Medical 425W Power Supply

The MU425 family is designed to power the latest professional healthcare devices. All models meet 2 MOPP input-to-output isolation. Models are available with main output voltages of 12V, 18V, 24V and 48V. The MU425S Series is ideal for medical equipment needing to comply with the 4th Edition EMC standard, as it meets EN61000-4-2, EN61000-4-3 and EN61000-4-6 requirements for Home Healthcare Applications. Also included are features such as a 5Vsb output rated at 2A, a 12V fan output, DC OK signal, and an inhibit function.


  • 3.3in. x 6.2in. x 1.62in. Package
  • Ideal for 1U Applications
  • Up to 425W of AC-DC Power
  • 12V, 18V, 24V, 48V, 56V Outputs Available Standard
  • Universal Input 90-264 Vac
  • Approved to CSA/EN/IEC/UL60601-1, 3rd Edition
  • Meets EN61000-3-2, 3-3
  • Complies with EN61000-4-2, 3, 4, 5, 6, 8, and 11 - Heavy Industrial Levels
  • Isolated 5V@2A standby output
  • Isolated 12V fan output
  • Inhibit, Power Fail, DC OK Signals
  • Efficiency 90% typical
  • 3 Year Warranty
  • RoHS Compliant

Detailed Specifications

AC Input
100-240Vac, +/-10%, 47-63Hz
Input Current
115Vac: 5.2A, 230Vac: 2.5A
Inrush Current
40A max.
Input Fuses
F1, F2: 6.3A, 250Vac
Earth Leakage Current
<750uA@264Vac, 60Hz, NC
Turn On Time
<1 second
Holdup Time
>20mS (300W)
90% typical at 115Vac
Overload Protection
Hiccup Mode
Short Circuit Protection
Hiccup Mode
Overvoltage Protection
Voltage Adjustability
+/-5% from nominal
Total Regulation
+/-3% (Main Output)
Switching Frequency
75kHz typical.
4000Vac Input - Output, 1800Vac Input - Ground, 1500Vdc Output-Ground
Operating Temperature
-10 deg C to +70 deg. C, Start up at -40 deg. C
>300K hours