MEAN WELL NMD-240 is a dual-output power module for NMP650 and NMP1K2 modular power systems. Configuration code D provides two 30 V outputs, each adjustable from 3 to 30 V with a 0–5 A load range and 150 W maximum channel power. The two channels together are limited to 240 W. Each output has its own local ON/OFF, DC OK signal and adjustment; a compatible NMP front end is required. Product Datasheet Download MEAN WELL NMD-240 Datasheet (PDF) The NMD-240 section is on PDF pages 1, 2, 3, 4, 6, 8, 12, 13, 14, 16. Refer to the complete mechanical drawings and notes when planning installation. Dual-Output Ratings and Combined Load Configuration code D. V1 rated output voltage 30 V; independently adjustable from 3 to 30 V using VR61. V1 rated output current, maximum 5 A; load range 0–5 A. V1 rated output power, maximum 150 W. V2 rated output voltage 30 V; independently adjustable from 3 to 30 V using VR71. V2 rated output current, maximum 5 A; load range 0–5 A. V2 rated output power, maximum 150 W. Combined output power, maximum 240 W for V1 + V2; the two 150 W channel limits cannot be used simultaneously. Ripple and noise, maximum V1: 250 mVp-p; V2: 250 mVp-p. Voltage tolerance V1 and V2: ±2.0% maximum; includes set-up, line and load regulation. Line regulation V1 and V2: ±0.5%. Load regulation V1 and V2: ±1.0%. At every voltage setting, respect each channel's voltage, current and power limits, the 240 W combined limit and the front-end total. Use the separate below-7 V and at-least-7 V current derating curves. NMP System Integration Compatible front ends NMP650: four module slots and 650 W maximum total; NMP1K2: six slots and 1200 W maximum total. Mains connection The NMP front end accepts 90–264 VAC or 120–370 VDC; AC frequency 47–63 Hz. Connect this output module through the compatible front end, not directly to mains. Cooling and format The NMP system uses a 1U low-profile chassis and temperature-controlled fans. Preserve the host airflow and apply both input and temperature derating. Global and local controls Global control acts on the complete NMP supply; local controls act on module outputs. The global and local ON/OFF polarities are different. The assembled power supply, output modules, mating parts and selected interconnections must match the required configuration. The sum of the connected module loads must remain within the front-end power limit as well as each module and channel limit. The catalogue lists a five-year warranty for the NMP series. Medical diagnostic equipment, test and measurement, communications and automation are application examples; suitability depends on the complete equipment design. Front-End Auxiliary Supply and Global Signals On the NMP front end, CN32 pins 1/2 provide +5V-AUX-P at 1.5 A maximum for NMP650 or 2 A maximum for NMP1K2; pins 3/4 are GND-P. The auxiliary tolerance is ±10% and ripple is 50 mVp-p maximum. CN32 pin 6 is RC1: short to GND-P for global ON, open for OFF. When global remote control is unused, fit the shorting connector supplied with the NMP power supply, linking pin 6 to pin 3; without that link the supply has no output. This is a front-end accessory, not a separate module auxiliary-output rating. CN32 pin 5 is the T-Alarm TTL output, referenced to pins 3/4, with 10 mA maximum source current. Normal temperature gives 0–0.5 V. Above the alarm threshold it gives 4.5–5.5 V while output remains on; above the safe-temperature limit the output turns off. The temperature-controlled fan and its alarm function belong to the front end. Independent Local Controls, Indicators and Protection V1 local remote ON/OFF CN82 pin 3 (RC2) to pin 1 (GND1 / -V1): open = ON; short = OFF. V2 local remote ON/OFF CN82 pin 4 (RC3) to pin 2 (GND2 / -V2): open = ON; short = OFF. V1 DC OK CN82 pin 5 relative to pin 1: 4.5–5.5 V when ON, 0–0.5 V when OFF; source 10 mA maximum. V2 DC OK CN82 pin 6 relative to pin 2: 4.5–5.5 V when ON, 0–0.5 V when OFF; source 10 mA maximum. Local adjustments and LEDs V1: VR61 and LD61; V2: VR71 and LD71. Overload protection V1 and V2: 105–125% rated output power; constant-current limiting. Overvoltage protection V1 and V2: 31–37 V; output shutdown, re-power to recover. Overtemperature protection V1 and V2: output shutdown, automatic recovery after temperature falls. NMD-240 uses independent local output adjustment, ON/OFF and DC OK for each channel. The NMS-specific external PV/PC programming, remote-sense, current-sharing and 5 V / 10 mA Vcc2 functions do not apply to this dual-output module. Timing and Measurement Conditions Set-up / rise time 1500 / 60 ms at full load. Typical hold-up time 16 ms at 230 VAC and 75% of the specified assembled-system load; 10 ms at 230 VAC and full specified assembled-system load. General test conditions 230 VAC input, rated load and 25°C ambient unless a parameter states otherwise. Ripple measurement 20 MHz bandwidth, 12-inch twisted pair, with 0.1 µF and 47 µF capacitors in parallel at the termination. Tolerance definition Includes set-up tolerance, line regulation and load regulation. The hold-up values apply to the catalogue's reference combinations: NMP650 with one each of C/E/H/K at 650 W maximum, or NMP1K2 with C×1, E×1, H×2 and K×2 at 1200 W maximum. The front-end efficiency and hold-up performance depend on the installed module combination. Temperature, Input Derating and Environment Input-voltage load curve At 60 Hz: 70% load at 90 VAC, rising to 100% at 110 VAC; the full-load plateau extends to 264 VAC. Apply this together with the temperature curve. Operating humidity 20–90% RH, non-condensing. Storage conditions -40°C to +85°C; 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C from 0°C to +50°C. Vibration 10–500 Hz, 2 G, 10-minute cycle; 60 minutes each along X, Y and Z. For NMD-240 outputs set to at least 7 V, the horizontal-installation current curve permits 100% from -30°C to +50°C at 230 VAC, or from -25°C to +50°C at 115 VAC. For outputs below 7 V, the plotted 100% current range begins at -15°C and ends at +50°C. Both voltage regions derate to 60% at +70°C with 230 VAC, or 50% at +70°C with 115 VAC. Apply the curve to each channel and keep combined power within 240 W. Above 2000 m, the catalogue requires an ambient-temperature reduction of 5°C per 1000 m for fan-cooled models, or 3.5°C per 1000 m for fanless models. Use the fan-cooled requirement for the NMP installation. This thermal note does not establish an additional maximum operating altitude. Dimensions, Weight and Output Connections Module dimensions, L × W × H 118.5 × 37.9 × 18 mm, as listed in the specification table; allow the terminal and connector clearances shown on physical page 12. Typical single-module weight 152 g (0.152 kg). Packing reference 72 modules / 11.9 kg / 1.04 CUFT; this is the carton quantity and mass. Output terminal order From top to bottom in the page 12 front view: +V1 orange, -V1 gray, +V2 orange, -V2 gray. Output conductor range 20–26 AWG. Wire strip length 10 mm. Independent channel returns GND1 is referenced to -V1; GND2 is referenced to -V2. Use the corresponding reference for each control and status signal. CN82 Control Connector Module connector HRS DF11-10DP-2DS or equivalent. Mating housing HRS DF11-10DS or equivalent. Contact series HRS DF11-**SC or equivalent, as printed; select the complete contact variant for the intended conductor and connector. Pin 1: GND1 V1 signal reference, -V1. Pin 2: GND2 V2 signal reference, -V2. Pin 3: RC2 V1: open to pin 1 gives ON; short gives OFF. Pin 4: RC3 V2: open to pin 2 gives ON; short gives OFF. Pin 5: DC OK1 V1 ON: 4.5–5.5 V; OFF: 0–0.5 V; source 10 mA maximum, referenced to pin 1. Pin 6: DC OK2 V2 ON: 4.5–5.5 V; OFF: 0–0.5 V; source 10 mA maximum, referenced to pin 2. Pin 7: NC No connection. Pin 8: NC No connection. Pin 9: NC No connection. Pin 10: NC No connection. The mating housing and contact references identify compatible connection parts; they are not a statement that an additional mating cable or contact set is included with this module. Configuration and Connection Accessories Unused output slot BLANK-NMS240 is the catalogue's blank-slot assembly; select it for unused NMP module positions and confirm supply details with MEAN WELL. Front-end CN32 connector HRS DF11-6DP-2DS or equivalent; mating housing HRS DF11-6DS or equivalent; contact reference HRS DF11-**SC or equivalent. Select the required module configuration with the compatible NMP650 or NMP1K2 front end. The catalogue's configuration examples describe assembled systems and do not mean that every module, blank-slot assembly or connection accessory accompanies this individual module. Parallel or series connection accessories are supplied by selection through MEAN WELL. Specify the required configuration and obtain its compatible connection arrangement before installation. Safety and Medical Equipment Integration The NMD module is integrated into the NMP system covered by the following catalogue safety information. The catalogue lists IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No.60601-1:2014+A2; IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No.62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; and EAC TP TC 004. For the assembled NMP supply, primary-to-secondary isolation is 2 × MOPP and primary-to-earth isolation is 1 × MOPP. The catalogue gives touch current below 100 µA and earth leakage below 400 µA at 264 VAC, with I/O 4 kVAC, I/FG 2 kVAC and O/FG 0.5 kVAC withstand tests. Insulation resistance is 100 MΩ at 500 VDC, 25°C and 70% RH. The series is suitable for consideration in BF-type medical applications. These component-level properties do not certify the finished equipment as BF or establish compliance for an assembled medical system; insulation, enclosure, patient connections, leakage and EMC must be assessed in the final equipment. The NMP catalogue lists EN/BS EN 55032 and 55011 Class B conducted and radiated emissions, EN/BS EN 61000-3-2 Class A harmonics and EN/BS EN 61000-3-3 flicker. Immunity is referenced to EN/BS EN 60601-1-2, EN/BS EN 55035 and SEMI F47. Its test magnitudes include ESD 15 kV air/8 kV contact, RF field 10 V/m, EFT 2 kV, surge 4 kV line-to-FG/2 kV line-to-line, conducted RF 3 V and power-frequency magnetic field 30 A/m; dips include 100% for one period and 30% for 25 periods, with 100% interruption for 250 periods. The published EMC tests used a 360 × 720 × 1 mm metal plate. The supply is a component for installation in final equipment, whose complete EMC compliance must be reconfirmed.

