What can happen if an electronic overload relay fails to function properly?

If an electronic overload relay fails to function properly, it may lead to motor damage. Overload relays are designed to protect motors from overheating by detecting excessive current. When a motor operates under overload conditions, the relay should ideally trip to interrupt power to the motor, preventing it from running at unsafe levels that could cause overheating and potential damage to the windings or other components. If the relay malfunctions and does not trip when necessary, the motor may continue to draw excessive current, resulting in serious damage such as insulation failure, winding burnouts, or even complete motor failure. This focus on the protective function of the relay underscores the critical role it plays in maintaining the health and longevity of electric motors.