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 · 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.

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.

Aug 30, 2024 · What are relays? 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 …

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.

Jan 21, 2025 · A relay is an electrically operated switch that allows one circuit to control another, often with different voltage or current levels. It is used to isolate and protect low-power circuits or to control …

Feb 24, 2025 · What is a Relay? A relay is an electromechanical switching device that allows a low-power signal to control a high-power circuit. It is widely used in automation, electrical protection, and …