A one-line diagram shows 42 kA of available fault current at a new switchboard. Which equipment characteristic must be coordinated with that value?
- Its interrupting and short-circuit ratings
- BIts branch-circuit count only
- CIts normal operating temperature for the NEC term and plan condition described
- DIts enclosure paint system
Why A is correct
Equipment intended to interrupt fault current needs adequate interrupting rating, and the assembled equipment must withstand the available fault current. Normal load rating alone does not establish fault suitability.