705.11 Supply-side connections
What changed in 705.11
New 705.11 covers tapping a power source in ahead of the service disconnect, with rules on output limits, conductor size, overcurrent protection, connections and ground-fault protection.
Point by point
- Supply-side connections now have their own section, 705.11, instead of a short paragraph in 705.12(A).
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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®NewYou're here
New 705.11 covers tapping a power source in ahead of the service disconnect, with rules on output limits, conductor size, overcurrent protection, connections and ground-fault protection.
2023 NEC®Revised
Supply-side connections now list three allowed methods and treat the tap conductors as service conductors, with clear rules for sizing, splices, disconnects, bonding and overcurrent protection.
Open the 2023 page →2026 NEC®Revised
Service connection rules were trimmed, Article 268 applies above 1000 volts, and length limits are back inside buildings: 10 ft at dwellings, 16.5 ft elsewhere, 66 ft with cable limiters.
Open the 2026 page →More 2020 changes in Article 705
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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