Article 100 Receptacle.

How many total receptacles are shown here?
Click to Enlarge
How many total receptacles are shown here?

Code Change Summary: Revised definition of a receptacle and new informational note.

During the 2020 NEC code process, there were many public inputs (code change proposals) to clarify the definition of a receptacle. It seems that many code users thought that a duplex receptacle was considered one receptacle when in fact a duplex receptacle has always been two receptacles on the same mounting strap.

It is critical to know that a duplex receptacle is considered two receptacles when applying NEC Section 210.21, 210.23 and 210.24. The tabs can be removed to allow most duplex receptacles to be supplied from two separate circuits or a multiwire branch circuit as long as the circuits can be simultaneously disconnected in accordance with Sections 210.4(B) and 210.7.

In the 2020 NEC the definition of a receptacle has been expanded to clarify that a “yoke” is the mounting strap and the new informational note makes it clear that a duplex receptacle is two receptacles on the same strap.

Below is a preview of the NEC. See the actual NEC text at NFPA.ORG for the complete code section. Once there, click on their link to free access to the 2020 NEC edition of NFPA 70.

2017 Code Language:

Article 100.

Receptacle. A contact device installed at the outlet for the connection of an attachment plug, or for the direct connection of electrical utilization equipment designed to mate with the corresponding contact device. A single receptacle is a single contact device with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke.

2020 Code Language:

Article 100.

Receptacle. A contact device installed at the outlet for the connection of an attachment plug, or for the direct connection of electrical utilization equipment designed to mate with the corresponding contact device. A single receptacle is a single contact device with no other contact device on the same yoke or strap. A multiple receptacle is two or more contact devices on the same yoke or strap.

Informational Note: A duplex receptacle is an example of a multiple receptacle that has two receptacles on the same yoke or strap.

Did You Like This? Let Us Know With A Like! Thanks!

Article 100 Receptacle.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

Based on the 2020 NEC, which of the following is true?

A: A duplex receptacle is an example of one receptacle.
B: Duplex receptacles are not permitted for use on multiwire branch circuits.
C: A duplex receptacle is an example of a multiple receptacle that has two receptacles on the same yoke or strap.
D: A duplex receptacle is a single contact device with no other contact device on the same yoke or strap.
Please register or sign in for electrical continuing education courses.

If you were already signed in, your session probably expired, please sign back in.