NEC 2026 — Articles 210, 215, 230, 430, 422 · Overcurrent Protection per 240.6(A)
Load Type
General lighting & receptacle
Valid for: NEC 210.20(A) / 215.3 / 230.42(A)
Enter load as
NEC 210.20(A) — Continuous ≥ 3 hrs
Continuous Load (A) — operated ≥ 3 hrs
Non-Continuous Load (A)
Recommended Breaker Size
NEC 240.6(A) Standard Sizes
Enter the inputs on the left to see the recommended breaker size.
Disclaimer — Important
This calculator is an independent tool intended to assist electrical professionals. It provides general guidance based on NEC 2023 (NFPA 70) for educational and estimation purposes only. Calculated breaker sizes represent minimum or maximum values derived from the referenced NEC articles and tables, and do not account for all conditions of use, local amendments, authority having jurisdiction (AHJ) requirements, or project-specific engineering judgments.
Results must be verified by a licensed electrical engineer or electrician and reviewed against the full NEC text, equipment listings, manufacturer specifications, and applicable local codes before use in design, permitting, or construction.
This calculator does not size conductors (Article 310), evaluate voltage drop (Article 215), assess equipment short-circuit current ratings (SCCR), or address all special occupancy or equipment requirements. Always consult the current edition of NFPA 70 and the AHJ before finalizing any electrical design.
NEC® and NFPA 70® are registered trademarks and copyrighted publications of the National Fire Protection Association. Users should verify all results against the adopted code edition and local amendments.