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MEAN WELL NMS-240-48 is a single-output power module for the NMP650 and NMP1K2 modular power systems. Configuration code K provides 48 V, a 0–5 A load range and 240 W rated output, subject to the module limits, the front-end total and derating. It supports local ON/OFF, DC OK, remote sense, voltage/current programming and current sharing. A compatible NMP front end is required. Product Datasheet Download MEAN WELL NMS-240 Datasheet (PDF) The NMS-240 section is on PDF pages 1, 2, 3, 4, 5, 7, 8, 11, 13, 14, 15, 16, 17. Refer to the complete mechanical drawings and notes when planning installation. Model-Specific DC Output Configuration code K Rated output voltage 48 V. Rated output current 5 A; permitted load range 0–5 A. Rated output power 240 W. Ripple and noise, maximum 250 mVp-p. Voltage adjustment / PV range 30–55 V. Voltage tolerance ±1.0%; includes set-up, line and load regulation. Line regulation ±0.2%. Load regulation ±0.5%. Output voltage, current and power limits apply together. Raising the set voltage does not increase the permitted module power; the assembled NMP supply must also remain within its own total output limit. NMP System Integration Compatible front ends NMP650: four module slots and 650 W maximum total; NMP1K2: six slots and 1200 W maximum total. Mains connection The NMP front end accepts 90–264 VAC or 120–370 VDC; AC frequency 47–63 Hz. Connect this output module through the compatible front end, not directly to mains. Cooling and format The NMP system uses a 1U low-profile chassis and temperature-controlled fans. Preserve the host airflow and apply both input and temperature derating. Global and local controls Global control acts on the complete NMP supply; local controls act on module outputs. The global and local ON/OFF polarities are different. The assembled power supply, output modules, mating parts and selected interconnections must match the required configuration. The sum of the connected module loads must remain within the front-end power limit as well as each module and channel limit. The catalogue lists a five-year warranty for the NMP series. Medical diagnostic equipment, test and measurement, communications and automation are application examples; suitability depends on the complete equipment design. Front-End Auxiliary Supply and Global Signals On the NMP front end, CN32 pins 1/2 provide +5V-AUX-P at 1.5 A maximum for NMP650 or 2 A maximum for NMP1K2; pins 3/4 are GND-P. The auxiliary tolerance is ±10% and ripple is 50 mVp-p maximum. CN32 pin 6 is RC1: short to GND-P for global ON, open for OFF. When global remote control is unused, fit the shorting connector supplied with the NMP power supply, linking pin 6 to pin 3; without that link the supply has no output. This is a front-end accessory, not a separate module auxiliary-output rating. CN32 pin 5 is the T-Alarm TTL output, referenced to pins 3/4, with 10 mA maximum source current. Normal temperature gives 0–0.5 V. Above the alarm threshold it gives 4.5–5.5 V while output remains on; above the safe-temperature limit the output turns off. The temperature-controlled fan and its alarm function belong to the front end. Voltage Programming, Current Programming and Remote Sense Set the local output using VR60. For external PV control, connect the control voltage to CN81 pin 8, referenced to pin 1 or 2. The programmable voltage range is the same as the model's voltage-adjustment range. The page 14 transfer chart is non-linear and includes a separate low-range region for the 12 V E-code module; use that chart and the model-specific voltage limits. Its 100% output reference is shown at a 5 V control signal. For PC control, connect the external control voltage to CN81 pin 7, referenced to pin 1 or 2. The specified constant-current setting range is 40–100% of rated current; the non-linear chart shows 40% at 1.8 V and 100% at 5 V. The additional 115% typical OLP point is a protection reference, not an increased continuous-output rating. PC control must not be used during parallel operation. Remote sense compensates up to 0.5 V of load-wiring drop. Connect CN81 pin 9 (+S) to the positive load point and pin 10 (-S) to the negative load point, with the sense lines twisted as a pair. Keep the sensed output and load within the module ratings. Local Control, Auxiliary Output and Protection Local remote ON/OFF CN81 pin 3 (RC2) to pin 1 or 2 (GND): open = output ON; short = output OFF. Module auxiliary Vcc2 5 V, 10 mA maximum; ±10% tolerance; 50 mVp-p maximum ripple. Available on CN81 pin 4. DC OK and indicator CN81 pin 5: 4.5–5.5 V when output is ON; 0–0.5 V when OFF. Maximum source current 10 mA; reference pin 1 or 2. The module indicator is LD60. Overload 105–125% of rated output power; constant-current limiting. Overvoltage 57–66 V; shut down output and re-power to recover. Overtemperature Shut down output; automatic recovery after temperature falls. Current Sharing and Parallel Operation For compatible NMS modules, connect CN81 pin 6 (CS) and the pin 1/2 signal grounds in parallel as shown in the catalogue. Set their output-voltage differences to less than 0.2 V, and use short, large-diameter output wiring to the load. A maximum of four NMS modules is supported in NMP650 and six in NMP1K2. The total current must not exceed the sum of the participating module current ratings, and total output power must remain within the NMP650 650 W or NMP1K2 1200 W limit. Apply module, wiring and thermal limits as well. Below 10% of rated load, only the master may operate while slave modules enter standby. For C-code 5 V and E-code 12 V modules in current-sharing operation, short-circuit protection may operate in hiccup or constant-current-limiting mode. Ripple can be higher than the single-module specification at light load. Switch all parallel modules ON/OFF together; their LED and DC OK states must follow together. Do not use PC current programming in parallel. NMP650 accepts catalogue parallel-connection codes 00, 01, 02, 03, 06, 07, 10 and 16; NMP1K2 provides codes 00–31, with the actual slot grouping defined by the configuration table. Timing and Measurement Conditions Set-up / rise time 1500 / 60 ms at full load. Typical hold-up time 16 ms at 230 VAC and 75% of the specified assembled-system load; 10 ms at 230 VAC and full specified assembled-system load. General test conditions 230 VAC input, rated load and 25°C ambient unless a parameter states otherwise. Ripple measurement 20 MHz bandwidth, 12-inch twisted pair, with 0.1 µF and 47 µF capacitors in parallel at the termination. Tolerance definition Includes set-up tolerance, line regulation and load regulation. The hold-up values apply to the catalogue's reference combinations: NMP650 with one each of C/E/H/K at 650 W maximum, or NMP1K2 with C×1, E×1, H×2 and K×2 at 1200 W maximum. The front-end efficiency and hold-up performance depend on the installed module combination. Temperature, Input Derating and Environment Input-voltage load curve At 60 Hz: 70% load at 90 VAC, rising to 100% at 110 VAC; the full-load plateau extends to 264 VAC. Apply this together with the temperature curve. Operating humidity 20–90% RH, non-condensing. Storage conditions -40°C to +85°C; 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C from 0°C to +50°C. Vibration 10–500 Hz, 2 G, 10-minute cycle; 60 minutes each along X, Y and Z. For horizontal installation, the NMP/NMS load curve permits 100% from -30°C to +50°C at 230 VAC, or from -25°C to +50°C at 115 VAC. Above +50°C derate to 60% at +70°C with 230 VAC, or 50% at +70°C with 115 VAC. The -30°C to below -25°C region is marked 230 VAC only. Above 2000 m, the catalogue requires an ambient-temperature reduction of 5°C per 1000 m for fan-cooled models, or 3.5°C per 1000 m for fanless models. Use the fan-cooled requirement for the NMP installation. This thermal note does not establish an additional maximum operating altitude. Dimensions, Weight and DC Terminals Module dimensions, L × W × H 118.5 × 37.9 × 18 mm, as listed in the specification table; allow connector and terminal clearances shown in the mechanical drawing. Typical single-module weight 142 g (0.142 kg). Packing reference 72 modules / 11.2 kg / 1.04 CUFT; this is the carton quantity and mass. DC output terminals +V and -V screw terminals; recommended screw M3.5, maximum mounting torque 10 kgf·cm and maximum penetration depth 10 mm. Mechanical reference Use physical page 11 for module geometry, VR60, LD60 and CN81 orientation. The terminal limits are distinct from the front-end chassis mounting limits. CN81 Control Connector Module connector HRS DF11-10DP-2DS or equivalent. Mating housing HRS DF11-10DS or equivalent. Contact series HRS DF11-**SC or equivalent, as printed; select the complete contact variant for the intended conductor and connector. Pin 1: GND Signal reference. Pin 2: GND Signal reference. Pin 3: RC2 Open to pin 1 or 2: output ON; short: output OFF. Pin 4: Vcc2 4.5–5.5 V, 10 mA maximum, referenced to pin 1 or 2. Pin 5: DC OK ON: 4.5–5.5 V; OFF: 0–0.5 V; source 10 mA maximum, referenced to pin 1 or 2. Pin 6: CS Current sharing, referenced to pin 1 or 2. Pin 7: PC Constant-current programming, referenced to pin 1 or 2. Pin 8: PV Output-voltage programming, referenced to pin 1 or 2. Pin 9: +S Positive remote sense. Pin 10: -S Negative remote sense. The mating housing and contact references identify compatible connection parts; they are not a statement that an additional mating cable or contact set is included with this module. Configuration and Connection Accessories Unused output slot BLANK-NMS240 is the catalogue's blank-slot assembly; select it for unused NMP module positions and confirm supply details with MEAN WELL. Front-end CN32 connector HRS DF11-6DP-2DS or equivalent; mating housing HRS DF11-6DS or equivalent; contact reference HRS DF11-**SC or equivalent. Select the required module configuration with the compatible NMP650 or NMP1K2 front end. The catalogue's configuration examples describe assembled systems and do not mean that every module, blank-slot assembly or connection accessory accompanies this individual module. Parallel or series connection accessories are supplied by selection through MEAN WELL. Specify the required configuration and obtain its compatible connection arrangement before installation. Safety and Medical Equipment Integration The NMS module safety table and the NMP system table list the following catalogue standards. The catalogue lists IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No.60601-1:2014+A2; IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No.62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; and EAC TP TC 004. For the assembled NMP supply, primary-to-secondary isolation is 2 × MOPP and primary-to-earth isolation is 1 × MOPP. The catalogue gives touch current below 100 µA and earth leakage below 400 µA at 264 VAC, with I/O 4 kVAC, I/FG 2 kVAC and O/FG 0.5 kVAC withstand tests. Insulation resistance is 100 MΩ at 500 VDC, 25°C and 70% RH. The series is suitable for consideration in BF-type medical applications. These component-level properties do not certify the finished equipment as BF or establish compliance for an assembled medical system; insulation, enclosure, patient connections, leakage and EMC must be assessed in the final equipment. The NMP catalogue lists EN/BS EN 55032 and 55011 Class B conducted and radiated emissions, EN/BS EN 61000-3-2 Class A harmonics and EN/BS EN 61000-3-3 flicker. Immunity is referenced to EN/BS EN 60601-1-2, EN/BS EN 55035 and SEMI F47. Its test magnitudes include ESD 15 kV air/8 kV contact, RF field 10 V/m, EFT 2 kV, surge 4 kV line-to-FG/2 kV line-to-line, conducted RF 3 V and power-frequency magnetic field 30 A/m; dips include 100% for one period and 30% for 25 periods, with 100% interruption for 250 periods. The published EMC tests used a 360 × 720 × 1 mm metal plate. The supply is a component for installation in final equipment, whose complete EMC compliance must be reconfirmed.

