An on-off switch with overload relays is commonly known as a:

An on-off switch with overload relays is commonly known as a:

• A. Magnetic control
• B. Manual starter
• C. Reversing starter
• D. Combination starter

Answer: (B)

Manual motor starter. It combines direct manual control with built-in motor protection: the operator uses the on-off switch to start or stop the motor, while the thermal overload relay monitors current and temperature and will interrupt power if the motor would be damaged by overload. This setup is common for simple direct-on-line control where automatic starting isn’t required. It differs from a magnetic starter, which uses a contactor controlled by another control circuit; a reversing starter, which adds circuitry to change rotation direction; and, while a combination starter can include both a contactor and an overload in one enclosure, the everyday term for an on-off switch with overload protection is manual motor starter.

Manual motor starter. It combines direct manual control with built-in motor protection: the operator uses the on-off switch to start or stop the motor, while the thermal overload relay monitors current and temperature and will interrupt power if the motor would be damaged by overload. This setup is common for simple direct-on-line control where automatic starting isn’t required. It differs from a magnetic starter, which uses a contactor controlled by another control circuit; a reversing starter, which adds circuitry to change rotation direction; and, while a combination starter can include both a contactor and an overload in one enclosure, the everyday term for an on-off switch with overload protection is manual motor starter.