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SESK: Stuff Everyone Should Know · sesk.info/solar-rapid-shutdown-2014-nec

In which edition of the National Electrical Code did PV rapid shutdown rules first appear?

The 2014 NEC, with changes in later editions.

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  1. 1996
  2. 2014 ✔
  3. 2023

Why: Rapid shutdown first appeared in the 2014 NEC and was revised in 2017 and later. What applies to your home depends on which edition your area has adopted.

Huh, didn't know that: The original 2014 rule required controlled PV conductors to drop to 30 volts or less within 10 seconds of shutdown.

The dad joke
The code book keeps getting updated. Electricians call it staying current.
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References

Answer: 2014. Rapid shutdown first appeared in the 2014 NEC and was revised in 2017 and later. What applies to your home depends on which edition your area has adopted.

  1. EC&M: Rapid Shutdown Requirements for Photovoltaic Systems www.ecmweb.com/neca-show-coverage/article/20901472/rapid-shutdown-requirements-for-photovoltaic-systems
    Rapid shutdown requirements were first introduced in the 2014 Edition of the National Electrical Code (NEC).
    Checked 2026-10-10.

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