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Motor Starters

Electrical devices control the work of electric motors. They essentially consist of a starter, an overload relay, and a control circuit. The starter begins and stops the motor's operation; it connects and disconnects the motor to the power supply. The overload relay provides overload protection and safeguards the motor from too much current by monitoring its levels. If there is too much current flowing to the motor—indicating that something has gone wrong—an automatically spring-loaded switch will open (disconnect) the motor lead or leads to prevent overheating or catastrophic failure.

The safe operation of electric motors is dependent upon the use of electric motor starters. They prevent the motor from consuming too much power and offer control over its rate of speed. Additionally, motor starters allow for a multitude of control functions to be integrated into the system that uses the motor. For instance, some types of motor starters have auxiliary switches that enable additional devices or systems to be controlled in conjunction with the motor.