A motor starter relay is a type of electromagnetic switch that is activated by an electrical current. It serves as the interface between the control circuit and the motor itself. When the relay is energized, it closes or opens specific contacts in the motor’s control circuit, allowing or interrupting the flow of electrical power to the motor. The relay typically includes overload protection, short circuit protection, and sometimes even a time delay function to ensure smooth motor operation.

    Functionality of a Motor Starter Relay

    The primary function of a motor starter relay is to facilitate the safe and controlled operation of an electric motor. Motor starter relays control when a motor starts and stops, while also protecting it from electrical faults.