Quickly calculate transformer secondary fault current to size protective equipment and troubleshoot faults with confidence. This concise guide includes upstream source impedance so your calculations are accurate and actionable.
Quickly learn to calculate available fault current for emergency panels—including generator contribution—so you can properly size protective devices and keep systems safe and code-compliant.
Is your system really protected? Learn how transformer secondary fault duty stacks up against an AIC checker so you can choose the screening that prevents costly damage.
Need to quickly check fault levels in your wiring? Our Short circuit current calculator helps you determine cable fault currents per IEC standards in seconds, so you can design safer, compliant installations.