PHASE LOSS, PHASE REVERSAL & UNDERVOLTAGE PJPU-FA8X Series The PJPU-FA8X Series Three-Phase Monitor Relays continuously monitor all voltages to protect motors and equipment from expensive damage due to phase loss, phase reversal & undervoltage. They also provide an indication of a phase unbalance condition, but the relay does not trip.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. Protects against phase loss, phase reversal, undervoltage & rapid cycling Indication of Phase Unbalance (Relay Does Not Trip) 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 Full fault indication on top of unit for easy troubleshooting 5A SPDT/SPNO output provides isolated contact for alarm circuits True RMS voltage measurement ensures accurate sensing in most generator and other applications with non-sinusoidal wave forms, eliminating nuisance tripping. Full wave monitoring provides a more accurate method to measure the voltages, regardless of load type or wave shape, resulting in improved protection across more applications. Unlike similar three-phase monitor relays, the PJPU-FA8X 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 PJPU-FA8X Series is a true universal product that works on a wide variety of adjustable line-line voltages to cover more global applications. All other settings for undervoltage trip point, trip delay, restart delay and unbalance trip point are fixed for ease of setup. In addition to the standard SPDT output contacts, these products include an extra SPNO contact that provides an isolated output for alarm circuits. They utilize an industry-standard 8 pin octal socket, even with the extra SPNO output (see www.macromatic.com/fa8x). Operation: with appropriate socket 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. A fault condition of phase loss, phase reversal or undervoltage will de-energize the relay after a delay. Re-energization of the relay is automatic upon correction of the fault condition. NOTE: the relay will not trip (de-energize) on an unbalance condition, but the LED will provide a visual indication at 6% unbalance until correction of the fault condition. A bi-color status LED indicates normal condition and also provides specific fault indication to simplify troubleshooting. PJPU-FA8X Series PROTECTS AGAINST Phase Loss, Phase Reversal & Undervoltage (Unbalance Indication Only) LINE-LINE VOLTAGE 50/60 Hz 190-500V CATALOG NUMBER PJPU-FA8X WIRING/SOCKET 8 Pin Octal 70169-D Better. By Design. 800.238.7474 www.macromatic.com [email protected] 10 DIAGRAM 175 Phase-to-Phase (Line-to-Line). Requires a 600V-rated socket when used on system voltages above 300V. Dual range unit auto-senses between the 190-250V AC and 350-500V AC ranges (see Application Data on next page). Sockets & Accessories available three-phase monitor relays | plug-in
