430.122 Adjustable speed drive conductors
What changed in 430.122
New rule for sizing the conductors between an adjustable speed drive and its motor, with an exception for drives marked to protect those conductors.
Point by point
- New 430.122(B) covers the output conductors that run from the drive to the motor.
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Get the whole breakdown
- 3 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®RevisedYou're here
New rule for sizing the conductors between an adjustable speed drive and its motor, with an exception for drives marked to protect those conductors.
2023 NEC®No change
This section did not change from 2020 to 2023.
2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 430
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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