they establish or interrupt the current flow in a circuit. The two major elementary components of a Motor Starter are Contactor and Overload Relay. To summarize the major functions of a Motor Starter include: Therefore it serves two major purposes – to switch the power automatically or manually to the motor and provide overload protection by preventing the motor from drawing heavy currents that may damage it.
Besides this, Motor Starter protects the motor from low overloads and faults. Motor Starter is electromagnetic switches designed primarily to control the electrical power supplied to a motor, which can be automatic or manual. Motor Starter is an electrical switching and protection device meant to safely start, stop, or protect a motor.
