产品特点 FEATURES

1 Modular design with 6 slots, supporting up to 1200W total output power (compatible with NMS-240 single-output and NMD-240 dual-output modules, each module up to 240W)

2 Wide input voltage range: 90~264VAC or 120~370VDC, suitable for global applications

3 High power factor: PF>0.95 at 230VAC full load, PF>0.98 at 115VAC full load

4 High efficiency: Up to 91% typical at full load with H/K modules (24V/48V nominal voltage)

5 Compliance with multiple safety standards: Medical (2x MOPP between primary and secondary), ITE (UL62368-1, EN60601-1 Ed3.1, IEC60950-1, etc.)

6 Rich protection functions: Overload (constant current limiting), overvoltage (shut down and recover on re-power), overtemperature (automatic recovery after cooling)

7 Flexible control options: Global/local ON/OFF control, remote sense (compensate up to 0.5V voltage drop), output voltage/current programming (PV/PC pins)

8 Intelligent monitoring: DC OK signal (TTL level indicating module status), temperature alarm (T-Alarm signal for overheating)

9 Parallel operation support: Current sharing function (CS pin connection) for balanced load distribution among modules

10 Compact size: 250×127×41mm (L×W×H), easy to integrate into rack-mounted or space-constrained systems

注意事项 PRECAUTIONS

1 Installation: Ensure proper ventilation (follow air flow direction), use recommended mounting screws (M4) with torque 7~10 Kgf-cm, avoid blocking heat dissipation paths

2 Operation:

3 Global ON/OFF control: Use the shorting connector (RC1 to GND-P) if not using global control; remove it to enable external control

4 Local ON/OFF control: For NMS-240 modules, open RC2 to GND for ON, short for OFF; for NMD-240, control V1/V2 separately via RC2/RC3

5 Remote sense: Connect +S/-S pins to load terminals to compensate for wiring voltage drop (max 0.5V)

6 Derating guidelines:

7 When output voltage <12V and ambient temp is -15~-30°C, derate output current to 90% of rated value

8 Follow derating curves for different ambient temperatures and input voltages to avoid overheating

9 Parallel operation:

10 Connect CS pins of all modules in parallel, ensure output voltage difference <0.2V between modules

11 Total output power must not exceed 1200W; max 6 modules in parallel (NMP1K2)

12 Use short, large-diameter wires for parallel connections; remote control must turn all modules ON/OFF simultaneously

13 Safety: Do not touch live parts when powered on; ensure proper grounding; comply with local electrical safety regulations

14 Maintenance: Regularly clean dust from the unit to prevent overheating; check for loose connections and abnormal noise/vibration

NMP1K2-EHHHCH-07-PDF数据手册-参考资料