Name a common protection device used in motor control systems.

In motor control systems, a common protection device is a circuit breaker. Circuit breakers serve the vital function of automatically interrupting electrical flow in the event of an overload or short circuit, thus preventing damage to the motor and associated wiring. When the current exceeds a predefined limit, the circuit breaker 'trips,' cutting off the electrical supply. This capability not only protects the motor but also enhances the safety of the overall electrical system.

While fuses are also a protective device, they are not resettable and must be replaced once they blow, making circuit breakers generally more convenient in motor control applications. Transformers are used primarily for voltage adjustment and do not provide protection. Inductors are components that store energy in a magnetic field but do not serve a protective function in this context. This distinction highlights why circuit breakers are preferred for protecting motors in various applications.