406.3(F) Receptacle with USB Charger.

Here is a listed tamper-resistant receptacle with Class 2 circuitry integral to the receptacle.
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Here is a listed tamper-resistant receptacle with Class 2 circuitry integral to the receptacle.

Code Change Summary: A new code subsection was added to address receptacles equipped with a USB charger.

This new code change was added to provide requirements for new products currently available in the marketplace. Receptacles with USB chargers have been available for quite some time now but until the 2017 NEC®, the code was silent with no specific requirements for the product.

Many phones and tablets are charged via a USB type connection. Installing a receptacle equipped with a USB charger can help to reduce the number of Class 2 chargers continuously plugged into a standard receptacle day in and day out. Requiring listing of the devices ensures specific product safety standards are observed.

A receptacle with a USB charger should not be confused with a trim plate with a USB charger covered in Section 406.6(D).

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 2017 NEC® edition of NFPA 70.

2017 Code Language:

406.3(F) Receptacle with USB Charger. A 125-volt 15- or 20-ampere receptacle that additionally provides Class 2 power shall be listed and constructed such that the Class 2 circuitry is integral with the receptacle.

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406.3(F) Receptacle with USB Charger.

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

Which of the following is true for receptacles with USB chargers?

A: They shall be listed and constructed such that the Class 2 circuitry is integral with the receptacle.
B: They shall be constructed such that the Class 2 circuitry is external to the receptacle.
C: They must be marked with the word “controlled”.
D: They are NOT permitted to supply Class 2 power.
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