Littelfuse, Inc. Monitor - Relay Output ECSL4HBH

The ECSL4HBH is a single-phase AC current sensor in the ECS Series, designed for undercurrent monitoring with a 120VAC input voltage. It features a built-in toroidal sensor for direct wiring and adjustable trip point range of 2 to 20A with a trip delay of 0.5 to 50s and a sensing delay on startup of 6s. The device includes an isolated, 10A SPDT relay output rated for 1/2 hp at 250VAC, with encapsulated circuitry for protection against environmental stress. Mounting is surface-mount using two #6 (M3.5 x 0.6) screws. Physical dimensions are 88.9 mm height, 63.5 mm width, and 44.5 mm depth, with 0.25 in. (6.35 mm) male quick-connect terminals. Operating temperature ranges from -40°C to 60°C and storage from -40°C to 85°C.