A continuous overload is defined by which of the following scenarios?

A continuous overload occurs when the motor is consistently subjected to loads that exceed its design capacity. This scenario is critical to understanding motor protection because operating a motor beyond its rated load can lead to overheating, reduced efficiency, and ultimately, failure of the motor. When the motor consistently faces more load than it was designed to handle, it cannot dissipate heat effectively, leading to thermal stress and potential damage over time.

In contrast, operating within design limits, being occasionally turned off for cooling, or performing under ideal conditions describes situations where the motor is functioning correctly and efficiently, without the constant strain of excessive loads. Such conditions support the longevity of the motor and avoid the risks associated with overheating and mechanical failure.