Custom Power Supplies
Custom Industrial Power Supplies

1U Hot Swap, 850 Watt
12V Single Output Power Supply

Product Description

1U, 850 Watt, single output, power factor controlled power supply designed to operate as a hot swap, redundant system.


  • 1U, High Density Design
  • Hot Swap, Redundant Operation1U Hot Swap, 850 Watt 12V Single Output Power Supply
  • Operating Temperature Range: 0º to +50º C
  • Voltage Input Range: 90-264VAC (nominal range)
  • Frequency: 47-63Hz
  • Phase: Single Phase, 2 wire plus ground
  • Inrush Surge Current: <35A (Cold Start)
  • Power Factor: 0.99
  • Hold-up Time: 16mSec min at 115Vac, at full rated load


  • Output Power: 850 Watt  
  • Output Voltage: 12Vdc*
  • Output Current: 70A
  • Line Regulation: +/-3.0% Typical
  • Load Regulation: ±5.0% Typical (No load to full load; nominal input)
  • Output Ripple/Noise: 120mV Typical (P-P; nominal input; full load; 20MHz bandwidth)
  • Set Point Accuracy: ± 1.0% of Output Voltage (Nominal input; full load; 25°C)
  • Transient Response: Output voltage returns to within 1% in less than 2.5mS for a 50% load change and the peak transient does not excess 5%.
  • Overshoot: Turn-on and turn-off overshoot should not exceed 5% over nominal voltage.

    **Alternate output voltages are available, consult factory for availability.
Electrical Characteristics
  • Efficiency: 82% Minimum (Measuring at 115Vac and full load)
  • Turn On Delay:1.5 second maximum at 120 VAC
  • Isolation Voltage:
  • Isolation Resistance: 10Mohms (Input to output)
  • Temperature Regulation: +/-2.0%/ºC (+/-.005%/ ºC max; over operating temp range)


  • Over Current Limit: ~115 to 120% of maximum rating. Auto-Recovery after removal of overload condition.
  • Over-Voltage Setpoint: ~115% of nominal main. Unit latched 1 minute, recycle AC input to reset at 25°C.
  • Short Circuit: Auto-Recovery after short circuit condition is removed.
  • Over temperature Protection: The power supply is protected for over temperature conditions with thermal shutdown. Auto-Recovery when temperature returns to normal.
  • Operating Temperature: 0º to +50º C (Conduction)
  • Storage Temperature: -25º to 85º C
  • Operating Humidity: 5% to 90% RH, Non-condensing
  • Storage Humidity: 5% to 95% RH, Non-condensing
  • Operating Altitude: Sea-level to 40,000 ft. in pressurized environment
  • Conducted EMI: EN55022, Class B
  • Cooling: Internal fans


  • Outline Dimensions: ~1.6" X 3.3" X 11.25" (H X W X L) – not including I/O connector  
  • Weight: ~1.75 lbs.
  • AC Input Connector:
  • Output Connector:
  • I/O Interface:
Controls and Alarms
  • Remote On/Off Control: N/A
  • LED “On” Status Signal: N/A
  • Input Power “Good” Signal: N/A
  • DC Good Signal: N/A


  • Unless otherwise specified the following test conditions apply: Ta = 25°C, constant active load applied to output, Vin = 115Vrms, 60Hz <1.25% sinusoid.
  • Some specifications have not been tested for actual compliance and can not be guaranteed to meet 100% compliance during system testing.
  • Product specifications subject to change without notice.
  • All rights reserved. Contents of this document may not be reproduced in any form without the prior written permission of DSC Power Solutions.
  • The information and specifications contained in this document are believed to be correct and accurate at the time of publication. DSC Power Solutions, Inc. accepts no responsibility for consequences arising from printing errors or inaccuracies pertaining to any use or application of this document.

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