کلید

Also known as switch, electric switch

thumb|upright=1.4|Electrical switches. Top, left to right: circuit breaker, mercury switch, wafer switch, [[DIP switch, surface mount switch, reed switch. Bottom, left to right: wall switch (U.S. style), miniature toggle switch, in‑line switch, push-button switch, rocker switch, microswitch.]]

AI overview

An electrical switch is a device that controls the flow of electric current by opening or closing a circuit, and they come in many different types and sizes depending on their intended use. Switches matter because they allow us to safely turn electrical devices on and off, and to control when electricity flows through our homes, appliances, and equipment.

AI-generated from the Wikipedia summary — may contain errors.