Littelfuse, Inc. PGR-3200 Series – Ground-Fault & Insulation Monitor PGR-3200-120

The PGR-3200-120 is a ground-fault and insulation monitor designed for ungrounded AC systems up to 6 kV, operating on a 120 Vac supply. It features two Form C output contacts for insulation warning at 50 kΩ and alarm at 10 kΩ, an analog output of 0-1 mA for external metering, and local and remote reset capability. The device mounts on DIN rail or surface, measures 75 mm high, 100 mm wide, and 115 mm deep, and meets NEC Article 250.21(B) and Canadian Electrical Code Section 10-106(2). It is UL Listed (E183688) and includes a test button. A PGH Series high-tension coupler is required for systems above 1,300 V. The relay operates in non-fail-safe mode and is covered by a 5-year warranty.