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UR4 Unregulated Rectifiers

Standard Features

  • Design for Maximum reliability
  • Negligible input harmonics
  • Hi / Low Voltage Alarm (Rectifier Failure)
  • AC Fail with indication and Form C relay
  • Automatic Equalize after discharge
  • AC Breaker 2 Pole for Single phase, 3 Pole for 3 Phase
  • Manual Float – Equalize override
  • DC Breaker 2 Pole 
  • DC Ammeter
  • DC Voltmeter
  • MTBF 100,000 Hours
  • Designed for parallel operation with other rectifiers
 ur4

Specification

Regulation: < 0.5% for input variation of 10%
Short Circuit Protection: Electronic SCP
Enclosure: NEMA 1
Efficiency: > 90%
Power Factor: > 0.85
Soft start: Electronic soft start
Ripple: 4% (2%, 1% optional)
Operation:
 0-50 Degree Celsius
(-40 Degree Operation Optional)
Operation Mode: Constant Current with adjustable Voltage limit
Cooling: Natural Convection, Forced air (High Power), Vortex cooling Optional
Cabinet: Wall mount, Rack mount, Floor mount
Rating dependant (Stainless Steel Optional)

Input / Output / Approval

Input Voltage: 120, 220, 380, 480, 575, 690, Custom
1 / 3 Phase
50/60 Hz
Output Voltage: 12, 24, 48, 125, 250, Custom
Approvals: CSA, CSA us (UL)

pdf format UR4 Unregulated Rectifiers Brochure (PDF 96 KB)