Table
Which Rating Applies: Breaker, Fuse, Panel, Control Panel
Which Rating Applies: Breaker, Fuse, Panel, Control Panel reference with assumptions and boundary notes.
Reference boundary
Equipment label mapping only. It does not choose equipment, calculate fault current, confirm series ratings, or approve substitutions.
Reference table
Map common equipment types to the short-circuit rating label users should look for first.
| Equipment type | Rating label | Label owner | Review use | Boundary |
|---|---|---|---|---|
| Molded-case circuit breaker | AIC / interrupting rating | breaker label | compare marked interrupting rating with available fault current | label mapping only; do not infer a rating where the equipment marking does not state one |
| Fuse | Interrupting rating | fuse label | compare marked interrupting rating with available fault current | label mapping only; do not infer a rating where the equipment marking does not state one |
| Panelboard | Short-circuit current rating or series-rated label | panelboard label and directory | confirm the panel and installed breakers match the rating label | label mapping only; do not infer a rating where the equipment marking does not state one |
| Switchboard | Short-circuit current rating | switchboard nameplate | confirm the assembly rating and installed protective devices | label mapping only; do not infer a rating where the equipment marking does not state one |
| Industrial control panel | SCCR | control panel nameplate | compare assembly SCCR with available fault current at the panel | label mapping only; do not infer a rating where the equipment marking does not state one |
| Disconnect switch | Withstand or short-circuit rating with fuse/breaker conditions | switch label and instructions | confirm required protective-device pairing | label mapping only; do not infer a rating where the equipment marking does not state one |
Use notes
- Use this table for preliminary reference and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.