The Voltage Line-Line knob on the PJPU-FA8X has two ranges (left): a 190-250V low voltage scale and a 350-500V high voltage scale. The unit auto senses the three-phase line-line voltage when applied and automatically selects the appropriate range.
Power Consumption
Less than 40VA.
Phase Loss
Unit trips on loss of any Phase A, B or C, regardless of any regenerative voltages.
Phase Reversal (Out-of-Sequence)
Unit trips if sequence (rotation) of the three phases is anything other than A-B-C. It will not work on C-B-A.
Undervoltage
Fixed at 90% of the line voltage setting. Unit trips when the average of all three lines is less than the set point for a period longer than the fixed 4 second trip delay. It will reset at +3% of the Undervoltage trip setting.
Phase Unbalance
Fixed at 6% unbalance. 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 fault.
Response Times
Restart: 2 seconds fixed; Drop-out Due to Fault: Phase Loss and Reversal: 100ms fixed; Undervoltage: 4 seconds fixed
Output Contacts
SPDT/SPNO 5 A @ 277V AC / 5A @ 30V DC; 1HP @ 250V AC, 1/2HP @ 125V AC, C300 Pilot Duty
Life
Mechanical: 10,000,000 operations; Full Load: 100,000 operations
Temperature
Operating: -28o to 65oC (-18o to 149oF) Storage: -40o to 85oC (-40o to 185oF)
Mounting
Uses an 8 pin octal socket. Requires a 600V-rated socket when used on system voltages greater than 300V such as Macromatic Catalog Number 70169-D.
Reset
Automatic upon correction of fault.
Series Features
PJPU-FA8X Series PHASE LOSS, PHASE REVERSAL & UNDERVOLTAGE
Series Description: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.
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
Operation:5A SPDT/SPNO output provides isolated contact for alarm circuits
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
RoHS Compliant