Description
DESCRIPTION
3-phase monitor relay, 120 VAC, 8 pin plug-in, 10 Amp SPDT relay, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
When the proper 3-phase line voltage is applied to the unit and the phase sequence (rotation) is correct, the relay is energized after the Restart Delay is completed. Any one of five fault conditions will de-energize the relay after a delay. As standard, re-energization is automatic upon correction of the fault condition. Manual reset is available if an external momentary N.C. switch is connected to pins 6 and 7. A bi-color status LED indicates normal condition and also provides specific fault indication to simplify troubleshooting (see right).
FEATURES
Protects against phase loss, phase reversal, phase unbalance, undervoltage, overvoltage & rapid cycling True RMS voltage measurement ensures accurate sensing across more applications Retains fault indication and continues monitoring all voltages even with a lost phase Ultimate three-phase protection with a variety of user-selectable and adjustable settings Full fault indication on top of unit for easy troubleshooting Manual reset option works with external switch to reset the relay from outside the enclosure
RESOURCES
