Rectifier (D.C. Power Supplies) - IGBT Based Rectifiers

RELIABLE’S make IGBT Rectifiers are designed to meet industrial application requirements. An insulated –Gate Bipolar Transistor (IGBT) uses relatively high frequency switching and pulse width modulation (PWM) technology for voltage and current regulation whilst a silicon controlled rectifier (SCR) uses relatively low frequency switching and phase shift technology.

RELIABLE’S make IGBT based Rectifiers are smaller in size and lighter in weight, more energy efficient and more cost effective compared to SCR & Rolling contact type Technology”

Application Field

The IGBT Rectifier is used for Plating, Anodizing, Electro polishing, Electrolysis, Electro winning, Electro Refining, Cathode Electro Deposition (C.E.D. Coating), Tinning, Electronic Cleaning, Pickling, Surface Coloring, Cathode Protection.


  • Inductive Heating
  • D.C. Heating
  • Single Phase AC Heating

Water Treatment

  • Waste Water Treatment
  • Sea Water Treatment

Technical Specification

Input Voltage 3 Phase, AC 380V, 480V, 415V, 220V ±10%, 50 -60Hz.
Output DC Voltage  Up to 400V
Output DC Current Up to 20000Amps.
Protection Class IP31, on request up to IP44
Efficiency ≥90% @ rated output
Power Factor ≥0.93 @ rated output
Ambient Temp. Max. 50˚C (Water Cooling)

Max. 40˚C (Forced Air Cooling)

Cooling Water or forced Air Cooling
Regulation Range Stepless at constant voltage or current 0-100%
 Control Precision Voltage / current less than 0.5%
Duty Ratio Continuous operation at rated loads up to 2000m altitude
Control Mode Constant Current / Voltage /Power(AHM)
Operation Mode Local/ remote
Relative Humidity 15% -85% RH
Interface RS485, RS232, MODBUS TPC, Profibus –DP, Profinet, Analogue 0-10V, Analogue 4 -2OmA
Parallel Connection No Limit
HMI Touch Panel or Digital Meters /buttons

Protection Features

  • Overheat
  • Output over voltage / under voltage
  • Output over current
  • Output short circuit
  • Cooling water pressure (Single Phase Protection)

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