ABB ECS41BC-SSAC Solid State Current Sensor Module is a 120 VAC, isolated single‑phase current sensor with a switchable SPDT output for protection and monitoring in industrial panels. Its built‑in toroidal sensor eliminates the need for a separate current transformer, while onboard adjustments let you select overcurrent or undercurrent sensing, set the trip point, and tune the startup delay. Designed for 50/60 Hz mains with a tolerance of -20% to +10%, the unit uses five 0.25 in (6.35 mm) quick‑connect terminals for input/output connections and mounts on a surface with two screws. The sensor range covers up to 50 A continuous current, with inrush capability to 300 A for up to 10 seconds, enabling detection of startup surges and transient overloads. The isolated SPDT relay provides load ratings of up to 10 A resistive at 240 VAC, or 1/4 hp at 125 VAC and 1/2 hp at 250 VAC, making it suitable for interlock or signaling applications in motors, heaters, or lighting circuits. Enclosed in a compact form factor measuring about 3.5 in high, 2.5 in wide, and 1.75 in deep, the module is rated for 95% non‑condensing humidity and weighs roughly 0.35 lb. The ECS41BC‑SSAC delivers a reliable, configurable current‑monitoring solution for single‑phase systems requiring rapid, discrete switching in response to current events.
