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AC Current Sensor Has Adjustable Trip Points

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The ECSW Series of single-phase, AC current sensors offers adjustable overcurrent and undercurrent trip points ranging from 0.5 to 50A in three ranges and comes with a fixed or adjustable trip delay of 0.15 to 50 seconds in two ranges. The sensors are designed to detect faults such as locked rotors, loss of load, and an open heater or lamp load. They have a built-in toroidal sensor that eliminates the need for an external current transformer, while on-board LEDs aid in the adjustment of trip points and provide fault indication. The output relay can be electrically latched after a fault or automatically reset. Remote resetting of a latched output is accomplished by removing input voltage. The ECSW series also includes switch-selectable zero current detection and normally de-energized or energized output operation and is available in input voltages of 12 or 24 Vdc and 24, 120 or 230 Vac. Other features include: an isolated SPDT relay output with contacts rated at 10A resistive at 240 Vac, 1/4 hp at 125 Vac and 1/2 hp at 250 Vac; and UL Recognized, CSA Certified and CE approved ratings. Price: $63.10 each/100.

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