAN WELL SDR-75-12 is a single-output industrial DIN rail power supply rated at 12 V DC, 6.3 A and 75.6 W. It combines an adjustable output, free-air convection and mounting on TS-35/7.5 or TS-35/15 rail. The front drawing identifies a DC OK indicator and +V ADJ control. The specified 112.5 W peak is a short-duration capability, subject to the loading patterns and input/temperature curves below. Product Datasheet Download MEAN WELL SDR-75 Datasheet (PDF) The SDR-75 section is on PDF pages 1, 2, 3. Refer to the complete mechanical drawings and notes when planning installation. Model and DC Output Complete model SDR-75-12; SDR-75 catalogue revision 2025-06-09. The final code denotes 12 V nominal output. Continuous rating 12 V DC / 6.3 A / 75.6 W; output-current range 0–6.3 A. Voltage adjustment 12–14 V, using +V ADJ. Observe the model’s current and power limits when adjusting. Ripple and noise 100 mVp-p maximum; 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF termination capacitors. Voltage tolerance ±1.0%, including setup tolerance, line regulation and load regulation. Line / load regulation ±0.5% / ±1.0%, respectively. Typical efficiency 88.5% at the default 230 VAC input, rated-load and 25°C ambient test conditions. Use the published complete-model continuous and peak ratings; the series number and family-wide efficiency headline do not replace the individual model values. Peak Loading and Repetition Conditions Peak current / power 9.375 A / 112.5 W, for a maximum of 3 seconds. The catalogue describes this as 150% peak-load capability. Loading pattern 1 The published waveform alternates 75 W for 100 seconds with 112.5 W for 3 seconds. Loading pattern 2 The second waveform alternates 37.5 W for 15 seconds with 112.5 W for 3 seconds. These are the two specific loading patterns on PDF page 3, not permission to repeat the peak at an arbitrary duty cycle. Keep every peak within 3 seconds and apply the applicable peak-temperature curve and input derating. Continuous loading must follow the separate continuous curve. The SDR-75 diagrams label the baseline as 75 W or 37.5 W and the peak as 112.5 W. Retain those waveform values separately from this model’s published continuous rating; do not recalculate a larger peak from 150% of the model’s rounded rating. Input and Timing Input range 88–264 VAC or 124–370 VDC; AC frequency 47–63 Hz. Typical AC current 1.4 A at 115 VAC; 0.85 A at 230 VAC. Typical inrush current 30 A at 115 VAC; 50 A at 230 VAC. Setup / rise at full load 1500 / 60 ms at 230 VAC; 3000 / 60 ms at 115 VAC. Typical hold-up at full load 80 ms at 230 VAC; 20 ms at 115 VAC. Leakage current Less than 1 mA at 240 VAC. DC input connection The specification explicitly permits DC input with AC/L connected to DC positive and AC/N connected to DC negative. Switching-frequency reference 85 kHz, as marked in the block diagram. Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Low input voltage requires load derating. Protection Overload: lower range At 110–150% of rated output power, the catalogue describes operation for more than 3 seconds followed by output shutdown. Re-power to recover after shutdown. Short-circuit / overload: higher range At 150–170% of rated power, constant-current limiting has automatic recovery within the first 3 seconds; after 3 seconds the output shuts down. Re-power to recover after shutdown. Overvoltage 14–17 V; output shuts down, then re-power to recover. Overtemperature sensing 100 ±10°C, detected by RTH2 on main power transistor. This is an internal sensing temperature, not an ambient rating. Overtemperature recovery Output shuts down; after temperature falls, re-power to recover. The overload time description is a protection response. It does not extend the separately specified 3-second maximum peak-loading period. Cooling, Derating and Environment Cooling / orientation Free-air convection; the published temperature curves are for vertical mounting. Working ambient range -30 to +70°C, subject to the input and thermal conditions below. Low-temperature input condition The −30 to −25°C portion of the temperature graph is explicitly limited to 230 VAC input. Continuous temperature curve The 12 V branch shows 100% load up to 55°C, then decreases along the plotted line to 75% at 70°C. Short-peak temperature curve The 12 V branch shows the 150% short-peak level up to 55°C, decreasing to 125% at 70°C. The 3-second limit and published absolute peak-power rating still apply. Input-voltage curve, 60 Hz The graph shows 90% load at 88 VAC, rising to 100% at 100 VAC. The 100% plateau continues through 264 VAC. Working humidity 20–95% RH, non-condensing. Storage −40 to +85°C; 10–95% RH. Temperature coefficient ±0.03%/°C over 0–60°C. Vibration 10–500 Hz, 2G, 10 min/cycle and 60 min on each X, Y and Z axis; mounting compliance IEC60068-2-6. High-altitude derating For this fanless model, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m, as specified by the catalogue footnote. Apply the input and temperature limits together. The maximum ambient temperature is not a full-load rating, and the short-peak curve must not be used as the continuous curve. Dimensions, Wiring and Installation Body size 32 × 125.2 × 102 mm (W × H × D), case 221A; general drawing tolerance ±1 mm. DIN rail compatibility TS-35/7.5 or TS-35/15; the mechanical drawing shows a 35 mm rail profile. Input terminal block TB1 pin 1: FG; pin 2: AC/N or DC(−); pin 3: AC/L or DC(+). Output terminal block TB2 pins 1,2: −V; pins 3,4: +V. Indication / adjustment The mechanical drawing identifies the DC OK indicator and +V ADJ output-voltage control. Recommended installation clearances For permanent full-power loading: 40 mm above, 20 mm below, and 5 mm on both left and right sides. When the adjacent device is a heat source, 15 mm clearance is recommended. Catalogue unit weight 510 g per unit, from the explicit PACKING reference. Full entry: 0.51 kg; 28 pcs / 15.3 kg / 1.23 CUFT. Carton gross mass is not the unit weight. Use the exact terminal numbering and rail-latch geometry on PDF page 2; connect FG protective earth and follow the supplied unit’s installation instructions and terminal markings. Rail compatibility does not mean that a rail is supplied. The assigned pages list no separately orderable MEAN WELL rail, bracket, cover or connector accessory code. Safety, Insulation and EMC Catalogue-listed safety approvals UL508; TUV BS EN/EN62368-1; AS/NZS62368.1; EAC TP TC004. Additional standards statement Design reference to GL; meets BS EN/EN60204-1. Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.5 kVAC. Insulation resistance Greater than 100 MΩ for input–output, input–FG and output–FG at 500 VDC, 25°C and 70% RH. EMC emissions BS EN/EN55032 (CISPR32); BS EN/EN61204-3 Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020. EMC immunity and voltage-dip compliance BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-2 (BS EN/EN50082-2); BS EN/EN61204-3, heavy-industry level; EAC TP TC020; SEMI F47 approved. The power supply is a component intended for final equipment. Reconfirm EMC compliance in the completed equipment; the component listings do not certify the whole installation. Reliability and Manufacturer Information MTBF reference 2670.8 K hours minimum under Telcordia SR-332 (Bellcore); 479.8 K hours minimum under MIL-HDBK-217F at 25°C. These are reliability references, not a guaranteed service life. Factory test / warranty The catalogue lists 100% full-load burn-in testing and a three-year warranty, subject to applicable manufacturer terms.

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