Littelfuse, Inc. Monitor - Relay Output ECSL41A

The ECSL41A is a single-phase AC current sensor with undercurrent sensing mode, designed for 120VAC operation. It features a built-in toroidal sensor, adjustable trip point range of 2-20A, and a trip delay of 0.150-7s with a sensing delay on startup of 0s. The device includes an isolated SPDT relay rated at 10A resistive at 240VAC, with mechanical and electrical life ratings of 1×10⁶ and 1×10⁵ cycles respectively. It is surface-mounted using two #6 (M3.5×0.6) screws and measures 88.9 mm H × 63.5 mm W × 44.5 mm D. The unit is encapsulated, operates from -40°C to 60°C, and has ≥2500V RMS input-to-output isolation.