You did not include enough information to provide an answer which is applicable to your situation.
Circuit breakers are tested and then listed based on:
Rated voltage
Applied voltage
Frame size
Trip unit type
Rated continuous current
Applied continuous current
Rated short circuit fault current
Applied short circuit fault current
Short circuit impedances
Type of fault (i.e. bolted, three phase)
Number of poles clearing the fault
Also you need to include the electrical and mechanical history of your breaker. This history should include the number of no-load operations, the number of full-load operations, and the number of short circuit operations.
In general, I believe breakers are only "rated" for 2 operations at their maximum short circuit rating.
