706.15 ESS disconnects
What changed in 706.15
ESS disconnect rules moved to 706.15 and now cover location, locking, outdoor placement at homes, and marking with voltage, available fault current, an arc-flash label and the calculation date.
Point by point
- A disconnect is required for all ungrounded ESS conductors, and it can be built into the ESS.
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Get the whole breakdown
- 4 more points on exactly what changed
- The 2017 rule next to the 2020 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®RevisedYou're here
ESS disconnect rules moved to 706.15 and now cover location, locking, outdoor placement at homes, and marking with voltage, available fault current, an arc-flash label and the calculation date.
2023 NEC®Revised
A field-serviceable battery set apart from the ESS electronics now needs its own disconnect within sight, series string isolation over 240 V, remote-operation rules and a hazard label.
Open the 2023 page →2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 706
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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