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Digital voltage monitoring relay

Microcontroller based
LCD indication for operating voltage and status
Overvoltage, undervoltage, phase failure, asymmetry and phase sequence protection
45Hz~65Hz wide measuring frequency
Supply voltage measurement (True RMS)
Menu setting for protection parameters
Test and manual reset by keys
N phase failure protection for 3phase 4wire system
2 module DIN rail housing

Three phase voltage monitoring relay is used to protect the three-phase electric motors supplied from three-phase mains, against phase failure, incorrect phase sequence, voltage asymmetry, over and under voltage. 

RD-MVS series voltage relay are designedfor the three-phase system voltage controland load protection. It is possible to set minimum and maximum voltage, hysteresis, asymmetry and ON / OFFdelay.The LCD display and keyboard enableeasy parameters visualization and programming.