John Dirks Jr Posted July 31, 2007 Report Share Posted July 31, 2007 Is it ok for a main panel to be mounted with its back side flush up to a combustible surface such as OSB? Where can I find all the skinny on proper mounting of a main panel? Do the same rules apply to subs? Link to comment Share on other sites More sharing options...
Jim Katen Posted July 31, 2007 Report Share Posted July 31, 2007 Originally posted by AHI Is it ok for a main panel to be mounted with its back side flush up to a combustible surface such as OSB? Where can I find all the skinny on proper mounting of a main panel? Do the same rules apply to subs? As far as I can tell, there's no rule against placing a panel enclosure up against a combustible surface such as OSB. Though you'd have a hard time doing it since most panel enclosures have small mounting dimples on the back that create a 1/4" air space between the metal box and the surface behind the metal box. The purpose of these dimples, I believe, is to make it easier to comply with 312.2(A). This section says that in damp or wet locations surface-type enclosures should be installed with 1/4" of air space between the back of the enclosure and the mounting surface. Whether the enclosure contains a service panel or a sub panel makes no difference. If you want all the skinny on mounting these things, read the manufacturers instructions and Article 312. - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
Bain Posted July 31, 2007 Report Share Posted July 31, 2007 I don't understand. Why would anyone mount an electrical panel? A farm animal, perhaps, but an electrical panel? Link to comment Share on other sites More sharing options...
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