404.14 Switch ratings
What changed in 404.14
Switch terminals now have rules for copper, aluminum, copper-clad aluminum and push-in connections, and dimmers now share one load rule with timers and occupancy sensors.
Point by point
- Switches not marked CO/ALR take only copper or copper-clad aluminum wire.
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- 4 more points on exactly what changed
- The 2020 rule next to the 2023 rule, side by side
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This section across NEC® editions
2020 NEC®Revised
Switches must now be listed, the snap switch load list was edited, and the dimmer subsection was expanded to cover timers, occupancy sensors and other electronic control switches.
Open the 2020 page →2023 NEC®RevisedYou're here
Switch terminals now have rules for copper, aluminum, copper-clad aluminum and push-in connections, and dimmers now share one load rule with timers and occupancy sensors.
2026 NEC®No change
This section did not change from 2023 to 2026.
More 2023 changes in Article 404
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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