TE Connectivity Ltd. 256-PARU-LSBX-PQ-C6-EA Relay

256-PARU-LSBX-PQ-C6-EA is a Crompton Instruments Protector Trip Relay from TE Connectivity, designed for reverse-power protection in three-phase electrical systems. It is part of the 250 Series Protector Trip Relays and operates on 120 VAC at 60 Hz with a 5 A, 3‑wire, 3‑phase configuration using a push actuation. It provides reverse-power protection in the 2–20% range, tripping to isolate the circuit when reverse power is detected to safeguard generator paralleling and distribution equipment. Typical applications include generator-parallel protection and industrial feeder protection where a 3-phase, 3-wire interface and 120 V control are standard.