Panelboard labeling wrapper
Why you care (60 seconds)
Accurate directories reduce troubleshooting time and improve safety. Inspectors expect panelboard directories to be specific and legible.
Where people lose time
- Using vague labels like "lights" without room or area details.
- Forgetting to update labels after field changes.
- Mixing circuits across panels without a clear directory note.
This is
The rule in plain language
Panelboard circuits must be clearly identified so users can determine what each circuit controls without confusion.
When it applies
Any time you install or modify a panelboard and its circuit directory.
What you must do (checklist)
- Use specific, legible descriptions for each circuit.
- Update directories whenever circuits change.
- Keep directories accessible and consistent with as-built conditions.
Quick examples
- "Kitchen counter receptacles" is clearer than "kitchen".
- Mark a spare breaker as spare instead of leaving it blank.
This is not
Common misreads
- Assuming a panel schedule is optional if the work is small.
- Using contractor shorthand that an occupant would not understand.
What it doesn't cover
- Service disconnect labeling or equipment identification beyond the panel.
- Arc flash or industrial labeling requirements.
False friends
- A neat label is still noncompliant if it is inaccurate.
Exceptions & edge cases
- Multiple panels feeding the same area require extra clarity.
- Changes in tenant space may require re-labeling during turnover.
Cross-references (NEC map)
- Primary: 408.4
- Secondary: 110.22
Exam traps
- Overlooking that "specific" means more than a room name.
- Missing labeling requirements for panels in multi-occupancy settings.
Field notes
- Use printed labels for clarity and durability.
- Keep an updated panel schedule in the job closeout packet.
AHJ / Local amendments notes (placeholder)
- Add local amendments or interpretations here.
Revision notes
- Draft wrapper created for panelboard labeling fundamentals.