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550.13(B) Receptacle Outlets. (Mobile Homes, Manufactured Homes, and Mobile Home Parks)

Revision

Change Summary

  • GFCI protection for mobile homes was revised to reflect GFCI coverage for all sinks, dishwashers, and other locations similarly found at 210.8(A).
NEC® Text

550.13 Receptacle Outlets.
(B) Ground-Fault Circuit Interrupters (GFCI).
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed outdoors, in compartments accessible from outside the unit, or in bathrooms, including receptacles in luminaires, in the locations specified in 550.13(B)(1) through (5) shall have GFCI protection for personnel. GFCI protection shall be provided for receptacle outlets serving countertops in kitchens and receptacle outlets located within 1.8 m (6 ft) of a wet bar sink. The exceptions in 210.8(A) shall be permitted.
(1) Outdoors, including in compartments accessible from outside the unit
(2) Bathrooms, including receptacles in luminaires
(3) Kitchens, where receptacles are installed to serve countertop surfaces
(4) Sinks, where receptacles are installed within 1.8 m (6 ft) of the outer edge of the a wet bar sink
(5) Dishwashers
Feeders supplying branch circuits shall be permitted to be protected by a ground-fault circuit-interrupter in lieu of the provision for such interrupters specified herein.

Informational Note: For information on protection of dishwashers, see 422.5.

Note to Reader: The GFCI requirements for dwelling unit dishwashers remained at 210.8(D) and not at 422.5 as indicated in the added informational note above.

Copyright© 2016 National Fire Protection Association
(See NEC for complete text)

Expert Analysis

Unfortunately, the GFCI requirements for mobile and manufactured homes have not always kept pace with the same GFCI requirements for conventional dwelling units. With that in mind, revisions and updates were made to 550.13(B) for the 2017 NEC related to GFCI requirements for mobile and manufactured homes.

Along with the previous GFCI requirements, GFCI requirements for all sinks (not just wet bar sinks), dishwashers and other locations similarly found at 210.8(A) were incorporated into 550.13(B). Clarification was added to the GFCI provisions for outdoor receptacle outlets to include all outdoor receptacle outlets including (but not limited to) outdoor receptacle outlets located in compartments accessible from outside the unit.

The option of delivering the required GFCI protection through a feeder that supplied the branch circuits associated with the receptacle outlets requiring GFCI protection was eliminated with the revisions of 550.13(B) for the 2017 NEC. No explanation was given for this feeder option being deleted.

The GFCI requirements for mobile and manufactured homes at 550.13(B) were reformatted into a list format for usability. These revisions and formatting will add enforceability and clarity while bringing needed consistency between mobile and manufactured homes and conventional dwelling units concerning GFCI requirements.

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