200.4 Neutral conductors
What changed in 200.4
The neutral rule didn't change. A new note points to 215.4, where feeders are allowed to share a common neutral.
Point by point
- The rule is the same: a neutral can serve only a single branch circuit, a single multiwire circuit, or a single feeder set, unless the code allows otherwise.
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Get the whole breakdown
- 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
The neutral rule didn't change. A new note points to 215.4, where feeders are allowed to share a common neutral.
2026 NEC®No change
This section did not change from 2023 to 2026.
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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