Short-Circuit Current Rating
What Is A Short-Circuit Current Rating (SCCR)?
SCCRs on components and equipment represent the maximum level of short-circuit current that the component or equipment can withstand and is used for determining compliance with NEC® 110.10. This rating can be marked on individual components or assemblies. The new SCCRs represent the maximum amount of fault current that the assembly can withstand under fault conditions. Assembly ratings take into account all components contained within the equipment rather than just the main overcurrent protective device.