MHK ISDB/Sensors/PGR-6101 Series Ground Fault Monitor

From Open Energy Information

PGR-6101 Series Ground Fault Monitor

Manufacturer: Littlefuse
Measurement Category: Electric & Power, Condition Monitoring
Operating Environment: Dry Enclosed Space
Mounting: DIN Rail

Power Supply Type: VAC
Power Specification: 120 VAC


The PGR-6101 combines the features of a ground-fault protection relay and insulation monitor into one unit. 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-6101 features two separate analog outputs for optional current and ohm meters, and two separate alarm relays. It operates on one- or three-phase solidly grounded, resistance grounded and ungrounded systems up to 6 kV.

Sensor Measurements

  • Resistance (LCR)
  • Ground Fault (Electronic Health)

Measurement Specifications
Adjustable GF Range: 30-200mA
Adjustable insulation pickup: 60-600 kOhm
Adjustable time delay: 50-250 ms

Notes, Considerations & Recommendations

Littelfuse has large variety of ground fault monitors.

User Experience

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