Littelfuse, Inc. Monitor - Relay Output ECSW4MACT

The ECSW4MACT is a single-phase AC window current sensor in the ECSW Series, designed for overcurrent and undercurrent protection with a built-in toroidal sensor. It operates from 120VAC input with an adjustable overcurrent range of 2 to 20A and a trip delay of 0.150 to 7 seconds and includes a 1-second startup sensing delay. Output is an isolated 10A SPDT relay, switch-selectable for normally energized or de-energized operation, with latching or automatic reset. It accepts up to #4 AWG wire, mounts via two #6 screws, and measures 88.9 mm high, 63.5 mm wide, and 44.5 mm deep. The unit is encapsulated for protection against shock, vibration, and humidity, with ≥2500V RMS isolation, operates from -40°C to 60°C, and meets IEEE C62.41-1991 Level A surge requirements.