Short Circuit Current Calculator

Short circuit current (SCC) is the maximum current that flows in a circuit when a short circuit occurs. A short circuit happens when there is an unintended path of electricity with little to no resistance, causing excessive current to flow. The SCC is a critical parameter in electrical power systems, as it helps determine the fault level of a system, which is essential for selecting and designing electrical equipment, such as circuit breakers, fuses, and transmission lines.

As mentioned, this can understate fault current by 10–30%. For systems with many motors, always include them. short circuit current calculator