Littelfuse, Inc. Monitor - Relay Output ECSW4MBHT

The ECSW4MBHT is a single-phase AC window current sensor in the ECSW Series, designed for overcurrent and undercurrent monitoring with adjustable trip points from 2 to 20 A and a trip delay range of 0.5 to 50 seconds. It operates on 120VAC, features a built-in toroidal current sensor, isolated SPDT output rated at 10A resistive at 240VAC, and includes switch-selectable latching or automatic reset, zero current detection, and normally energized or de-energized output modes. The device has a surface mount design with dimensions of 88.9 mm height, 63.5 mm width, and 44.5 mm depth, terminating in terminal blocks for up to #12 AWG wire. It is encapsulated, meets IEEE C62.41-1991 Level A surge protection, and operates from -40°C to 60°C with 95% non-condensing humidity. The sensing delay on startup is fixed at 6 seconds.