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How many faults can a breaker interrupt?

What number of short circuits or faults are Square D breakers rated to interrupt?

Product line:  
Circuit breakers

UL489 listed circuit breakers

This is a summary of what breakers do for UL489.  Requirements vary, so please refer to the UL489 for complete details.

The circuit breaker is operated making and breaking 600% of its continuous current rating, but not less than 150 ampere.  For circuit breakers through 1600 ampere, the number of 600% operations is 50.  For larger circuit breakers to 4000 ampere, the number of operations is 25.

Short Circuit (typically around 10 to 12 times handle rating): 
For circuit breakers rated 240 Vac and higher, two short circuit tests per pole and one test with all poles connected in series is performed.  For example, a 3-pole circuit breaker receives seven short circuit tests.

High Available Fault Current Tests (twice at interrupting rating):  
After qualifying a set of circuit breakers to the standard tests, a manufacturer can have additional circuit breaker samples tested on higher than standard available fault currents.
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