KRM72x – Phase Failure / Sequence Relay

$ 485.00

KRM72x – Phase Failure / Sequence Relay
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Description

KRM72x

Phase Failure / Sequence Relay

  • Phase failure
  • Phase Imbalance
  • Incorrect Phase Sequence
Description
KRM72x monitors three phase AC supplies for incorrect phase sequence, phase failure and phase imbalance on systems up to 500V.
Operation
A sensitivity adjustment on the top of the unit allows adjustment up to 50% of the phase to phase voltage. The minimum level is selected to avoid any nuisance tripping due to normal variations in voltages.
A factory set delay of approximately two seconds prevents tripping due to transients. The unit is factory set for 50Hz or 60Hz. It is available as a 50/60Hz variation with associated loss of sensitivity.

Additional information

Weight 2 lbs
Dimensions 9 × 9 × 9 in
Model

KRM721 Phase Failure / Sequence Relay 100-120VAC, KRM722 Phase Failure / Sequence Relay 200-240VAC, KRM725 Phase Failure / Sequence Relay 380-500VAC