B-Line Eaton series Type 3/3R junction boxes, 12" height, 8" length, 12" width, 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Small single do

Yes. The 12128 RTHC NK is a NEMA 3R rated enclosure, which covers outdoor use against falling rain, sleet and snow. It backs that up with a formed top hinge closure and a rain hood over the door so water sheds off the seam rather than running into it. It is not a washdown or hosedown box, so if you are dealing with directed water spray you want a Type 4 instead.

It measures 12 inches high, 12 inches wide and 8 inches deep. The 8 inch depth is the number that usually decides the job, since it sets how much room you have behind the door for terminal blocks, breakers or wire bending space. Shipping weight is 11.6 lb.

No. The NK in 12128 RTHC NK means no knockouts, so the box ships blank and you punch your own conduit entries where the run actually lands. That is the right choice for a 3R outdoor box, since every unused knockout is a leak path. Plan on a step bit or a knockout punch plus the appropriate rain tight hub or fitting for each entry.

It is a surface mount enclosure with embossed thru holes in the back for the fasteners. Embossed holes stand the mounting points proud of the back wall, so the box sits slightly off the surface and water can drain behind it rather than pooling. You supply the anchors or screws to suit the substrate. At 11.6 lb empty, two or four anchors sized to the wall material will carry it.

Yes. The 12128 RTHC NK has a padlock provision on the hinged door, so you can put a standard shackle padlock on it to keep the enclosure secured in an unsecured outdoor or tenant accessible location. The padlock is not included.

The body is 16 gauge carbon steel with a painted finish in ANSI 61 grey, the standard light grey used across most industrial control and utility gear. Carbon steel means it depends on that paint for corrosion protection, so if you are near salt air or in a chemical environment, look at a stainless or non metallic 3R box instead.

Both, in effect. The door is a small single door on a formed top hinge, so it swings open for routine access without you juggling a loose cover on a ladder, and the cover is removable when you need the opening completely clear to pull wire or set a sub panel inside.

Order it as Eaton B-Line 12128 RTHC NK. The digits read as the box dimensions, 12 high by 12 wide by 8 deep, RTHC is the rain tight hinged cover style and NK flags no knockouts. UPC is 782051073089.

Country of origin is the US, which matters if you are procuring under domestic sourcing requirements on a government, institutional or federally funded job.