Littelfuse, Inc. PGR-4700 Series – Sensitive Ground-Fault Relay PGR-4700-240

The PGR-4700-240 is a sensitive ground-fault relay with 240 Vac control power, designed to detect low-level leakage currents in solidly grounded systems to prevent equipment damage. It features adjustable trip settings from 10 mA to 3.0 A and time delay settings from 0 to 1.5 seconds, with standard harmonic filtering and CT loop monitoring. The relay has two Form C contacts, a conformally coated option available upon request, and meets UL listing E183688. It is mounted on DIN or surface panels using a PMA-55 or PMA-60 adapter, with dimensions of 75 mm height, 55 mm width, and 115 mm depth. The product includes a test button, reset button, and selectable fail-safe or non-fail-safe contact operating mode.