Phase Sequence / Failure

The phase sequence and phase failure protector trip relay is designed to monitor the correct phase rotation or sequence of a three-phase supply system. It provides protection against incorrect phase sequence, loss of one phase and under voltage. Two versions are available to suit either three-phase three-wire (PVR3) or three-phase four-wire (PVR4) systems.

Basic Parameters

  • Available with three voltage ranges 100-120V, 173-240V & 380-480V (Un)
  • Adjustable nominal voltage range
  • Power on LED (green)
  • Fixed differential (hysteresis) 1%
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Protector Trip Relay - Three Phase, 4 wire Phase Sequence/Failure PVR4 100/120V, 173/240V or 380/480V
Protector Trip Relay - Three Phase, 4 wire Phase Sequence/Failure PVR4 100/120V, 173/240V or 380/480V
The phase sequence and phase failure protector trip relay is designed to monitor the correct phase r..
£74.00