PMPU-FA8X - 

Macromatic's PMPU-FA8X Series Three-Phase Monitor Relays continuously monitor all voltages to protect motors and equipment from expensive damage due to phase loss, phase reversal, phase unbalance, undervoltage and overvoltage. These products detect single phasing and unbalanced voltages regardless of any regenerative voltages.
Utilizing an advanced microprocessor-based design allows true RMS voltage measurement with full wave monitoring. This provides a more accurate method to measure the voltages, regardless of load type or wave shape, and results in improved protection across more applications.

Features:

Universal voltage range of 190-500V—greater range that covers more global applications

True RMS voltage measurement ensures accurate sensing across more applications

Retains fault indication and continues monitoring all voltages even with a lost phase

Settings for undervoltage trip point, trip delay, restart delay and unbalance trip point are fixed for ease of setup

Full fault indication on top of unit for easy troubleshooting

Bi-color status LED indicates normal condition and also provides specific fault indication to simplify troubleshooting.

Plug-in case utilizing industry-standard 8 pin octal socket

Description of Function:
When the proper three-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. Re-energization of the relay is automatic upon correction of the fault condition. A bi-color status LED indicates normal condition and also provides specific fault indication to simplify troubleshooting.