An automotive relay is an electrically operated switch that allows low-current signals to control high-current circuits. It consists of an electromagnet, a set of contacts, and a spring. When an electrical current flows through the electromagnet, it generates a magnetic field that causes the contacts to either open or close, completing or interrupting the circuit. This process allows the relay to control various high-power components like lights, motors, and fuel pumps, without the need for large wires or complex switch mechanisms.

    Types of Automotive Relays