About Relay

A relay is a component that has the function of a switch that turns on/off the electrical circuit in the subsequent stage according to an electrical signal received from the outside. In Japanese, it is called a "relay". Unlike manual controls, such as lights that are turned on and off with a push button, automatic controls require electrically actuated contacts. For this, a relay whose contacts are operated by the force of electromagnetic force is used. A relay is a device that opens and closes an electric circuit using electromagnetic force, and can control even large loads depending on the set capacity. Also called an electromagnetic relay.