What is short-circuit protection?
If there’s excessive short-circuit current, protective devices like fuses and circuit breakers are designed, tested, and rated to interrupt specific maximum levels of this current. If the available short-circuit current exceeds the rating of the protective device, the device is likely to fail catastrophically when it attempts to interrupt a fault. Such a failure would result in downtime and extensive repair, and it could unnecessarily expose personnel to injury (Photos 3 and 4).
