B-Line Eaton series Type 3/3R junction boxes, 24" height, 12" length, 24" width, 3R, Screw cover, RTSC enclosure, Surface mounted, Medium single door

Yes, within the limits of NEMA 3R. The 242412 RTSC is a Type 3R enclosure with a rain hood over the cover, so it handles rain, sleet and falling water on an exterior wall. It is not a washdown or hosedown box, and 3R is not rated for dust-tight or oil-tight service. If the location sees pressure washing or heavy windblown dust, step up to a 4 or 12 rated enclosure instead.

There are 9 knockouts in the bottom of the box, so bottom conduit entry is already provided. Top, side and back surfaces are unpunched, which is what you want on a 3R box since a top penetration compromises the rain rating. Anything you add yourself should stay out of the top and be closed up with a rated fitting.

It is a surface mount enclosure with embossed thru holes in the back pan, so you bolt or lag it straight to the wall or to Unistrut. The embossed holes keep the fastener heads off the mounting surface and preserve the enclosure seal. Anchors and fasteners are sized to your substrate and are supplied separately.

It carries UL 50, the enclosure standard for electrical equipment, which is what an inspector looks for on a junction or pull box. It is also made in the US, which matters if your project carries domestic sourcing requirements.

It measures 24 inches high, 24 inches wide and 12 inches deep, which is the working room you get for gutter taps, splices or a terminal strip. Dry weight is 53.7 lb, so plan on two people or a lift for a surface mount at height.

Screw cover. The flanged cover lifts off entirely once you back out the plated screws, which is fine for a junction or pull box you open occasionally. For a panel you access daily, a hinged door enclosure is the better choice, since a loose 24 x 24 cover is awkward to handle on a ladder.

The body is 14 gauge carbon steel, painted in ANSI 61 grey. That is standard industrial gauge and finish, and it matches most switchgear and control panels already on site, so a replacement box won't look out of place. Since it is painted steel rather than stainless, touch up any drilling or cutting you do to keep corrosion out of the bare metal.

Order Eaton B-Line 242412 RTSC. The digits are the size in order, 24 inch height, 24 inch width, 12 inch depth, and RTSC is the rain-tight screw cover series designation. If you need a different size in the same family, the number changes with the dimensions while the RTSC suffix stays.