What effect does an activated overload circuit have on the motor operation?

When an overload circuit is activated, it typically serves as a protective mechanism designed to prevent damage to the motor. The primary effect of activation is the automatic deactivation of the motor. This occurs when the current flowing through the motor exceeds a predetermined safe level for a specified duration. By interrupting the power supply, the overload circuit helps to avoid overheating, electrical failures, and potential burnout of the motor windings.

This automatic shutdown is crucial in maintaining the health and longevity of the motor, ensuring it operates within safe parameters. The other potential effects, such as continued normal operation, increased motor speed, or strengthened electrical signals, do not align with the function of an overload circuit, which is primarily concerned with safety and prevention of damage rather than enhancing performance or operational efficiency.