Relay - Wikipedia A relay is an electrically operated switch It has a set of input terminals for one or more control signals, and a set of operating contact terminals The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof
What Is Relay? How Relay Works? - Electronics Hub Instead of mechanical operation, a relay deploys an electrical signal to drive an electromagnet, which in turn engages or breaks (connects or disconnects) another circuit
How Electrical Relays Work - Circuit Basics A relay is an electromagnetic switch that opens and closes circuits electromechanically or electronically A relatively small electric current that can turn on or off a much larger electric current operates a relay
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