B-Line Eaton series Type 3/3R junction boxes, 18" height, 6" length, 18" width, 3 and 12, Screw cover, WPSC enclosure, Surface mounted, Medium single

Yes. The 18186 WPSC is a Type 3/3R enclosure with an oil-resistant gasket and gasketed cover screws, so it is built for outdoor rain and weather exposure. It is UL 50 listed. Carbon steel construction with a painted ANSI 61 grey finish, mounted to the wall through external feet so the enclosure body stays sealed.

18 inches high by 18 inches wide with a 6 inch depth, which is where the 18186 designation comes from. That 6 inch depth is the number to check first: wireway bends, breakers or terminal blocks deeper than about 6 inches will not fit behind the cover. Shipping weight is 19.2 lb.

No. WPSC screw cover enclosures ship with blank walls so you drill and punch conduit entries where your run lands. Wall thickness is 16 gauge carbon steel, which a standard hole punch handles fine. Any hole you make on the top or a side needs a rated watertight hub or fitting to keep the Type 3R weather rating intact.

Screw cover, flanged type. The full 18 x 18 inch cover comes off with gasketed screws rather than swinging on hinges, so you need clear space in front of the box to lift the cover away. For an enclosure opened routinely for adjustment or inspection, a hinged-door style is the easier choice; a screw cover suits pull boxes, splice points and terminations you rarely revisit.

Through external mounting feet welded to the back, for surface mounting. Because the feet sit outside the box, your fasteners never break the enclosure wall and the gasket seal is unaffected. The feet also hold the enclosure off the mounting surface slightly, which helps on damp exterior walls. This is not a flush or recessed box.

It is described as NEMA 3 and 12, so beyond outdoor rain and windblown dust it also covers indoor dust, dirt and dripping non-corrosive liquids, which is why the gasket is oil-resistant. It is not a 4X stainless enclosure, so for corrosive or chemical wash environments specify a stainless or non-metallic type instead of painted carbon steel.

It arrives painted in ANSI 61 grey, the standard gear grey used on most industrial control and distribution equipment, so it matches existing panels on the wall without repainting. The painted steel takes field touch-up and adhesive labels fine.