250W Medical Power Supply Open Frame
Medical Power Supply ( 250W, Single Output, 3"x5" with U-bracket )

Medical Power Supply-PW-M250B-1YXX0PU

Medical Power Supply ( 250W, Single Output, 3"x5" with U-bracket )

Power-Win is a professional power supply manufacturer located in Taipei, Taiwan. Starting with PC power supplies business in 1989, Power-Win extends its product lines into Desktop Power Supply, open frame power supplies, DC / DC ATX converters, and medical power supplies. With over 20 year experience in design, research, and manufacturing, Power-Win not only develops its own products to lead market trends and also works with customers for OEM / ODM projects. To meet latest energy saving demand and green power trend, we introduce more efficiency level V adapters and also open frame units to fulfill customer’s needs.
Etc. PW-M250B-1YXX0PU (Medical Power Supply)

*Medical 60601-1 3.1rd Edition approved
*High Power density, 250W in 3.2" x 5" footprint
*2 year warranty
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PDF Datasheet (186 KB)
*Dimension : L127 × W81 × H38.6 mm ( 5" x 3.2" x 1.52" )
*Weight : 0.5 kgs. ( 1.11 lbs. )
Electrical specifications
  • Input range : 90 - 264VAC
  • Frequency : 47 - 63Hz
  • Power Factor : > 0.95 @115VAC; > 0.90 @230VAC @full load
  • Inrush current : < 50A peak @115VAC; < 100A peak @230VAC cold start @25°C
  • Input current (rms) : 4A @115VAC; 2A @230VAC max.
  • Efficiency : > 85% typical @full load, 115VAC
  • Earth leakage current < 300uA @264VAC
  • Maximum output power (Po) : 250 Watts with 17.1CFM forced air cooling
  • Hold-up time : > 10ms typical @full load, 115VAC
  • Short circuit protection : Auto-recovery
  • Over load protection : 105% to 160% maximum rating, Auto-recovery
  • Over voltage protection : shutdown and latch off, A manual AC reset is necessary.
Safety standards
  • UL60601-1 3.1rd Edition
  • CSA-C22.2 No.60601-1 3.1rd Edition
  • EN60601-1 3.1rd Edition
  • IEC EN60601-1 3.1rd Edition
EMC standards
  • IEC60601-1-2 Ed4:2014
  • EN60601-1-2 Ed4:2015
  • FCC Part 18 Class B
  • EN 55011 Class B
  • CE
  • Operating temperature : 0 to +70°C (Derate linearly 2.5% per °C from 41 to 70°C)
  • Storage temperature: -20°C to +85°C
  • Humidity: Non-condensing 0% to 90%
  • MTBF : > 100,000 hours @full load and 25°C ambient temperature
Model No. Output
Maximum Load Po Output
Ripple & Noise
Convection 17.1 CFM Forced Air
PW-M250B-1Y120PU +12V 0A 16.67A 20.84A 250W ±5% 120mV
PW-M250B-1Y190PU +19V 0A 10.53A 13.16A 250W ±5% 190mV
PW-M250B-1Y240PU +24V 0A 8.34A 10.42A 250W ±5% 240mV
PW-M250B-1Y280PU +28V 0A 7.14A 8.93A 250W ±5% 280mV
PW-M250B-1Y300PU +30V 0A 6.67A 8.34A 250W ±5% 300mV
PW-M250B-1Y360PU +36V 0A 5.56A 6.95A 250W ±5% 360mV
PW-M250B-1Y400PU +40V 0A 5A 6.25A 250W ±5% 400mV
PW-M250B-1Y480PU +48V 0A 4.17A 5.21A 250W ±5% 480mV
1. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
2. Ripple and noise are measured at oscilloscope 20MHz bandwidth by a 47uF electrolytic capacitor and a 0.1uF ceramic capacitor in parallel at output connector.
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