Clause-by-clause translation of NEC Article 230: service conductors, main disconnect (up to 6 motions), ratings by load, ground-fault protection above 1000 A.
| Document | NEC 2023, Article 230 Services |
| Edition | 2023 |
| Status | Current (latest NEC edition) |
| Issued by | NFPA |
| Applies to | Services: disconnects, location, ratings |
| № | Chapter / section |
|---|---|
| 230.1–230.10 | General |
| 230.40–230.51 | Service conductors |
| 230.62–230.71 | Main disconnect |
| 230.79–230.95 | Ratings and protection |
Article 230 covers services — from the utility connection to the main disconnect.
230.42 Service conductors ≥ 83% of the main breaker rating for dwellings 120/240 V.
230.70 At a readily accessible, visible location near the building entry.
230.71 Up to 6 disconnects (motions) allowed.
230.79 Dwellings: ≥ 100 A for 6+ circuits; 60 A for 4–5; 30 A for 1–2.
230.95 Ground-fault protection for services over 1000 A.
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