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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 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
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 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
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
The Basics of Relays | DigiKey Relays play a vital role in countless consumer, commercial, and industrial applications and systems They are often employed in everyday systems without notice For example, relays are used when adjusting a household furnace, clicking a TV remote, or operating an elevator
Electrical Relays: How They Work and Their Applications An electrical relay is an electrically operated switch that uses an electromagnet to control one or more sets of contacts Relays allow a low-power signal to control a high-power circuit, providing isolation and control flexibility