Some manual motor starters use a special sensing coil that verifies the presence of incoming voltage to open the starter contacts when below a preset level. Is this statement true or false?

The statement is true because many manual motor starters are designed with a protective feature that includes a sensing coil. This coil monitors the incoming voltage and ensures that it is within an appropriate range before the starter contacts are allowed to close. If the voltage drops below a preset level, the sensing coil triggers the starter contacts to open, thereby protecting the motor from operating under inadequate voltage conditions, which could lead to inefficient operation or potential damage.

This feature is particularly important because low voltage can cause problems such as overheating and straining of the motor, leading to a risk of failure. Manufacturers incorporate such sensing coils for reliability and safety, ensuring that the motor will only operate when there is sufficient voltage present to support its needs effectively.