20a 240vac "weather resistant" outlet

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RogerDaisley

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Pullman, WA
I am installing a 20a/240vac outlet on the exterior of a barn. The outlet is installed in a standard UL approved covered box. (clear plastic swing-up cover.) I failed an inspection because the inspector stated the 20a/240vac outlet must be stamped "weather resistant" ... and this one was not.

I went to my electrical supply store and they said they didn't know of any. They called Leviton and they sent a $20 "Corrosion Resistant" outlet, which again, the inspector rejected. We are now at an impasse: The electrical supply store cannot supply what the Inspector wants.

Any suggestions?
 
Could you change to twist locks?


406.9 Receptacles in Damp or Wet Locations.

(A) Damp Locations. A receptacle installed outdoors in a
location protected from the weather or in other damp locations
shall have an enclosure for the receptacle that is
weatherproof when the receptacle is covered (attachment
plug cap not inserted and receptacle covers closed).
An installation suitable for wet locations shall also be
considered suitable for damp locations.
A receptacle shall be considered to be in a location
protected from the weather where located under roofed
open porches, canopies, marquees, and the like, and will
not be subjected to a beating rain or water runoff. All 15-
and 20-ampere, 125- and 250-volt nonlocking receptacles
shall be a listed weather-resistant type.



(B) Wet Locations.
(1) 15- and 20-Ampere Receptacles in a Wet Location.
15- and 20-ampere, 125- and 250-volt receptacles installed in
a wet location shall have an enclosure that is weatherproof
whether or not the attachment plug cap is inserted. For other
than one- or two-family dwellings, an outlet box hood installed
for this purpose shall be listed, and where installed on
an enclosure supported from grade as described in 314.23(B)
or as described in 314.23(F) shall be identified as ?extra-duty.?
All 15- and 20-ampere, 125- and 250-volt nonlocking-type
receptacles shall be listed weather-resistant type.
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I would install a single 30 amp receptacle and let them by a 20 amp adapter. As Bob stated the code requires the WR rating.
 
If you need a 14-20R WR receptacle and nobody makes one, there is another option:

90.4 said:
This Code may require new products, constructions, or materials that may not yet be available at the time the Code is adopted. In such event, the authority having jurisdiction may permit the use of the products, constructions, or materials that comply with the most recent previous edition of this Code adopted by the jurisdiction.
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