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Home / Commercial Relays / Phase Failure Relays
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Phase Failure Relays

Phase Failure Relays

Phase Failure Relays
Phase Failure Relays - Image 2
Phase Failure Relays - Image 3
Phase Failure Relays - Image 4
Phase Failure Relays - Image 5
Phase Failure Relays - Image 6
Phase Failure Relays - Image 7

Datasheet

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$84.10

*Excluding GST
SKU ME-PFR-MV36M Category Commercial Relays

Phase Failure Relays are used to protect Motors and equipment against phase loss, over voltage, under voltage and phase sequence.

More Details


A Phase Failure Relay is a phase-voltage-balance monitoring device designed for use with magnetic contactors to automatically prevent three phase motors or other equipment from operating or attempting to start up under open phase or single-phase conditions, thereby eliminating burnouts and consequent down-time frequently incurred by phase failure.

Phase Failure Relay is not a thermal device. It operates on the principle of phase voltage unbalance which may occur in a three phase systems.

Applications include:

  • Motor control panels
  • Pump control panels
  • Air-conditioning systems

Features

  • Microcontroller based.
  • True RMS measurement
  • Select 3phase 3wire or 3phase 4wire mode by a knob.
  • N phase failure protection for 3phase 4 wire
  • 1NO+1NC output-8A
  • LED indication for supply and output state
  • 1 module (18mm) Width
  • Din-rail mounting
  • Standards:
  • EN60730-2-7:2011+AC:2012
  • EN60947-5-1:2004_A1:2009
  • EN60730-1:2012
  • Used for the detection of an abnormal condition on either the line side or load side in a branch circuit.
  • Used to detect a failure in three phase electrical supply that could cause damage to electric motors and motor control systems.
  • Adjustable overvoltage and under voltage detection and adjustable time delay allows for the unit to be modified to suit various site specific applications.

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