Littelfuse PGR-6100-240, PGR-6100 Series, Ground-Fault & Insulation Monitor, 240VAC

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The PGR-6100 monitor combines the features of a ground-fault protection relay and insulation monitor into one unit. The monitor can detect a motor ground fault whether the motor is running (online mode) or stopped (offline mode). It protects against ground faults by monitoring insulation resistance when the motor is de-energized and by monitoring ground-fault current when the motor is energized. The PGR-6100 features two separate analog outputs for optional current and ohm meters and two separate alarm relays. The unit operates on one- or three-phase solidly grounded, resistance grounded, and ungrounded systems up to 6 kV. Selectable fail-safe or non-fail safe operating modes allow connections to shunt or undervoltage breaker coils. The PGR-6100 is unique in that it has predictive as well as protective capabilities. Pre-order 6-8 Weeks Specifications IEEE Device Numbers Ground Fault (50G/N, 51G/N), Ground detector (64), Alarm Relay (74) Input Voltage See ordering information Dimensions H 75 mm (3”)W 100 mm (3.9”)D 115 mm (4.5”) Response delay < 250 ms Contact Operating Mode Selectable fail-safe or non-fail-safe Harmonic Filtering Standard feature Test Button Standard feature Reset Button Standard feature CT-Loop Monitoring Standard feature Output Contacts Two Form C Analog Output 0-1 mA Applicable Standards UL Listed (E183688) (1) Warranty 5 years Mounting DIN, Surface Certification & Compliance UL UL Listed (E183688) (1) Show more