NFM Series


  • Universal AC input / Full range 
  • Medical safety approved (2xMOPP)
  • Suitable for BF application with appropriate system 
  • consideration
  • Protections:  
    • Short circuit / Overload / Over voltage / Over temperature
  • No load power consumption <0.5W (<0.75W for 20W models)
  • Isolation class  II  (5~15W), class  I  (20W)
  • On-board type version available for 20W (optional)
  • Cooling by free air convection
  • Meet industrial, IT safety requirements
  • 100% full load burn-in test 
  • 3 years warranty

AC input voltage range

85~264VAC; 120~370VDC

Frequency range


AC inrush current (max.)

Cold start, 25A at 115VAC, 45A at 230VAC

( NFM-15: 30A at 115VAC, 50A at 230VAC )

( NFM-20: 30A at 115VAC, 65A at 230VAC )

DC adjustment range 

±10% rated output voltage 

Overload protection

 >105% hiccup mode, auto recovery

Over voltage protection

115%~135% rated output voltage, shut off, 

AC recycle to re-start

Over temp. protection 

Shutdown o/p voltage, recovers automatically 

after temperature goes down

Setup, rise, hold up time

NFM-5/15: 1000ms, 20ms, 100ms @ 230VAC

NFM-10: 1800ms, 20мс, 100ms @ 230VAC

NFM-20: 500ms, 20ms, 50ms @ 230VAC

Withstand voltage

I/P-O/P: 4kVAC, 1 minute

Working temperature

NFM-5/10/15: -20~+70°C 

NFM-20: -20~+60°C

Safety standards 

ANSI/AAMI ES60601-1, TUV EN60601-1,  

UL60950-1 (NFM-15) approved

EMC standards

EN55011, EN55022 class B, EN61000-3-2,3

EN61000-4-2,3,4,5,6,8,11, EN55024, 

EN60601-1-2, EN61204-3 Medical level, 

criteria A 


4 industrial pins for 5~15W

3P/4P/3.96mm pitch, Molex 41791-03/04 for 20W 


0.03kg ; 120pcs / 4.6kg / 0.97CUFT(NFM-05)

0.045kg ; 120pcs / 6.4kg / 0.97CUFT(NFM-10)

0.065kg ; 120pcs / 8.8kg / 0.97CUFT(NFM-15)

0.09kg ; 105pcs / 10.5kg / 0.97CUFT(NFM-20)