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MEAN WELL NMS-240-24 is a single-output power module for the NMP650 and NMP1K2 modular power systems. Configuration code H provides 24 V, a 0–10 A load range and 240 W rated output, subject to the module limits, the front-end total and derating. It supports local ON/OFF, DC OK, remote sense, voltage/current programming and current sharing. A compatible NMP front end is required. Product Datasheet Download MEAN WELL NMS-240 Datasheet (PDF) The NMS-240 section is on PDF pages 1, 2, 3, 4, 5, 7, 8, 11, 13, 14, 15, 16, 17. Refer to the complete mechanical drawings and notes when planning installation. Model-Specific DC Output Configuration code H Rated output voltage 24 V. Rated output current 10 A; permitted load range 0–10 A. Rated output power 240 W. Ripple and noise, maximum 150 mVp-p. Voltage adjustment / PV range 15–30 V. Voltage tolerance ±1.0%; includes set-up, line and load regulation. Line regulation ±0.2%. Load regulation ±0.5%. Output voltage, current and power limits apply together. Raising the set voltage does not increase the permitted module power; the assembled NMP supply must also remain within its own total output limit. NMP System Integration Compatible front ends NMP650: four module slots and 650 W maximum total; NMP1K2: six slots and 1200 W maximum total. Mains connection The NMP front end accepts 90–264 VAC or 120–370 VDC; AC frequency 47–63 Hz. Connect this output module through the compatible front end, not directly to mains. Cooling and format The NMP system uses a 1U low-profile chassis and temperature-controlled fans. Preserve the host airflow and apply both input and temperature derating. Global and local controls Global control acts on the complete NMP supply; local controls act on module outputs. The global and local ON/OFF polarities are different. The assembled power supply, output modules, mating parts and selected interconnections must match the required configuration. The sum of the connected module loads must remain within the front-end power limit as well as each module and channel limit. The catalogue lists a five-year warranty for the NMP series. Medical diagnostic equipment, test and measurement, communications and automation are application examples; suitability depends on the complete equipment design. Front-End Auxiliary Supply and Global Signals On the NMP front end, CN32 pins 1/2 provide +5V-AUX-P at 1.5 A maximum for NMP650 or 2 A maximum for NMP1K2; pins 3/4 are GND-P. The auxiliary tolerance is ±10% and ripple is 50 mVp-p maximum. CN32 pin 6 is RC1: short to GND-P for global ON, open for OFF. When global remote control is unused, fit the shorting connector supplied with the NMP power supply, linking pin 6 to pin 3; without that link the supply has no output. This is a front-end accessory, not a separate module auxiliary-output rating. CN32 pin 5 is the T-Alarm TTL output, referenced to pins 3/4, with 10 mA maximum source current. Normal temperature gives 0–0.5 V. Above the alarm threshold it gives 4.5–5.5 V while output remains on; above the safe-temperature limit the output turns off. The temperature-controlled fan and its alarm function belong to the front end. Voltage Programming, Current Programming and Remote Sense Set the local output using VR60. For external PV control, connect the control voltage to CN81 pin 8, referenced to pin 1 or 2. The programmable voltage range is the same as the model's voltage-adjustment range. The page 14 transfer chart is non-linear and includes a separate low-range region for the 12 V E-code module; use that chart and the model-specific voltage limits. Its 100% output reference is shown at a 5 V control signal. For PC control, connect the external control voltage to CN81 pin 7, referenced to pin 1 or 2. The specified constant-current setting range is 40–100% of rated current; the non-linear chart shows 40% at 1.8 V and 100% at 5 V. The additional 115% typical OLP point is a protection reference, not an increased continuous-output rating. PC control must not be used during parallel operation. Remote sense compensates up to 0.5 V of load-wiring drop. Connect CN81 pin 9 (+S) to the positive load point and pin 10 (-S) to the negative load point, with the sense lines twisted as a pair. Keep the sensed output and load within the module ratings. Local Control, Auxiliary Output and Protection Local remote ON/OFF CN81 pin 3 (RC2) to pin 1 or 2 (GND): open = output ON; short = output OFF. Module auxiliary Vcc2 5 V, 10 mA maximum; ±10% tolerance; 50 mVp-p maximum ripple. Available on CN81 pin 4. DC OK and indicator CN81 pin 5: 4.5–5.5 V when output is ON; 0–0.5 V when OFF. Maximum source current 10 mA; reference pin 1 or 2. The module indicator is LD60. Overload 105–125% of rated output power; constant-current limiting. Overvoltage 31–37 V; shut down output and re-power to recover. Overtemperature Shut down output; automatic recovery after temperature falls. Current Sharing and Parallel Operation For compatible NMS modules, connect CN81 pin 6 (CS) and the pin 1/2 signal grounds in parallel as shown in the catalogue. Set their output-voltage differences to less than 0.2 V, and use short, large-diameter output wiring to the load. A maximum of four NMS modules is supported in NMP650 and six in NMP1K2. The total current must not exceed the sum of the participating module current ratings, and total output power must remain within the NMP650 650 W or NMP1K2 1200 W limit. Apply module, wiring and thermal limits as well. Below 10% of rated load, only the master may operate while slave modules enter standby. For C-code 5 V and E-code 12 V modules in current-sharing operation, short-circuit protection may operate in hiccup or constant-current-limiting mode. Ripple can be higher than the single-module specification at light load. Switch all parallel modules ON/OFF together; their LED and DC OK states must follow together. Do not use PC current programming in parallel. NMP650 accepts catalogue parallel-connection codes 00, 01, 02, 03, 06, 07, 10 and 16; NMP1K2 provides codes 00–31, with the actual slot grouping defined by the configuration table. Timing and Measurement Conditions Set-up / rise time 1500 / 60 ms at full load. Typical hold-up time 16 ms at 230 VAC and 75% of the specified assembled-system load; 10 ms at 230 VAC and full specified assembled-system load. General test conditions 230 VAC input, rated load and 25°C ambient unless a parameter states otherwise. Ripple measurement 20 MHz bandwidth, 12-inch twisted pair, with 0.1 µF and 47 µF capacitors in parallel at the termination. Tolerance definition Includes set-up tolerance, line regulation and load regulation. The hold-up values apply to the catalogue's reference combinations: NMP650 with one each of C/E/H/K at 650 W maximum, or NMP1K2 with C×1, E×1, H×2 and K×2 at 1200 W maximum. The front-end efficiency and hold-up performance depend on the installed module combination. Temperature, Input Derating and Environment Input-voltage load curve At 60 Hz: 70% load at 90 VAC, rising to 100% at 110 VAC; the full-load plateau extends to 264 VAC. Apply this together with the temperature curve. Operating humidity 20–90% RH, non-condensing. Storage conditions -40°C to +85°C; 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C from 0°C to +50°C. Vibration 10–500 Hz, 2 G, 10-minute cycle; 60 minutes each along X, Y and Z. For horizontal installation, the NMP/NMS load curve permits 100% from -30°C to +50°C at 230 VAC, or from -25°C to +50°C at 115 VAC. Above +50°C derate to 60% at +70°C with 230 VAC, or 50% at +70°C with 115 VAC. The -30°C to below -25°C region is marked 230 VAC only. Above 2000 m, the catalogue requires an ambient-temperature reduction of 5°C per 1000 m for fan-cooled models, or 3.5°C per 1000 m for fanless models. Use the fan-cooled requirement for the NMP installation. This thermal note does not establish an additional maximum operating altitude. Dimensions, Weight and DC Terminals Module dimensions, L × W × H 118.5 × 37.9 × 18 mm, as listed in the specification table; allow connector and terminal clearances shown in the mechanical drawing. Typical single-module weight 142 g (0.142 kg). Packing reference 72 modules / 11.2 kg / 1.04 CUFT; this is the carton quantity and mass. DC output terminals +V and -V screw terminals; recommended screw M3.5, maximum mounting torque 10 kgf·cm and maximum penetration depth 10 mm. Mechanical reference Use physical page 11 for module geometry, VR60, LD60 and CN81 orientation. The terminal limits are distinct from the front-end chassis mounting limits. CN81 Control Connector Module connector HRS DF11-10DP-2DS or equivalent. Mating housing HRS DF11-10DS or equivalent. Contact series HRS DF11-**SC or equivalent, as printed; select the complete contact variant for the intended conductor and connector. Pin 1: GND Signal reference. Pin 2: GND Signal reference. Pin 3: RC2 Open to pin 1 or 2: output ON; short: output OFF. Pin 4: Vcc2 4.5–5.5 V, 10 mA maximum, referenced to pin 1 or 2. Pin 5: DC OK ON: 4.5–5.5 V; OFF: 0–0.5 V; source 10 mA maximum, referenced to pin 1 or 2. Pin 6: CS Current sharing, referenced to pin 1 or 2. Pin 7: PC Constant-current programming, referenced to pin 1 or 2. Pin 8: PV Output-voltage programming, referenced to pin 1 or 2. Pin 9: +S Positive remote sense. Pin 10: -S Negative remote sense. The mating housing and contact references identify compatible connection parts; they are not a statement that an additional mating cable or contact set is included with this module. Configuration and Connection Accessories Unused output slot BLANK-NMS240 is the catalogue's blank-slot assembly; select it for unused NMP module positions and confirm supply details with MEAN WELL. Front-end CN32 connector HRS DF11-6DP-2DS or equivalent; mating housing HRS DF11-6DS or equivalent; contact reference HRS DF11-**SC or equivalent. Select the required module configuration with the compatible NMP650 or NMP1K2 front end. The catalogue's configuration examples describe assembled systems and do not mean that every module, blank-slot assembly or connection accessory accompanies this individual module. Parallel or series connection accessories are supplied by selection through MEAN WELL. Specify the required configuration and obtain its compatible connection arrangement before installation. Safety and Medical Equipment Integration The NMS module safety table and the NMP system table list the following catalogue standards. The catalogue lists IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No.60601-1:2014+A2; IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No.62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; and EAC TP TC 004. For the assembled NMP supply, primary-to-secondary isolation is 2 × MOPP and primary-to-earth isolation is 1 × MOPP. The catalogue gives touch current below 100 µA and earth leakage below 400 µA at 264 VAC, with I/O 4 kVAC, I/FG 2 kVAC and O/FG 0.5 kVAC withstand tests. Insulation resistance is 100 MΩ at 500 VDC, 25°C and 70% RH. The series is suitable for consideration in BF-type medical applications. These component-level properties do not certify the finished equipment as BF or establish compliance for an assembled medical system; insulation, enclosure, patient connections, leakage and EMC must be assessed in the final equipment. The NMP catalogue lists EN/BS EN 55032 and 55011 Class B conducted and radiated emissions, EN/BS EN 61000-3-2 Class A harmonics and EN/BS EN 61000-3-3 flicker. Immunity is referenced to EN/BS EN 60601-1-2, EN/BS EN 55035 and SEMI F47. Its test magnitudes include ESD 15 kV air/8 kV contact, RF field 10 V/m, EFT 2 kV, surge 4 kV line-to-FG/2 kV line-to-line, conducted RF 3 V and power-frequency magnetic field 30 A/m; dips include 100% for one period and 30% for 25 periods, with 100% interruption for 250 periods. The published EMC tests used a 360 × 720 × 1 mm metal plate. The supply is a component for installation in final equipment, whose complete EMC compliance must be reconfirmed.

