The PAP Series Three-Phase Monitor Relays continuously monitor all voltages to protect motors and equipment from expensive damage due to phase loss, phase reversal and undervoltage. 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.

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.

Unlike similar three-phase monitor relays, the PAP Series will continue to function even with a lost phase. They are the only line-powered units in their class to retain fault indication and continuous monitoring of all voltages during a phase loss, increasing the ease of troubleshooting and the level of protection.

The PAP Series have an adjustable undervoltage trip point of 75-95% of the lineline voltage setting. They utilize an industry-standard 8 pin octal socket.

Operation:
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 three fault conditions will de-energize the relay after a delay. Re-energization 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.

 

Features

• Protects against phase loss, phase reversal & undervoltage
• True RMS voltage measurement ensures accurate sensing across more applications
• Retains fault indication and continues monitoring all voltages even with a lost phase
• Full fault indication on top of unit for easy troubleshooting
• 10A SPDT output contacts

 

Downloads

Document	File Type	File Size	Download
PAP Series Datasheet	PDF	489 KB