To safeguard motors from thermal overload, in case of mechanical stress, it is best to use a motor protection switch. Its fuseless construction makes the motor protection switch a very cost-efficient type of protection with a small footprint. It also makes sure that the motor is shut down very quickly in case of a short circuit. Even with one or two live wires failing, the motor protection switch will disconnect within milliseconds to protect the motor from harm.
Motor protection switches are also used as manual ON/OFF switches. Whenever it is necessary, whether triggered by yourself or by a faulty circuit, the motor protection switch will shut down the motor to prevent it from getting damaged.