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NPT40-M Series


45 to 55 W Medical AC-DC Power Supplies

The NPT40-M series of open-frame AC-DC power supplies comprises three triple output models, covering a variety of standard voltages from 3.3 V to 24 VDC. Each model accepts a universal input of 90 to 264 VAC or 127 to 300 VDC. All models feature ITE and medical safety approvals. The series is primarily intended for use in information technology equipment (ITE) and light industrial systems, as well as for equipment intended for non-patient contact and non-patient critical use in low power medical, dental and laboratory applications.


  • Inrush current 50 A max, 230 VAC input, cold start @ 25°C
  • Frequency 47 - 440 Hz
  • Safety ground leakage current 275 uA @ 50/60 Hz, 264 VAC input
  • Inrush current < 50 A peak @ 230 Vac, cold start @ 25°C
  • Maximum power 45 W for convection; 55 W with 30CFM forced air
  • Hold-up time 10/20 ms 115/230 Vac input line
  • Overvoltage protection 5.7 to 6.7 Vdc on the main output


  • Overload and short circuit protection
  • High MTBF
  • Built-in Class B EMI filter


Output Power (W): 55
Length (Inches): 4
Width (Inches): 2
Height (Inches): 1
Mounting Type: Embedded PSU
Minimum Output Current (A): 0.5
Maximum Output Current (A): 8
Output Voltage Range (V): -15V to 24V
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Stock Check

Model Number
Min. Voltage (V) Max. Voltage (V) Current (A) Nominal Voltage (V) Number of Outputs Samples Buy
NPT42-M Active, In Stock 5 5 8 5 3 Request Buy
NPT43-M Active, In Stock 5 5 8 5 3 Request Buy
NPT44-M Active, In Stock 5 5 8 5 3 Request Buy

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