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MEAN WELL NMS-240-12 is a single-output power module for the NMP650 and NMP1K2 modular power systems. Configuration code E provides 12 V, a 0–20 A load range and 240 W rated output, subject to the module limits, the front-end total and derating. It supports local ON/OFF, DC OK, remote sense, voltage/current programming and current sharing. A compatible NMP front end is required. Product Datasheet Download MEAN WELL NMS-240 Datasheet (PDF) The NMS-240 section is on PDF pages 1, 2, 3, 4, 5, 7, 8, 11, 13, 14, 15, 16, 17. Refer to the complete mechanical drawings and notes when planning installation. Model-Specific DC Output Configuration code E Rated output voltage 12 V. Rated output current 20 A; permitted load range 0–20 A. Rated output power 240 W. Ripple and noise, maximum 150 mVp-p. Voltage adjustment / PV range 6–15 V. Voltage tolerance ±1.0%; includes set-up, line and load regulation. Line regulation ±0.3%. Load regulation ±0.5%. Output voltage, current and power limits apply together. Raising the set voltage does not increase the permitted module power; the assembled NMP supply must also remain within its own total output limit. NMP System Integration Compatible front ends NMP650: four module slots and 650 W maximum total; NMP1K2: six slots and 1200 W maximum total. Mains connection The NMP front end accepts 90–264 VAC or 120–370 VDC; AC frequency 47–63 Hz. Connect this output module through the compatible front end, not directly to mains. Cooling and format The NMP system uses a 1U low-profile chassis and temperature-controlled fans. Preserve the host airflow and apply both input and temperature derating. Global and local controls Global control acts on the complete NMP supply; local controls act on module outputs. The global and local ON/OFF polarities are different. The assembled power supply, output modules, mating parts and selected interconnections must match the required configuration. The sum of the connected module loads must remain within the front-end power limit as well as each module and channel limit. The catalogue lists a five-year warranty for the NMP series. Medical diagnostic equipment, test and measurement, communications and automation are application examples; suitability depends on the complete equipment design. Front-End Auxiliary Supply and Global Signals On the NMP front end, CN32 pins 1/2 provide +5V-AUX-P at 1.5 A maximum for NMP650 or 2 A maximum for NMP1K2; pins 3/4 are GND-P. The auxiliary tolerance is ±10% and ripple is 50 mVp-p maximum. CN32 pin 6 is RC1: short to GND-P for global ON, open for OFF. When global remote control is unused, fit the shorting connector supplied with the NMP power supply, linking pin 6 to pin 3; without that link the supply has no output. This is a front-end accessory, not a separate module auxiliary-output rating. CN32 pin 5 is the T-Alarm TTL output, referenced to pins 3/4, with 10 mA maximum source current. Normal temperature gives 0–0.5 V. Above the alarm threshold it gives 4.5–5.5 V while output remains on; above the safe-temperature limit the output turns off. The temperature-controlled fan and its alarm function belong to the front end. Voltage Programming, Current Programming and Remote Sense Set the local output using VR60. For external PV control, connect the control voltage to CN81 pin 8, referenced to pin 1 or 2. The programmable voltage range is the same as the model's voltage-adjustment range. The page 14 transfer chart is non-linear and includes a separate low-range region for the 12 V E-code module; use that chart and the model-specific voltage limits. Its 100% output reference is shown at a 5 V control signal. For PC control, connect the external control voltage to CN81 pin 7, referenced to pin 1 or 2. The specified constant-current setting range is 40–100% of rated current; the non-linear chart shows 40% at 1.8 V and 100% at 5 V. The additional 115% typical OLP point is a protection reference, not an increased continuous-output rating. PC control must not be used during parallel operation. Remote sense compensates up to 0.5 V of load-wiring drop. Connect CN81 pin 9 (+S) to the positive load point and pin 10 (-S) to the negative load point, with the sense lines twisted as a pair. Keep the sensed output and load within the module ratings. Local Control, Auxiliary Output and Protection Local remote ON/OFF CN81 pin 3 (RC2) to pin 1 or 2 (GND): open = output ON; short = output OFF. Module auxiliary Vcc2 5 V, 10 mA maximum; ±10% tolerance; 50 mVp-p maximum ripple. Available on CN81 pin 4. DC OK and indicator CN81 pin 5: 4.5–5.5 V when output is ON; 0–0.5 V when OFF. Maximum source current 10 mA; reference pin 1 or 2. The module indicator is LD60. Overload 105–125% of rated output power; constant-current limiting. Overvoltage 15.5–20 V; shut down output and re-power to recover. Overtemperature Shut down output; automatic recovery after temperature falls. Current Sharing and Parallel Operation For compatible NMS modules, connect CN81 pin 6 (CS) and the pin 1/2 signal grounds in parallel as shown in the catalogue. Set their output-voltage differences to less than 0.2 V, and use short, large-diameter output wiring to the load. A maximum of four NMS modules is supported in NMP650 and six in NMP1K2. The total current must not exceed the sum of the participating module current ratings, and total output power must remain within the NMP650 650 W or NMP1K2 1200 W limit. Apply module, wiring and thermal limits as well. Below 10% of rated load, only the master may operate while slave modules enter standby. For C-code 5 V and E-code 12 V modules in current-sharing operation, short-circuit protection may operate in hiccup or constant-current-limiting mode. Ripple can be higher than the single-module specification at light load. Switch all parallel modules ON/OFF together; their LED and DC OK states must follow together. Do not use PC current programming in parallel. NMP650 accepts catalogue parallel-connection codes 00, 01, 02, 03, 06, 07, 10 and 16; NMP1K2 provides codes 00–31, with the actual slot grouping defined by the configuration table. Timing and Measurement Conditions Set-up / rise time 1500 / 60 ms at full load. Typical hold-up time 16 ms at 230 VAC and 75% of the specified assembled-system load; 10 ms at 230 VAC and full specified assembled-system load. General test conditions 230 VAC input, rated load and 25°C ambient unless a parameter states otherwise. Ripple measurement 20 MHz bandwidth, 12-inch twisted pair, with 0.1 µF and 47 µF capacitors in parallel at the termination. Tolerance definition Includes set-up tolerance, line regulation and load regulation. The hold-up values apply to the catalogue's reference combinations: NMP650 with one each of C/E/H/K at 650 W maximum, or NMP1K2 with C×1, E×1, H×2 and K×2 at 1200 W maximum. The front-end efficiency and hold-up performance depend on the installed module combination. Temperature, Input Derating and Environment Input-voltage load curve At 60 Hz: 70% load at 90 VAC, rising to 100% at 110 VAC; the full-load plateau extends to 264 VAC. Apply this together with the temperature curve. Operating humidity 20–90% RH, non-condensing. Storage conditions -40°C to +85°C; 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C from 0°C to +50°C. Vibration 10–500 Hz, 2 G, 10-minute cycle; 60 minutes each along X, Y and Z. For horizontal installation, the NMP/NMS load curve permits 100% from -30°C to +50°C at 230 VAC, or from -25°C to +50°C at 115 VAC. Above +50°C derate to 60% at +70°C with 230 VAC, or 50% at +70°C with 115 VAC. The -30°C to below -25°C region is marked 230 VAC only. Above 2000 m, the catalogue requires an ambient-temperature reduction of 5°C per 1000 m for fan-cooled models, or 3.5°C per 1000 m for fanless models. Use the fan-cooled requirement for the NMP installation. This thermal note does not establish an additional maximum operating altitude. Dimensions, Weight and DC Terminals Module dimensions, L × W × H 118.5 × 37.9 × 18 mm, as listed in the specification table; allow connector and terminal clearances shown in the mechanical drawing. Typical single-module weight 142 g (0.142 kg). Packing reference 72 modules / 11.2 kg / 1.04 CUFT; this is the carton quantity and mass. DC output terminals +V and -V screw terminals; recommended screw M3.5, maximum mounting torque 10 kgf·cm and maximum penetration depth 10 mm. Mechanical reference Use physical page 11 for module geometry, VR60, LD60 and CN81 orientation. The terminal limits are distinct from the front-end chassis mounting limits. CN81 Control Connector Module connector HRS DF11-10DP-2DS or equivalent. Mating housing HRS DF11-10DS or equivalent. Contact series HRS DF11-**SC or equivalent, as printed; select the complete contact variant for the intended conductor and connector. Pin 1: GND Signal reference. Pin 2: GND Signal reference. Pin 3: RC2 Open to pin 1 or 2: output ON; short: output OFF. Pin 4: Vcc2 4.5–5.5 V, 10 mA maximum, referenced to pin 1 or 2. Pin 5: DC OK ON: 4.5–5.5 V; OFF: 0–0.5 V; source 10 mA maximum, referenced to pin 1 or 2. Pin 6: CS Current sharing, referenced