B-Line Eaton series Type 3/3R junction boxes, 36" height, 12" length, 30" width, 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Medium single

Yes. The 363012 RTHC NK carries a NEMA 3R rating, so it is built for outdoor use against falling rain, sleet and external ice formation. It also has a rain hood over the door and is UL 50 certified. NEMA 3R does not cover windblown dust, hosedown or washdown, so for those conditions you want a Type 4 or 4X enclosure instead.

36 inches high, 30 inches wide and 12 inches deep, which is where the 363012 designation comes from. It is a medium single door style, so plan wall space for the door to swing clear of the full 30 inch width.

No. The NK in 363012 RTHC NK means no knockouts, so the box ships blank and you drill and punch your own conduit entries wherever the run lands. The body is 12 gauge carbon steel, so use a knockout punch rather than a hole saw. If you want factory knockouts, you need a different configuration of the RTHC enclosure.

Surface mount, using embossed thru holes in the back of the box. Empty weight is 111.4 lb, so it is a two-person lift and the backing needs to be real structure, unistrut, a mounting panel channel, or blocking behind the wall finish. Anchor into studs or masonry, not drywall alone, and remember the weight climbs once the gear is inside.

Yes, it has a padlock provision on the door, which is what most facilities and utilities require on exterior gear. The cover is hinged on a formed top hinge and is removable, so you can lift the door off entirely while pulling wire and rehang it before you lock up.

No. This one is a painted carbon steel Type 3R box, rated for falling rain and ice, not for hosedown, chemical exposure or coastal salt air. For washdown go to a Type 4 gasketed enclosure, and for corrosive or marine environments go to a Type 4X in stainless or non-metallic. Where it does earn its keep is outdoor and unheated interior work: pump stations, rooftop equipment, yard lighting, exterior pull and terminal boxes.

Painted ANSI 61 grey, which is the standard light grey used across most industrial control and distribution equipment, so it lines up with typical panelboards and control cabinets already on a site. It is a painted carbon steel box, so touch up any field-drilled holes or scratches to keep corrosion out of the cut edges.

Order it as B-Line (Eaton) 363012 RTHC NK. Country of origin is the US. The number breaks down as 36 high, 30 wide, 12 deep, RTHC for the rain-hood hinged cover enclosure, NK for no knockouts.