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protection of the insulated conductors when they enter
any type of electrical component.
A new sentence has been added at 334.19 to provide
consistency with other abrasion protection requirements
when cable is installed in conduit or tubing.
Material taken from the National Electric Code
®
is reprinted with permission
from NFPA 70
®
, 2023 edition. National Electrical Code
®
, Copyright 2022,
National Fire Protection Association, Quincy, MA. All rights reserved.
NEC
®
Text
Revision/New
404.14(D), 406.3(D) Switches and
Receptacles with Push-In Terminals &
Wire Types
Leviton Comment: To simplify and condense
content in this guide we combine Articles 404.14(D)
and 406.3(D). The text is very similar except 404.14(D)
covers switches and 406.3(D) covers receptacles.
Change Summary
• Once again the NEC is addressing aluminum wire
(see 210.23 for more on this). The NEC also
clarifies push-in conductors used on snap switches
and receptacles.
Article 404 Switches
404.14 Rating and Use of Switches
(D) Snap Switch Terminations. Snap switch terminations
shall be in accordance with the following:
(1) Terminals of 15-ampere and 20-ampere snap switches
not marked CO/ALR shall be used with copper and copper-
clad aluminum conductors only.
(2) Terminals marked CO/ALR shall be permitted to
be used with copper, aluminum, and copper-clad
aluminum conductors.
(3) Snap switches connected using screwless terminals of
the conductor push-in type construction (also known as
conductor push-in terminals) shall be installed on not greater
than 15-ampere branch circuits and shall be connected with
14 AWG solid copper wire only unless listed and marked for
other types of conductors.
Article 406 Receptacles, Cord Connectors and
Attachment Plugs (Caps)
406.3 Receptacle Rating and Type.
(D) Receptacle Terminations. Receptacle terminations shall
be in accordance with the following:
(1) Terminals of 15-ampere and 20-ampere receptacles not
marked CO/ALR shall be used with copper and copper-clad
aluminum conductors only.
(2) Terminals marked CO/ALR shall be permitted to