to pin 1 or 2. Pin 7: PC Constant-current programming, referenced to pin 1 or 2. Pin 8: PV Output-voltage programming, referenced to pin 1 or 2. Pin 9: +S Positive remote sense. Pin 10: -S Negative remote sense. The mating housing and contact references identify compatible connection parts; they are not a statement that an additional mating cable or contact set is included with this module. Configuration and Connection Accessories Unused output slot BLANK-NMS240 is the catalogue's blank-slot assembly; select it for unused NMP module positions and confirm supply details with MEAN WELL. Front-end CN32 connector HRS DF11-6DP-2DS or equivalent; mating housing HRS DF11-6DS or equivalent; contact reference HRS DF11-**SC or equivalent. Select the required module configuration with the compatible NMP650 or NMP1K2 front end. The catalogue's configuration examples describe assembled systems and do not mean that every module, blank-slot assembly or connection accessory accompanies this individual module. Parallel or series connection accessories are supplied by selection through MEAN WELL. Specify the required configuration and obtain its compatible connection arrangement before installation. Safety and Medical Equipment Integration The NMS module safety table and the NMP system table list the following catalogue standards. The catalogue lists IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No.60601-1:2014+A2; IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No.62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; and EAC TP TC 004. For the assembled NMP supply, primary-to-secondary isolation is 2 × MOPP and primary-to-earth isolation is 1 × MOPP. The catalogue gives touch current below 100 µA and earth leakage below 400 µA at 264 VAC, with I/O 4 kVAC, I/FG 2 kVAC and O/FG 0.5 kVAC withstand tests. Insulation resistance is 100 MΩ at 500 VDC, 25°C and 70% RH. The series is suitable for consideration in BF-type medical applications. These component-level properties do not certify the finished equipment as BF or establish compliance for an assembled medical system; insulation, enclosure, patient connections, leakage and EMC must be assessed in the final equipment. The NMP catalogue lists EN/BS EN 55032 and 55011 Class B conducted and radiated emissions, EN/BS EN 61000-3-2 Class A harmonics and EN/BS EN 61000-3-3 flicker. Immunity is referenced to EN/BS EN 60601-1-2, EN/BS EN 55035 and SEMI F47. Its test magnitudes include ESD 15 kV air/8 kV contact, RF field 10 V/m, EFT 2 kV, surge 4 kV line-to-FG/2 kV line-to-line, conducted RF 3 V and power-frequency magnetic field 30 A/m; dips include 100% for one period and 30% for 25 periods, with 100% interruption for 250 periods. The published EMC tests used a 360 × 720 × 1 mm metal plate. The supply is a component for installation in final equipment, whose complete EMC compliance must be reconfirmed.

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MEAN WELL NMS-240-05 is a single-output power module for the NMP650 and NMP1K2 modular power systems. Configuration code C provides 5 V, a 0–36 A load range and 180 W rated output, subject to the module limits, the front-end total and derating. It supports local ON/OFF, DC OK, remote sense, voltage/current programming and current sharing. A compatible NMP front end is required. Product Datasheet Download MEAN WELL NMS-240 Datasheet (PDF) The NMS-240 section is on PDF pages 1, 2, 3, 4, 5, 7, 8, 11, 13, 14, 15, 16, 17. Refer to the complete mechanical drawings and notes when planning installation. Model-Specific DC Output Configuration code C Rated output voltage 5 V. Rated output current 36 A; permitted load range 0–36 A. Rated output power 180 W. Ripple and noise, maximum 100 mVp-p. Voltage adjustment / PV range 3–6 V. Voltage tolerance ±2.0%; includes set-up, line and load regulation. Line regulation ±0.5%. Load regulation ±1.0%. Output voltage, current and power limits apply together. Raising the set voltage does not increase the permitted module power; the assembled NMP supply must also remain within its own total output limit. NMP System Integration Compatible front ends NMP650: four module slots and 650 W maximum total; NMP1K2: six slots and 1200 W maximum total. Mains connection The NMP front end accepts 90–264 VAC or 120–370 VDC; AC frequency 47–63 Hz. Connect this output module through the compatible front end, not directly to mains. Cooling and format The NMP system uses a 1U low-profile chassis and temperature-controlled fans. Preserve the host airflow and apply both input and temperature derating. Global and local controls Global control acts on the complete NMP supply; local controls act on module outputs. The global and local ON/OFF polarities are different. The assembled power supply, output modules, mating parts and selected interconnections must match the required configuration. The sum of the connected module loads must remain within the front-end power limit as well as each module and channel limit. The catalogue lists a five-year warranty for the NMP series. Medical diagnostic equipment, test and measurement, communications and automation are application examples; suitability depends on the complete equipment design. Front-End Auxiliary Supply and Global Signals On the NMP front end, CN32 pins 1/2 provide +5V-AUX-P at 1.5 A maximum for NMP650 or 2 A maximum for NMP1K2; pins 3/4 are GND-P. The auxiliary tolerance is ±10% and ripple is 50 mVp-p maximum. CN32 pin 6 is RC1: short to GND-P for global ON, open for OFF. When global remote control is unused, fit the shorting connector supplied with the NMP power supply, linking pin 6 to pin 3; without that link the supply has no output. This is a front-end accessory, not a separate module auxiliary-output rating. CN32 pin 5 is the T-Alarm TTL output, referenced to pins 3/4, with 10 mA maximum source current. Normal temperature gives 0–0.5 V. Above the alarm threshold it gives 4.5–5.5 V while output remains on; above the safe-temperature limit the output turns off. The temperature-controlled fan and its alarm function belong to the front end. Voltage Programming, Current Programming and Remote Sense Set the local output using VR60. For external PV control, connect the control voltage to CN81 pin 8, referenced to pin 1 or 2. The programmable voltage range is the same as the model's voltage-adjustment range. The page 14 transfer chart is non-linear and includes a separate low-range region for the 12 V E-code module; use that chart and the model-specific voltage limits. Its 100% output reference is shown at a 5 V control signal. For PC control, connect the external control voltage to CN81 pin 7, referenced to pin 1 or 2. The specified constant-current setting range is 40–100% of rated current; the non-linear chart shows 40% at 1.8 V and 100% at 5 V. The additional 115% typical OLP point is a protection reference, not an increased continuous-output rating. PC control must not be used during parallel operation. Remote sense compensates up to 0.5 V of load-wiring drop. Connect CN81 pin 9 (+S) to the positive load point and pin 10 (-S) to the negative load point, with the sense lines twisted as a pair. Keep the sensed output and load within the module ratings. Local Control, Auxiliary Output and Protection Local remote ON/OFF CN81 pin 3 (RC2) to pin 1 or 2 (GND): open = output ON; short = output OFF. Module auxiliary Vcc2 5 V, 10 mA maximum; ±10% tolerance; 50 mVp-p maximum ripple. Available on CN81 pin 4. DC OK and indicator CN81 pin 5: 4.5–5.5 V when output is ON; 0–0.5 V when OFF. Maximum source current 10 mA; reference pin 1 or 2. The module indicator is LD60. Overload 105–125% of rated output power; constant-current limiting. Overvoltage 6.3–8 V; shut down output and re-power to recover. Overtemperature Shut down output; automatic recovery after temperature falls. Current Sharing and Parallel Operation For compatible NMS modules, connect CN81 pin 6 (CS) and the pin 1/2 signal grounds in parallel as shown in the catalogue. Set their output-voltage differences to less than 0.2 V, and use short, large-diameter output wiring to the load. A maximum of four NMS modules is supported in NMP650 and six in NMP1K2. The total current must not exceed the sum of the participating module current ratings, and total output power must remain within the NMP650 650 W or NMP1K2 1200 W limit. Apply module, wiring and thermal limits as well. Below 10% of rated load, only the master may operate while slave modules enter standby. For C-code 5 V and E-code 12 V modules in current-sharing operation, short-circuit protection may operate in hiccup or constant-current-limiting mode. Ripple can be higher than the single-module specification at light load. Switch all parallel modules ON/OFF together; their LED and DC OK states must follow together. Do not use PC current programming in parallel. NMP650 accepts catalogue parallel-connection codes 00, 01, 02, 03, 06, 07, 10 and 16; NMP1K2 provides codes 00–31, with the actual slot grouping defined by the configuration table. Timing and Measurement Conditions Set-up / rise time 1500 / 60 ms at full load. Typical hold-up time 16 ms at 230 