how does a 4 pin relay work

A 4 pin relay is an electromechanical switch that is used to control electrical circuits. It consists of a coil with 2 pins for the input power source, and a set of 2 pins for the output circuit. When power is supplied to the coil, it creates a magnetic field that pulls the switch mechanism, completing the circuit and allowing the flow of electricity through the output pins. The 4 pin design allows for the relay to be easily integrated into various electrical systems, making it a versatile and essential component in automotive, industrial, and household applications. It is commonly used for controlling lights, fans, motors, and other electrical devices. With its compact size and efficient operation, the 4 pin relay provides a reliable and convenient solution for controlling electrical circuits. It is a crucial component for ensuring safety and efficiency in electrical systems.