A device with overload protection used to control a motor is a:

A device with overload protection used to control a motor is a:

• A. Line starter
• B. Push button
• C. Contactor
• D. Fuse

Answer: (A)

Starting a motor safely requires both control and protection. A line starter brings both together: it provides the means to energize and de-energize the motor (through a control circuit and a heavy-duty switch) and includes overload protection that trips if current gets too high. This combination is exactly what protects the motor while letting you start and stop it as needed. A push button only offers a control input without protection. A contactor handles the high current but doesn’t inherently include overload protection. A fuse offers overcurrent protection but isn’t used to actively control starting and stopping. So the device with overload protection used to control a motor is the line starter.

Starting a motor safely requires both control and protection. A line starter brings both together: it provides the means to energize and de-energize the motor (through a control circuit and a heavy-duty switch) and includes overload protection that trips if current gets too high. This combination is exactly what protects the motor while letting you start and stop it as needed. A push button only offers a control input without protection. A contactor handles the high current but doesn’t inherently include overload protection. A fuse offers overcurrent protection but isn’t used to actively control starting and stopping. So the device with overload protection used to control a motor is the line starter.