Phase Sequence Failure and Under Voltage

Phase Sequence/Failure Relays
Monitors for 3-phase supplies. The devices are manufactured in orange housings to the dimensional requirements of DIN 43 880. They are suitable for fitting onto symmetrical DIN mounting rail in control panels or for use in purpose built enclosures, 3-phase distribution boards, etc. An instruction leaflet is supplied with each monitor. The output relay energies when all phases are present, the sequence is correct and the phase voltages are above the trip level/threshold set on the unit. The relay will de-energise if a phase ( or neutral on 4-wire) is lost, the sequence is incorrect or if one or more phases fall below the trip level/threshold.

B1PR - Phase Sequence/Failure and Under-Voltage Relay
M3PR - Phase Sequence/Failure and Under-Voltage Relay
M3PR-4W - Phase Sequence/Failure and Under-Voltage Relay 4 wire
B8PM -Phase Sequence/Failure and Under-Voltage Relay
B8PM/2 - Phase Sequence/Failure and Under-Voltage Relay
B8PR - Phase Sequence/Failure and Under-Voltage Relay
B1PR - Phase Sequence/Failure and Under-Voltage Relay
B1PRF - Phase Sequence/Failure and Under-Voltage Relay
45081 - Phase Sequence/Failure and Under-Voltage Relay