What is the term for the continuous current that a circuit breaker can carry without overheating?

The term that describes the continuous current a circuit breaker can carry without overheating is referred to as rated current. This is a crucial specification in electrical engineering as it indicates the maximum amount of continuous electrical current that the circuit breaker can handle safely. Exceeding this rated current can lead to overheating, increased wear, and potential failure of the circuit breaker, compromising the safety and reliability of the electrical system.

In contrast, surge current refers to a sudden increase in electrical current that typically lasts for a brief period, unlike the continuous current associated with rated current. Peak current is similar to surge current but is more focused on the instantaneous maximum current level that a circuit might see momentarily, rather than a sustained flow. Maximum load generally refers to the greatest demand that a system or component can handle, which may include considerations beyond just the continuous operation of a circuit breaker.