VAC and 75% of the specified assembled-system load; 10 ms at 230 VAC and full specified assembled-system load. General test conditions 230 VAC input, rated load and 25°C ambient unless a parameter states otherwise. Ripple measurement 20 MHz bandwidth, 12-inch twisted pair, with 0.1 µF and 47 µF capacitors in parallel at the termination. Tolerance definition Includes set-up tolerance, line regulation and load regulation. The hold-up values apply to the catalogue's reference combinations: NMP650 with one each of C/E/H/K at 650 W maximum, or NMP1K2 with C×1, E×1, H×2 and K×2 at 1200 W maximum. The front-end efficiency and hold-up performance depend on the installed module combination. Temperature, Input Derating and Environment Input-voltage load curve At 60 Hz: 70% load at 90 VAC, rising to 100% at 110 VAC; the full-load plateau extends to 264 VAC. Apply this together with the temperature curve. Operating humidity 20–90% RH, non-condensing. Storage conditions -40°C to +85°C; 10–95% RH, non-condensing. Temperature coefficient ±0.03%/°C from 0°C to +50°C. Vibration 10–500 Hz, 2 G, 10-minute cycle; 60 minutes each along X, Y and Z. For horizontal installation, the NMP/NMS load curve permits 100% from -30°C to +50°C at 230 VAC, or from -25°C to +50°C at 115 VAC. Above +50°C derate to 60% at +70°C with 230 VAC, or 50% at +70°C with 115 VAC. The -30°C to below -25°C region is marked 230 VAC only. Above 2000 m, the catalogue requires an ambient-temperature reduction of 5°C per 1000 m for fan-cooled models, or 3.5°C per 1000 m for fanless models. Use the fan-cooled requirement for the NMP installation. This thermal note does not establish an additional maximum operating altitude. Dimensions, Weight and DC Terminals Module dimensions, L × W × H 118.5 × 37.9 × 18 mm, as listed in the specification table; allow connector and terminal clearances shown in the mechanical drawing. Typical single-module weight 142 g (0.142 kg). Packing reference 72 modules / 11.2 kg / 1.04 CUFT; this is the carton quantity and mass. DC output terminals +V and -V screw terminals; recommended screw M3.5, maximum mounting torque 10 kgf·cm and maximum penetration depth 10 mm. Mechanical reference Use physical page 11 for module geometry, VR60, LD60 and CN81 orientation. The terminal limits are distinct from the front-end chassis mounting limits. CN81 Control Connector Module connector HRS DF11-10DP-2DS or equivalent. Mating housing HRS DF11-10DS or equivalent. Contact series HRS DF11-**SC or equivalent, as printed; select the complete contact variant for the intended conductor and connector. Pin 1: GND Signal reference. Pin 2: GND Signal reference. Pin 3: RC2 Open to pin 1 or 2: output ON; short: output OFF. Pin 4: Vcc2 4.5–5.5 V, 10 mA maximum, referenced to pin 1 or 2. Pin 5: DC OK ON: 4.5–5.5 V; OFF: 0–0.5 V; source 10 mA maximum, referenced to pin 1 or 2. Pin 6: CS Current sharing, referenced to pin 1 or 2. Pin 7: PC Constant-current programming, referenced to pin 1 or 2. Pin 8: PV Output-voltage programming, referenced to pin 1 or 2. Pin 9: +S Positive remote sense. Pin 10: -S Negative remote sense. The mating housing and contact references identify compatible connection parts; they are not a statement that an additional mating cable or contact set is included with this module. Configuration and Connection Accessories Unused output slot BLANK-NMS240 is the catalogue's blank-slot assembly; select it for unused NMP module positions and confirm supply details with MEAN WELL. Front-end CN32 connector HRS DF11-6DP-2DS or equivalent; mating housing HRS DF11-6DS or equivalent; contact reference HRS DF11-**SC or equivalent. Select the required module configuration with the compatible NMP650 or NMP1K2 front end. The catalogue's configuration examples describe assembled systems and do not mean that every module, blank-slot assembly or connection accessory accompanies this individual module. Parallel or series connection accessories are supplied by selection through MEAN WELL. Specify the required configuration and obtain its compatible connection arrangement before installation. Safety and Medical Equipment Integration The NMS module safety table and the NMP system table list the following catalogue standards. The catalogue lists IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No.60601-1:2014+A2; IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No.62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; and EAC TP TC 004. For the assembled NMP supply, primary-to-secondary isolation is 2 × MOPP and primary-to-earth isolation is 1 × MOPP. The catalogue gives touch current below 100 µA and earth leakage below 400 µA at 264 VAC, with I/O 4 kVAC, I/FG 2 kVAC and O/FG 0.5 kVAC withstand tests. Insulation resistance is 100 MΩ at 500 VDC, 25°C and 70% RH. The series is suitable for consideration in BF-type medical applications. These component-level properties do not certify the finished equipment as BF or establish compliance for an assembled medical system; insulation, enclosure, patient connections, leakage and EMC must be assessed in the final equipment. The NMP catalogue lists EN/BS EN 55032 and 55011 Class B conducted and radiated emissions, EN/BS EN 61000-3-2 Class A harmonics and EN/BS EN 61000-3-3 flicker. Immunity is referenced to EN/BS EN 60601-1-2, EN/BS EN 55035 and SEMI F47. Its test magnitudes include ESD 15 kV air/8 kV contact, RF field 10 V/m, EFT 2 kV, surge 4 kV line-to-FG/2 kV line-to-line, conducted RF 3 V and power-frequency magnetic field 30 A/m; dips include 100% for one period and 30% for 25 periods, with 100% interruption for 250 periods. The published EMC tests used a 360 × 720 × 1 mm metal plate. The supply is a component for installation in final equipment, whose complete EMC compliance must be reconfirmed.

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MEAN WELL NMP1K2 is a 6-slot modular AC/DC power supply front end with up to 1200 W combined output, subject to input and temperature derating. Its 1U enclosure accepts selected NMS-240 single-output or NMD-240 dual-output modules. The bare front-end model does not specify the installed module combination or a fixed main-output voltage. Product Datasheet Download MEAN WELL NMP Datasheet (PDF) The NMP section is on PDF pages 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17. Refer to the complete mechanical drawings and notes when planning installation. Front End and Output Configuration Model / module capacity NMP1K2; 6 slots. Maximum combined output power: 1200 W. Select the output modules and keep all channel loads within both their individual limits and the front-end limit. Main-output voltage and current Determined by the selected output modules; this front-end code alone does not define a fixed main-output voltage or current. The 5 V auxiliary supply is a separate control-power output. Single-output module choices Code C: NMS-240-05, 5 V / 36 A / 180 W, adjustable 3–6 V. Code E: NMS-240-12, 12 V / 20 A / 240 W, adjustable 6–15 V. Code H: NMS-240-24, 24 V / 10 A / 240 W, adjustable 15–30 V. Code K: NMS-240-48, 48 V / 5 A / 240 W, adjustable 30–55 V. Dual-output module choice Code D: NMD-240, two independently adjustable 3–30 V outputs. Each output is rated up to 30 V / 5 A / 150 W, but the two outputs together must not exceed 240 W. Configuration code After NMP1K2, specify the module code for each slot and the required parallel/option code. Applicable parallel/option codes: 00–31. The exact linked-slot groups are shown on PDF pages 2–3. Unused slots The # configuration symbol identifies a blank slot. Fit BLANK-NMS240 to an unused slot; contact MEAN WELL for the required blank-slot assembly and supply details. A module occupying one slot can provide one output, or two outputs when NMD-240 is selected. Module names and configuration codes describe selectable components, not a preinstalled set included with this bare front-end model. The configured example on PDF page 2 illustrates selection and does not override individual or combined power limits. AC/DC Input and Conversion Input voltage / frequency 90–264 VAC or 120–370 VDC; AC-input frequency 47–63 Hz. Low input voltage requires derating. Power factor PF >0.95 at 230 VAC and >0.98 at 115 VAC, at full load. Typical efficiency 90.5% at full case load using H / K modules at nominal 24 V / 48 V. The specified mixed-module nominal-voltage test gives 88.5%; efficiency depends on module selection. AC input current 6.7 A at 230 VAC; 13.5 A at 115 VAC. Inrush current 40 A at 230 VAC; 25 A at 115 VAC. Leakage / touch current Earth leakage <400 µA and touch current <100 µA at 264 VAC. Conversion switching frequencies Front-end PFC: 85 kHz; front-end PWM: 100 kHz. The NMS-240 and NMD-240 module block diagrams show 175 kHz PWM. The mixed-module efficiency example uses one code C, one E, two H and two K modules, with total output no greater than 1200 W. Unless otherwise stated, specifications are measured at 230 VAC, rated load and 25°C. Module ripple measurements use 20 MHz bandwidth and a 12-inch twisted pair terminated by 0.1 µF and 47 µF capacitors in parallel. Cooling, Derating and Protection Cooling Thermostatically