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Power tools

Release date:

2025-09-04

Source:

A contactor is an electrical control device that establishes an interactive relationship between a control system (also known as the input circuit) and a controlled system (also known as the output circuit). It is commonly used in automated control circuits and essentially functions as an “automatic switch” that uses a small current to control the operation of a much larger current. As such, it serves in circuits to provide automatic regulation, safety protection, and circuit switching.

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