NEC® Changes · 2020 NEC®

406.13 Single-pole separable connectors

NewChanged in the 2020 NEC® (from the 2017 NEC®)· Updated October 24, 2026

What changed in 406.13

Single-pole separable connectors are now covered in the receptacle article, with rules for listing, color coding, interchangeability and connection order.

Point by point

  • They must be listed, labeled, and locking or latching, and marked with amp and voltage ratings and the maker.

The full lesson is in the Pro Version

Get the whole breakdown

  • 4 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

One membership unlocks every NEC® change lesson for 2020, 2023 and 2026, plus every video, quiz, flashcard and the Testing Center.

Checking your membership…

This section across NEC® editions

2020 NEC®NewYou're here

Single-pole separable connectors are now covered in the receptacle article, with rules for listing, color coding, interchangeability and connection order.

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 406

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.

NEC® and National Electrical Code® are registered trademarks of the National Fire Protection Association (NFPA). Electrical Exam Coach is not affiliated with or endorsed by NFPA.

Find it faster on test day

Get a code book that's already tabbed and highlighted.