What is stall protection in electric motors designed to do?

Stall protection in electric motors is specifically designed to disconnect the motor when it ceases to rotate under load. This situation typically occurs when the motor encounters an excessive load that it cannot overcome, leading to a condition where the rotor is unable to turn. If the motor continues to operate in this stalled state, it can draw a significant amount of current, which may lead to overheating and potential damage to the motor. By implementing stall protection, the motor's power supply is cut off, preventing this excessive current draw and protecting the motor from thermal overload and failure.

This function is crucial for maintaining the longevity and reliability of the motor, ensuring that it does not operate in a damaging stall condition for an extended period. The protective measure is an essential aspect of motor control systems, particularly in applications where motors operate under varying loads that could lead to stalling.