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 …

Sep 11, 2024 · 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.

Everything you need to know about electrical relays - common applications, how they work, and how to use them.

The meaning of RELAY is a supply (as of horses) arranged beforehand for successive relief. How to use relay in a sentence.

May 17, 2024 · 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 …

Aug 30, 2024 · A relay is an electromagnetic switch operated by a relatively small electric current that can turn on or off a much larger electric current. The heart of a relay is an electromagnet (a coil of …

Aug 22, 2025 · A relay is an electromechanical or solid-state device that uses a small input signal to switch a larger load current. In simple terms, it works like a remote-controlled switch.

Sep 30, 2025 · Relay, in electricity, electromagnetic device for remote or automatic control of current in one (relay) circuit, using the variation in current in another (energizing) circuit.

Mar 8, 2024 · Learn how a relay works and how you can use it to turn on/off high-power devices with tiny signals. Includes practical circuit examples.

Definition of relay verb in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.