controlled fan cooling; the series feature list includes a fan-alarm function. Keep the fan and airflow path clear and follow the mechanical drawing. Temperature / load curve For horizontal installation at 230 VAC, 100% load is available from −30 to +50°C, reducing to 60% at +70°C. At 115 VAC, the plotted range starts at −25°C, holds 100% through +50°C and reduces to 50% at +70°C. The −30 to −25°C extension is marked 230 VAC only. Input-voltage / load curve At 60 Hz, the curve rises from 70% load at 90 VAC to 100% at 110 VAC; 100% is shown from 110 to 264 VAC. Apply this together with temperature and module-specific limits. Front-end overtemperature protection Output shuts down and automatically recovers after the temperature falls. T-Alarm provides a warning before the safe-limit shutdown. Output-module protections NMS-240 and each NMD-240 output have overload, short-circuit, overvoltage and overtemperature protection. Their 105–125% overload range uses constant-current limiting; overvoltage shuts down the output and requires re-powering, while overtemperature automatically recovers after cooling. Module-specific voltage thresholds must be selected with the module. NMD-240 also has its own voltage-dependent temperature curves on PDF page 8; a complete configuration must obey the lowest applicable front-end, module, input and ambient limit. Do not apply the front-end curve as a replacement for a selected module curve. Global Control, Auxiliary Output and Alarm CN32 control connector Front-end connector: HRS DF11-6DP-2DS or equivalent. Mating housing: HRS DF11-6DS or equivalent. The terminal-family reference is HRS DF11-**SC or equivalent; select the exact contact variant for the wire assembly. CN32 pin map Pins 1 and 2: +5V-AUX_P; pins 3 and 4: GND-P; pin 5: T-Alarm; pin 6: RC1. Auxiliary control power 5 V / 2 A total, shared by CN32 pins 1 and 2 and referenced to pins 3 and 4. Tolerance ±10% (4.5–5.5 V); ripple 50 mVp-p maximum. This is not the full-power main output. Global ON/OFF Short CN32 pin 6 (RC1) to pin 3 or 4 (GND-P) for ON; open for OFF. If global remote control is not used, install the supplied shorting connector, which links pin 6 to pin 3. Without that shorting connector the supply has no output. Temperature alarm T-Alarm on CN32 pin 5 is referenced to GND-P on pin 3 or 4 and can source up to 10 mA. Normal internal temperature: 0–0.5 V, output ON. Temperature-alarm limit exceeded: 4.5–5.5 V, output still ON. Safe limit exceeded: 4.5–5.5 V, output OFF. The alarm monitors internal temperature at U702, not ambient temperature. The shorting connector is identified as supplied with the PSU; separately purchased mating housings and contacts are not stated as additional included parts. Functions Available with Selected Output Modules NMS-240 local control / status CN81 pin 3 (RC2) to pin 1 or 2 (GND): open ON, short OFF. Pin 5 is DC OK: 4.5–5.5 V ON, 0–0.5 V OFF, up to 10 mA sourcing. Pin 4 provides VCC2 auxiliary 5 V / 10 mA. NMS-240 remote sense CN81 pin 9 is +S and pin 10 is −S. Compensates up to 0.5 V load-wire drop; twist the sense lines as a pair and connect them at the load. NMS-240 voltage / current programming CN81 pin 8 is PV and pin 7 is PC, both referenced to GND on pin 1 or 2. PV covers the selected module’s listed adjustment range. PC adjusts the constant-current level over 40–100% of rated current. The diagrams mark the control relationships non-linear; use the full module curves rather than one assumed linear conversion. NMS-240 current sharing Connect CS on CN81 pin 6 and GND on pin 1 or 2 between the modules. Use no more than 6 NMS-240 modules within this front end, with output-voltage differences below 0.2 V. Total current must respect the selected modules and combined output power must remain within 1200 W and all derating limits. NMD-240 local control / status CN82 pins 1 and 2 are GND1 (−V1) and GND2 (−V2). Pin 3 (RC2) controls V1 relative to pin 1; pin 4 (RC3) controls V2 relative to pin 2: open ON, short OFF. Pins 5 and 6 are DC OK1 and DC OK2 respectively: 4.5–5.5 V ON and 0–0.5 V OFF, up to 10 mA sourcing. Pins 7–10 are NC. Module control connectors NMS CN81 and NMD CN82 use HRS DF11-10DP-2DS or equivalent, with HRS DF11-10DS mating housing or equivalent. Contacts use the printed HRS DF11-**SC terminal-family reference; confirm the full ordering suffix for the selected wire assembly. Remote sense, PV, PC and current sharing are NMS-240 functions; they are not assigned to NMD-240 or to unused CN32 pins. Global front-end control and local module control use opposite open/short logic. For NMS current sharing, use short, large-diameter output wiring. Below 10% rated load, only the master module may operate while the others enter standby. Turn all paralleled modules ON/OFF simultaneously; their LEDs and DC OK indications must operate together. Do not use PC while modules are paralleled. In current sharing, short-circuit protection for C (5 V) or E (12 V) modules may be hiccup or constant-current limiting. Contact MEAN WELL for the parallel/series connection accessories appropriate to the selected configuration. Mechanical Installation and Connections Enclosure / reference mass 250 × 127 × 41 mm (L × W × H), 1U low profile, case 260A. Catalogue typical single-unit packing reference: 2 kg (2000 g); reference mass is not a measured shipping weight. AC terminal block TB1 Pin 1: FG (protective earth); pin 2: AC/N; pin 3: AC/L. M3.5 terminal screws; maximum tightening torque 12 kgf·cm. Chassis mounting Follow the NMP1K2 drawing on PDF page 9. The bottom and side mounting positions use M4 screws with maximum penetration depth 4 mm and recommended tightening torque 7–10 kgf·cm. Chassis thickness is 1.6 mm; general drawing tolerance is ±0.5 mm. Mechanical projections / airflow The side view marks the AC-terminal projection 14 mm maximum and the output-side projection 10 mm maximum. Airflow is toward and out through the fan side shown in the drawing; preserve the inlet and outlet paths. Selected module output connections NMS-240 has +V and −V screw terminals: recommended M3.5 screws, maximum 10 kgf·cm torque and 10 mm maximum penetration. NMD-240 outputs are +V1/−V1/+V2/−V2; positive terminals are orange and negative terminals gray, accepting 20–26 AWG with 10 mm strip length. The main-unit dimensions, module terminal details and supplied shorting connector refer to different parts of the system. Select mounting hardware, output modules and wiring for the actual configuration. BLANK-NMS240 is used for unoccupied slots; do not leave the slot arrangement unspecified when ordering. Environment, Safety and EMC Operating / storage environment Working: −30 to +70°C with derating; 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH, non-condensing. Temperature coefficient: ±0.03%/°C over 0–50°C. Altitude / vibration Above 2000 m, reduce allowable ambient temperature by 5°C per 1000 m for this fan-cooled design. Vibration: 10–500 Hz, 2 G, 10 minutes per cycle and 60 minutes along each X, Y and Z axis. Medical safety approvals IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No. 60601-1:2014+A2, as listed in the catalogue. ITE safety approvals IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No. 62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; EAC TP TC 004, as listed. Medical isolation / BF application Primary–secondary: 2 × MOPP; primary–earth: 1 × MOPP. Suitable for BF applications with appropriate system consideration, including touch current <100 µA at 264 VAC; final equipment compliance must be confirmed by the system manufacturer. Dielectric / insulation Withstand: input–output 4 kVAC; input–FG 2 kVAC; output–FG 0.5 kVAC. Insulation resistance for these paths: 100 MΩ at 500 VDC, 25°C and 70% RH. EMC emissions Conducted and radiated Class B under BS EN/EN55032 (CISPR32) and BS EN/EN55011 (CISPR11). Harmonic current: BS EN/EN61000-3-2 Class A. Voltage flicker: BS EN/EN61000-3-3. Immunity is listed under BS EN/EN60601-1-2, BS EN/EN55035 and SEMI F47. Test values: EN61000-4-2 ESD level 4, 15 kV air / 8 kV contact; EN61000-4-3 RF field level 3, 10 V/m; EN61000-4-4 EFT/burst level 3, 2 kV; EN61000-4-5 surge level 4, 4 kV line–FG / 2 kV line–line; EN61000-4-6 conducted level 2, 3 V; EN61000-4-8 magnetic field level 4, 30 A/m. EN61000-4-11: 100% dip for 1 period, 30% dip for 25 periods and 100% interruption for 250 periods. The supply is a component for installation in final equipment. Catalogue EMC tests use a 360 × 720 mm metal plate, 1 mm thick; final equipment must be rechecked for EMC compliance. At light load during parallel operation, output ripple may exceed the normal specification. Reliability and Catalogue Conditions MTBF reference 1275.4 khr minimum under Telcordia SR-332 (Bellcore); 124.5 khr minimum under MIL-HDBK-217F at 25°C. Warranty / document The catalogue lists a 5-year warranty. NMP series specification dated 2025-10-28. Typical applications include medical and diagnostic equipment, MRI/CT/PET systems, measurement equipment, telecommunications, factory automation, aging equipment and lasers, subject to the complete system’s safety and load requirements.

