The ability of a fuse or circuit breaker to open under the ____ fault current is expressed as the interrupting rating of the device.
A) maximum
B) minimum
C) average
D) required

Question

Quizplus · Accepted Answer

The interrupting rating of a fuse or circuit breaker is its ability to interrupt or open under the maximum fault current that may occur in the system. Choosing the correct interrupting rating is crucial for the protection and safety of the electrical system and its components.

The Ability of a Fuse or Circuit Breaker to Open