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Littelfuse, Inc. Datasheets for Current Testers and Detectors

Current testers and detectors check for the presence of current flow in electrical circuits. They are also used to locate current in hidden wires and cables
Current Testers and Detectors: Learn more

Product Name Notes
The ECS Series of single-phase AC current sensors is a universal, overcurrent or undercurrent sensing control. Its built-in toroidal sensor eliminates the inconvenience of installing a stand-alone current transformer. Includes...
The ECSW Series of single-phase, AC window, current sensors includes adjustable overcurrent and undercurrent trip points. Detects locked rotor, jam, loss of load, an open heater or lamp load, a...