440.11 A/C disconnect live parts
What changed in 440.11
Where unqualified people can reach an A/C disconnect, a door or cover that opens onto live parts now has to lock or need a tool.
Point by point
- New: covers live parts exposed when an A/C disconnect's door or cover is opened.
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- 2 more points on exactly what changed
- The 2020 rule next to the 2023 rule, side by side
- Why it changed
- What to do and check on the job
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This section across NEC® editions
2020 NEC®No change
This section did not change from 2017 to 2020.
2023 NEC®RevisedYou're here
Where unqualified people can reach an A/C disconnect, a door or cover that opens onto live parts now has to lock or need a tool.
2026 NEC®No change
This section did not change from 2023 to 2026.
More 2023 changes in Article 440
This is a plain-English summary, not the NEC®'s exact wording. Always check the full section in the NEC® edition your area has adopted, plus any local amendments.
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