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SDU Off-Line DIN Rail UPS Series

The SDU Off-Line DIN Rail UPS series combines an industry leading compact design with a wide operation temperature range and unique installation options. This cost effective protection solution provides ride through during brief power outages. This allows critical and sensitive equipment to safely shut down during extended power failure preventing costly data losses, work interruptions and equipment damage. These units include easy to wire screw terminations for critical devices needing battery back up such as computer-based control systems.


  • Lightweight, compact industrial design
  • Wide operation temperature range (0-50°C)
  • Cold start capability
  • Phone/dataline surge protection
  • Software and cable included for easy installation
  • Simulated sinewave output
  • RS232 Communication Port
  • USB Communication Port (optional)
  • Form C Dry Contact Relay (optional)
  • Panel/Wall mounting brackets (optional)
  • Two-year warranty

PDF Files

SDU Off-Line DIN Rail UPS Specifications
SDU Off-Line DIN Rail UPS Manual
Mounting Bracket Manual
Relay Card Manual


SDU Off-Line DIN Rail UPS Series

Catalog Number Capacity (VA/W) Volts Typical Runtime Min.
SDU500 500/300 120 VAC 4
SDU850 850/510 120 VAC 2
SDU500-5 500/300 230 VAC 4
SDU850-5 850/510 230 VAC 2



Catalog Number Description
RELAYCARD-SDU Dry contact I/O relay box, IP20 touch proof screw terminals, wire size range 12-22 AWG (IEC 2.5mm); N.O./N.C. form "C" contact.  Relay contact signal for "On Battery", "Low Battery" and "UPS Shutdown"
UPSMON-USB RS232 to USB adapter cable
SDU-PMBRK Mounting brackets to secure UPS to wall, back of panel or enclosure

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