A relay is an electrically operated switch that allows a low-power circuit to control a high-power circuit. At the heart of understanding how to use a relay effectively is the 4 prong relay wiring diagram. This diagram provides a visual representation of how to connect the relay terminals to the appropriate circuits, ensuring the relay functions as intended. The simplicity and versatility of a 4-prong relay make it a popular choice in various automotive, industrial, and hobbyist applications.
