B-Line Eaton series Type 1 junction boxes, 12" height, 12" length, 12" width, 1, Screw cover, SC NK enclosure, Surface mounted, Small single door, No

No. The 121212 SC NK carries a NEMA Type 1 rating, which is indoor use only, for protection against incidental contact with the enclosed equipment and falling dirt. It offers no protection against rain, hose-down, washdown, dust ingress or corrosive liquids. For an outdoor wall, a mechanical room with washdown, or anywhere moisture is present, you need a NEMA 3R, 4 or 4X enclosure instead.

No knockouts. The 121212 SC NK is a no-knockout box, so every conduit entry is field-drilled or punched where you need it. That is the right choice when your conduit layout doesn't match a standard knockout pattern, but it means you'll want a hole saw or knockout punch and the correct connectors on the truck before you start. If you'd rather have factory openings, order a knockout version instead.

The 121212 SC NK is built to UL 50, the standard covering enclosures for electrical equipment and their environmental construction requirements. Paired with the Type 1 rating, that's the paperwork an inspector or a spec-driven institutional job typically looks for on an indoor enclosure.

It's a 12 x 12 x 12 inch box: 12 inch height, 12 inch width and 12 inch length/depth. That cube shape gives you real wiring room for splices and pull space, and it's worth checking your wall depth clearance since the full 12 inches projects off the surface when it's surface mounted.

Surface mount, through thru holes in the back of the enclosure. There's no flush or recessed trim involved, so you fasten it directly to a wall, a strut rack or a backboard with your own anchors or machine screws sized to the substrate. Mounting hardware is not part of the box itself, so pick fasteners rated for the 14.7 lb empty weight plus whatever wiring and devices go inside.

It's a screw cover, not a hinged door. The cover lifts fully off once the plated screws are backed out, and it has keyhole slots so you can loosen the screws and slide the cover off rather than fully removing every fastener. Fine for a pull box or a splice point you open occasionally; if the box gets accessed daily, a hinged-door enclosure will serve you better.

Carbon steel at 16 gauge wall thickness, painted in ANSI 61 grey. Sixteen gauge is a standard commercial body thickness that holds its shape when you're pulling conductors through and supports mounted devices without oil-canning. The paint is a finish coat for indoor service, not a corrosion system, which matches its indoor NEMA 1 rating.

Order Eaton B-Line part number 121212 SC NK. The designation reads out as the dimensions (12 x 12 x 12), SC for screw cover and NK for no knockouts. It's manufactured in the US, which matters if you're on a job with domestic sourcing requirements.

14.7 lb empty. That's a one-hand carry up a ladder for most installers, but with 16 gauge carbon steel construction you'll still want two anchors minimum into solid backing rather than drywall alone, especially once conduit runs are landed on it.