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MEAN WELL NMP650 is a 4-slot modular AC/DC power supply front end with up to 650 W combined output, subject to input and temperature derating. Its 1U enclosure accepts selected NMS-240 single-output or NMD-240 dual-output modules. The bare front-end model does not specify the installed module combination or a fixed main-output voltage. Product Datasheet Download MEAN WELL NMP Datasheet (PDF) The NMP section is on PDF pages 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17. Refer to the complete mechanical drawings and notes when planning installation. Front End and Output Configuration Model / module capacity NMP650; 4 slots. Maximum combined output power: 650 W. Select the output modules and keep all channel loads within both their individual limits and the front-end limit. Main-output voltage and current Determined by the selected output modules; this front-end code alone does not define a fixed main-output voltage or current. The 5 V auxiliary supply is a separate control-power output. Single-output module choices Code C: NMS-240-05, 5 V / 36 A / 180 W, adjustable 3–6 V. Code E: NMS-240-12, 12 V / 20 A / 240 W, adjustable 6–15 V. Code H: NMS-240-24, 24 V / 10 A / 240 W, adjustable 15–30 V. Code K: NMS-240-48, 48 V / 5 A / 240 W, adjustable 30–55 V. Dual-output module choice Code D: NMD-240, two independently adjustable 3–30 V outputs. Each output is rated up to 30 V / 5 A / 150 W, but the two outputs together must not exceed 240 W. Configuration code After NMP650, specify the module code for each slot and the required parallel/option code. Applicable parallel/option codes: 00, 01, 02, 03, 06, 07, 10, 16. The exact linked-slot groups are shown on PDF pages 2–3. Unused slots The # configuration symbol identifies a blank slot. Fit BLANK-NMS240 to an unused slot; contact MEAN WELL for the required blank-slot assembly and supply details. A module occupying one slot can provide one output, or two outputs when NMD-240 is selected. Module names and configuration codes describe selectable components, not a preinstalled set included with this bare front-end model. The configured example on PDF page 2 illustrates selection and does not override individual or combined power limits. AC/DC Input and Conversion Input voltage / frequency 90–264 VAC or 120–370 VDC; AC-input frequency 47–63 Hz. Low input voltage requires derating. Power factor PF >0.95 at 230 VAC and >0.98 at 115 VAC, at full load. Typical efficiency 91% at full case load using H / K modules at nominal 24 V / 48 V. The specified mixed-module nominal-voltage test gives 88.5%; efficiency depends on module selection. AC input current 3.5 A at 230 VAC; 7.5 A at 115 VAC. Inrush current 40 A at 230 VAC; 25 A at 115 VAC. Leakage / touch current Earth leakage <400 µA and touch current <100 µA at 264 VAC. Conversion switching frequencies Front-end PFC: 70 kHz; front-end PWM: 100 kHz. The NMS-240 and NMD-240 module block diagrams show 175 kHz PWM. The mixed-module efficiency example uses one each of codes C, E, H and K, with total output no greater than 650 W. Unless otherwise stated, specifications are measured at 230 VAC, rated load and 25°C. Module ripple measurements use 20 MHz bandwidth and a 12-inch twisted pair terminated by 0.1 µF and 47 µF capacitors in parallel. Cooling, Derating and Protection Cooling Thermostatically controlled fan cooling; the series feature list includes a fan-alarm function. Keep the fan and airflow path clear and follow the mechanical drawing. Temperature / load curve For horizontal installation at 230 VAC, 100% load is available from −30 to +50°C, reducing to 60% at +70°C. At 115 VAC, the plotted range starts at −25°C, holds 100% through +50°C and reduces to 50% at +70°C. The −30 to −25°C extension is marked 230 VAC only. Input-voltage / load curve At 60 Hz, the curve rises from 70% load at 90 VAC to 100% at 110 VAC; 100% is shown from 110 to 264 VAC. Apply this together with temperature and module-specific limits. Front-end overtemperature protection Output shuts down and automatically recovers after the temperature falls. T-Alarm provides a warning before the safe-limit shutdown. Output-module protections NMS-240 and each NMD-240 output have overload, short-circuit, overvoltage and overtemperature protection. Their 105–125% overload range uses constant-current limiting; overvoltage shuts down the output and requires re-powering, while overtemperature automatically recovers after cooling. Module-specific voltage thresholds must be selected with the module. NMD-240 also has its own voltage-dependent temperature curves on PDF page 8; a complete configuration must obey the lowest applicable front-end, module, input and ambient limit. Do not apply the front-end curve as a replacement for a selected module curve. Global Control, Auxiliary Output and Alarm CN32 control connector Front-end connector: HRS DF11-6DP-2DS or equivalent. Mating housing: HRS DF11-6DS or equivalent. The terminal-family reference is HRS DF11-**SC or equivalent; select the exact contact variant for the wire assembly. CN32 pin map Pins 1 and 2: +5V-AUX_P; pins 3 and 4: GND-P; pin 5: T-Alarm; pin 6: RC1. Auxiliary control power 5 V / 1.5 A total, shared by CN32 pins 1 and 2 and referenced to pins 3 and 4. Tolerance ±10% (4.5–5.5 V); ripple 50 mVp-p maximum. This is not the full-power main output. Global ON/OFF Short CN32 pin 6 (RC1) to pin 3 or 4 (GND-P) for ON; open for OFF. If global remote control is not used, install the supplied shorting connector, which links pin 6 to pin 3. Without that shorting connector the supply has no output. Temperature alarm T-Alarm on CN32 pin 5 is referenced to GND-P on pin 3 or 4 and can source up to 10 mA. Normal internal temperature: 0–0.5 V, output ON. Temperature-alarm limit exceeded: 4.5–5.5 V, output still ON. Safe limit exceeded: 4.5–5.5 V, output OFF. The alarm monitors internal temperature at U702, not ambient temperature. The shorting connector is identified as supplied with the PSU; separately purchased mating housings and contacts are not stated as additional included parts. Functions Available with Selected Output Modules NMS-240 local control / status CN81 pin 3 (RC2) to pin 1 or 2 (GND): open ON, short OFF. Pin 5 is DC OK: 4.5–5.5 V ON, 0–0.5 V OFF, up to 10 mA sourcing. Pin 4 provides VCC2 auxiliary 5 V / 10 mA. NMS-240 remote sense CN81 pin 9 is +S and pin 10 is −S. Compensates up to 0.5 V load-wire drop; twist the sense lines as a pair and connect them at the load. NMS-240 voltage / current programming CN81 pin 8 is PV and pin 7 is PC, both referenced to GND on pin 1 or 2. PV covers the selected module’s listed adjustment range. PC adjusts the constant-current level over 40–100% of rated current. The diagrams mark the control relationships non-linear; use the full module curves rather than one assumed linear conversion. NMS-240 current sharing Connect CS on CN81 pin 6 and GND on pin 1 or 2 between the modules. Use no more than 4 NMS-240 modules within this front end, with output-voltage differences below 0.2 V. Total current must respect the selected modules and combined output power must remain within 650 W and all derating limits. NMD-240 local control / status CN82 pins 1 and 2 are GND1 (−V1) and GND2 (−V2). Pin 3 (RC2) controls V1 relative to pin 1; pin 4 (RC3) controls V2 relative to pin 2: open ON, short OFF. Pins 5 and 6 are DC OK1 and DC OK2 respectively: 4.5–5.5 V ON and 0–0.5 V OFF, up to 10 mA sourcing. Pins 7–10 are NC. Module control connectors NMS CN81 and NMD CN82 use HRS DF11-10DP-2DS or equivalent, with HRS DF11-10DS mating housing or equivalent. Contacts use the printed HRS DF11-**SC terminal-family reference; confirm the full ordering suffix for the selected wire assembly. Remote sense, PV, PC and current sharing are NMS-240 functions; they are not assigned to NMD-240 or to unused CN32 pins. Global front-end control and local module control use opposite open/short logic. For NMS current sharing, use short, large-diameter output wiring. Below 10% rated load, only the master module may operate while the others enter standby. Turn all paralleled modules ON/OFF simultaneously; their LEDs and DC OK indications must operate together. Do not use PC while modules are paralleled. In current sharing, short-circuit protection for C (5 V) or E (12 V) modules may be hiccup or constant-current limiting. Contact MEAN WELL for the parallel/series connection accessories appropriate to the selected configuration. Mechanical Installation and Connections Enclosure / reference mass 250 × 89 × 41 mm (L × W × H), 1U low profile, case 259A. Catalogue typical single-unit packing reference: 1.45 kg (1450 g); reference mass is not a measured shipping weight. AC terminal block TB1 Pin 1: FG (protective earth); pin 2: AC/N; pin 3: AC/L. M3.5 terminal screws; maximum tightening torque 12 kgf·cm. Chassis mounting Follow the NMP650 drawing on PDF page 10. The bottom and side mounting positions use M4 screws with maximum penetration depth 4 mm and recommended tightening torque 7–10 kgf·cm. Chassis thickness is 1.6 mm; general drawing tolerance is ±0.5 mm. Mechanical projections / airflow The side view marks the AC-terminal projection 14 mm maximum and the output-side projection 10 mm maximum. Airflow is toward and out through the fan side shown in the drawing; preserve the inlet and outlet paths. Selected module output connections NMS-240 has +V and −V screw terminals: recommended M3.5 screws, maximum 10 kgf·cm torque and 10 mm maximum penetration. NMD-240 outputs are +V1/−V1/+V2/−V2; positive terminals are orange and negative terminals gray, accepting 20–26 AWG with 10 mm strip length. The main-unit dimensions, module terminal details and supplied shorting connector refer to different parts of the system. Select mounting hardware, output modules and wiring for the actual configuration. BLANK-NMS240 is used for unoccupied slots; do not leave the slot arrangement unspecified when ordering. Environment, Safety and EMC Operating / storage environment Working: −30 to +70°C with derating; 20–90% RH, non-condensing. Storage: −40 to +85°C and 10–95% RH, non-condensing. Temperature coefficient: ±0.03%/°C over 0–50°C. Altitude / vibration Above 2000 m, reduce allowable ambient temperature by 5°C per 1000 m for this fan-cooled design. Vibration: 10–500 Hz, 2 G, 10 minutes per cycle and 60 minutes along each X, Y and Z axis. Medical safety approvals IEC 60601-1:2005+A1; TUV BS EN/EN 60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No. 60601-1:2014+A2, as listed in the catalogue. ITE safety approvals IEC 62368-1:2014; UL 62368-1, 2nd edition; CSA C22.2 No. 62368-1-14, 2nd edition; TUV BS EN/EN 62368-1:2014+A11; EAC TP TC 004, as listed. Medical isolation / BF application Primary–secondary: 2 × MOPP; primary–earth: 1 × MOPP. Suitable for BF applications with appropriate system consideration, including touch current <100 µA at 264 VAC; final equipment compliance must be confirmed by the system manufacturer. Dielectric / insulation Withstand: input–output 4 kVAC; input–FG 2 kVAC; output–FG 0.5 kVAC. Insulation resistance for these paths: 100 MΩ at 500 VDC, 25°C and 70% RH. EMC emissions Conducted and radiated Class B under BS EN/EN55032 (CISPR32) and BS EN/EN55011 (CISPR11). Harmonic current: BS EN/EN61000-3-2 Class A. Voltage flicker: BS EN/EN61000-3-3. Immunity is listed under BS EN/EN60601-1-2, BS EN/EN55035 and SEMI F47. Test values: EN61000-4-2 ESD level 4, 15 kV air / 8 kV contact; EN61000-4-3 RF field level 3, 10 V/m; EN61000-4-4 EFT/burst level 3, 2 kV; EN61000-4-5 surge level 4, 4 kV line–FG / 2 kV line–line; EN61000-4-6 conducted level 2, 3 V; EN61000-4-8 magnetic field level 4, 30 A/m. EN61000-4-11: 100% dip for 1 period, 30% dip for 25 periods and 100% interruption for 250 periods. The supply is a component for installation in final equipment. Catalogue EMC tests use a 360 × 720 mm metal plate, 1 mm thick; final equipment must be rechecked for EMC compliance. At light load during parallel operation, output ripple may exceed the normal specification. Reliability and Catalogue Conditions MTBF reference 1314.6 khr minimum under Telcordia SR-332 (Bellcore); 128.2 khr minimum under MIL-HDBK-217F at 25°C. Warranty / document The catalogue lists a 5-year warranty. NMP series specification dated 2025-10-28. Typical applications include medical and diagnostic equipment, MRI/CT/PET systems, measurement equipment, telecommunications, factory automation, aging equipment and lasers, subject to the complete system’s safety and load requirements.

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