NEC 2023 Article 240 — Overcurrent Protection

Updated Apr 17, 2026

Overcurrent device ratings, fuse/breaker sizing, and panel overcurrent protection. 240.4(D) small-conductor rule: 14 AWG → 15A max, 12 AWG → 20A, 10 AWG → 30A.

category

Electrical — Overcurrent

code body

NEC

code year

2023

adopted by

["ca-la","ca-sf","ca-sd","az-phx","nv-lv"]

source url

https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=70

SOURCES

🔗https://www.nfpa.org/codes-and-standards/all-codes-and-stand...

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