Types Of Automotive Relay Guide: 3, 4 & 5 Pin 12 Volt Relay

Automotive relay is an electromagnetic switch that is used to control a circuit through a low-voltage signal. This kind of relay is often used in automobile applications, such as headlights, horns, and starter circuits. The relay allows the control circuit to be isolated from the load circuit, which can be useful in preventing electrical shorts and protecting the control circuit from high currents.