Breaking capacity

Breaking capacity

The breaking capacity gives the current that an electrical apparatus is able to interrupt without being destroyed or causing an electric arc with unacceptable duration. The rated breaking current which can occur under fault conditions should not exceed the rated breaking capacity of the apparatus. Otherwise breaking of the rated current current cannot be guaranteed.Breaking capacity current corresponds to a voltage, so an electrical apparatus may have more than one breaking capacity current, according to the voltage.

See also

* Breaking capacity of fuses
* Maximum prospective short circuit current

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