Littelfuse, Inc. PGR-6101 Series – Ground-Fault and Insulation Monitor PGR-6101-120

The PGR-6101-120 is a ground-fault and insulation monitor for AC systems up to 6 kV, operating on 120 Vac control power. It mounts via DIN or surface mounting, with dimensions of 75 mm height, 100 mm width, and 115 mm depth. It features two Form C alarm relays, 0-1 mA analog outputs for insulation resistance and ground-fault current monitoring, selectable fail-safe or non-fail-safe contact modes, and standard CT-loop monitoring, harmonic filtering, test and reset buttons. It responds in less than 50 ms and is UL Listed (E183688) with a 5-year warranty. Required accessories include a PGC-5000 series ground-fault transformer and, for systems above 1,300 V, a PGH family high-tension coupler.