B-Line Eaton series Type 1 junction boxes, 12" height, 10" length, 12" width, 1, Screw cover, SC NK enclosure, Surface mounted, Small single door, No

No. It's a NEMA Type 1 enclosure, which is indoor-only protection against incidental contact and falling dirt. Rain, hose-down, dust-tight or corrosive locations need a Type 3R, 4 or 4X box instead. Keep this one in dry interior spaces like electrical rooms, corridors and mechanical closets.

12 inches high, 12 inches wide, and 10 inches deep. The 10 inch depth is generous for a box this size, so there is room for splices, terminal blocks or a small DIN rail behind the cover. Model designation 121210 reads out as those three dimensions.

No knockouts. The 121210 SC NK ships blank, so the installer punches or drills every conduit entry to suit the run. That's the point of an NK box: you place the hubs where the raceway actually lands instead of working around factory holes. Plan on a knockout punch set for the 16 gauge carbon steel wall.

It carries UL 50, the standard for enclosures for electrical equipment. Paired with the NEMA Type 1 rating, that is what most indoor commercial specs call out for a general purpose pull or junction box. Made in the US.

It's a screw cover, held by plated screws, and the cover has keyhole slots. The keyholes matter on the job: back the screws out part way and the cover lifts off without fully removing and losing hardware, which is the difference between a one-man and a two-man lid change on a 12 x 12 box overhead.

Surface mount, using thru holes in the back of the enclosure. There are no external mounting feet, so the fasteners pass through the box interior into the wall or strut. At 13.2 lb empty, anchor into studs, masonry or Unistrut rather than drywall alone.

A screw cover suits a box you open rarely, pull boxes, splice points, junctions behind equipment, and it gives a flatter, more tamper-resistant profile. If the box houses controls, terminals or anything checked on a maintenance route, a hinged or latched enclosure is the better call, because taking plated screws in and out repeatedly gets old fast. The 121210 SC NK is the screw cover, no knockout version.

Yes. The walls are 16 gauge carbon steel, which takes a standard knockout punch or hole saw for trade size conduit entries. Since it ships with no knockouts, that is the expected install method. Touch up bare steel at the cut edges to protect the painted finish.

Painted carbon steel in ANSI 61 grey, which is the standard grey used across most industrial control and distribution enclosures. If the rest of the equipment in the room is ANSI 61, this drops in without looking like an odd patch.