B-Line Eaton series Type 3/3R junction boxes, 18" height, 8" length, 18" width, 3R, Screw cover, RTSCGV NK enclosure, Surface mounted, Medium single

Yes, within the limits of a NEMA 3R rating. The Eaton B-Line 18188 RTSCGV NK enclosure is rated Type 3R, which covers outdoor use against falling rain, sleet and snow, and it includes a rainhood over the cover seam. It is not a washdown or hosedown enclosure, so keep it off surfaces that get pressure washed and mount it upright so the rainhood sheds water as intended.

It measures 18 inches height, 18 inches width and 8 inches length/depth, so you need a wall footprint of about 18 by 18 inches plus clearance, with 8 inches of projection off the wall. Check that 8 inch depth against your largest conductor bend radius and any gutter taps before you commit.

No. The 18188 RTSCGV NK is the NK (no knockout) version, so all conduit entries have to be field punched. That is the usual choice when you want to control hole placement and keep the 3R integrity, but it means you need a hole punch set sized for your conduit on site. If you want factory knockouts, order the knockout version of the same screw cover box instead.

It is a surface mount enclosure with embossed thru holes formed in the back for fastening, so you are not drilling the back panel yourself and the embossing keeps the fastener heads off the mounting surface. Anchors or bolts suited to your wall are not part of the box, and at 20.5 pounds empty you want fasteners rated well past that once the box is full of conductors.

Screw cover, secured with plated screws. That means full cover removal for every access, which is fine for a pull or splice box that gets opened rarely, but if your technicians open the box routinely for metering or troubleshooting, a hinged cover enclosure is the easier choice. The single door style covers the full 18 by 18 inch face.

The body is 16 gauge galvanized steel, supplied unfinished in a grey galvanized appearance. The zinc coating is the corrosion protection, so no paint is required for general outdoor use. In coastal or chemically aggressive locations, a stainless or non metallic 4X enclosure is the better call. If you do paint it for appearance, use a primer suited to galvanized surfaces.

It carries UL 50, the standard for enclosures for electrical equipment, and it is made in the US. That plus the Type 3R designation is normally what a submittal for an outdoor pull or junction box asks for. UL 50 covers the enclosure construction itself, not the equipment you install inside it.

Yes, that is the typical use. An 18 by 18 by 8 inch screw cover Type 3R box with no factory knockouts is commonly set as an outdoor pull box, splice box or gutter feeding a nearby panel, since you punch entries exactly where your raceways land. There is no back panel mounting hardware described for this box, so if you plan to mount components inside you will need to add a panel and standoffs.

Order it as Eaton B-Line 18188 RTSCGV NK. The number reads as the size and type: 18 high, 18 wide, 8 deep, RTSC screw cover rainhood type, GV galvanized, NK no knockouts. That single part number is the whole box, cover and screws included.