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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 A Relay is a simple electromechanical switch While we use normal switches to close or open a circuit manually, a Relay is also a switch that connects or disconnects two circuits
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
Understanding Relays: Confusing? Yes. Impossible? Heck No. The term “relay” is usually only mentioned when a component like a fuel pump or a fan stops working, or some new current-hungry device is being installed Because they’re literally small black boxes, many people are intimidated by relays But they’re really very simple If you understand
How Relays Work - HowStuffWorks Powered by electromagnets, a relay is simply a mechanical switch, and you'll find them all over a typical house or car Find out what these simple components are doing in all your electrical stuff