PGR-6100 Series - Ground-Fault and Insulation Monitoring Relay

Littelfuse Protection Relays PGR-6100 Motor Protection
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The PGR-6100 Ground-Fault & Insulation Relay is designed to provide basic protection for a motor, including ground fault protection and insulation monitoring. The fact that the PGR-6100 insulation monitoring relay has predictive as well as protective capabilities makes it unique. The ground-fault current and insulation resistance can be monitored using two separate meters. Two separate alarm contacts are also provided.



Adjustable GF pickup (10 mA - 3 A)

Trip setting provides a wide range of low-level protection and system coordination

Adjustable insulation pickup (250 kΩ - 2 MΩ)

Customizable insulation resistance setpoints for maximum protection

Adjustable time delay
(50 ms - 1.0 s)

Adjustable trip delay for quick protection and system coordination

Output contacts

Two Form C output contacts for ground fault and insulation-resistance fault

Analog outputs
(0 - 1 mA)

Two analog outputs indicate insulation resistance and ground-fault current

CT-Loop monitoring

Alarms when CT is not connected

Selectable contact operating mode

Selectable fail-safe or non-fail-safe operating modes allows connection to shunt or undervoltage breaker coil

Access specifications, certifications, check availability and order parts below

Catalog #Supply
PGR-6100-12012024Two Form C (N.O./N.C.)
PGR-6100-240240Two Form C (N.O./N.C.)

pdf icon PGR-6100 Datasheet

The PGR-6100 combines the features of a ground-fault protection relay and insulation monitor into one unit.

Littelfuse_ProtectionRelays_PGR 6100 Micon PGR-6100 Manual

Product manual for the PGR-6100 Motor Ground-Fault & Insulation Relay.

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