What happens when the current exceeds the specified limits in an overload relay?

When the current exceeds the specified limits in an overload relay, the relay activates and disconnects power. This is a critical safety feature designed to protect motors and other equipment from damage due to excessive currents that can lead to overheating or failure. The overload relay monitors the current flowing through the motor and is calibrated to trip at a certain threshold. When this threshold is exceeded, the relay disconnects the power supply to the motor to prevent any potential damage or unsafe conditions.

This function is essential for maintaining the longevity of the motor and ensuring safe operational practices. The other choices present scenarios that do not occur in relation to overload relays; specifically, the motor would not continue operating normally, have an automatic increase in speed, or redirect current, as these would compromise safety and operational integrity of the equipment.