Protective Relay

Voltage Relay


  • Switching Mode Power Supply architecture
  • 3-phase 3-wire and 3-phase 4-wire selectable via DIP switch
  • multi-voltage selectable via DIP switch (please see table below)
  • Over Voltage trip point from 5 to 20%
  • Under Voltage trip point from 5 to 30%
  • Voltage Trip Delay from 0.1 to 30 sec.
  • Voltages Unbalance detection with a fixed 3 sec. trip delay
  • Voltages Unbalance trip point from 2~22% or turned off Phase Lost detaton with 0.2 sec. trip delay
  • Phase Reversal detection prior to load engagement or turned off via DIP switch
  • Auto reset time selectable between 1 and 5 sec.