B-Line Eaton series Type 1 junction boxes, 24" height, 12" length, 18" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, N

No. The 241812 SC NK carries a NEMA Type 1 rating, which is indoor, dry-location use only. It gives protection against incidental contact with the enclosed equipment and falling dirt, nothing more. For outdoor, rain, hose-down, or dust-laden areas you need a Type 3R, 4, 4X, or 12 enclosure instead. Putting a Type 1 carbon steel box in a wet location will rust it out and fail inspection.

24 inches high, 18 inches wide, and 12 inches deep. That 12 inch depth is what makes it usable as a pull box for larger conductors, and the 24 x 18 face gives room to lay out terminal blocks or a small panel. It weighs 33.9 lb empty, so plan a two-man lift or a helper when hanging it.

No knockouts. The NK in the model designation means no knockout, so the box ships blank and you punch or drill your own openings exactly where the conduit runs land. That is the point of ordering it this way: you are not fighting factory holes that sit in the wrong place, and every unused opening you would otherwise have to plug simply is not there. Bring a knockout punch set for the trade sizes you need.

Surface mount, using thru holes in the back of the box. You fasten directly through the enclosure into the wall or strut with your own hardware sized for the substrate. Because the fasteners pass through the back panel, this is not a flush or recessed box, and it is not intended to sit inside a wall cavity. At 33.9 lb empty before conductors, anchor into studs, masonry, or a strut rack rather than drywall alone.

It is a screw cover, not a hinged door. The cover lifts fully away once the plated screws are out, which gives you unobstructed access to the whole 24 x 18 opening for pulling and terminating, but it also means the cover has to be handled and set aside each time. Keyhole slots on the cover let you back the screws out part way and lift the cover off without removing them completely, which saves losing hardware on a ladder. If you need frequent access with one hand, a hinged-door enclosure suits that better than a screw cover.

16 gauge carbon steel, painted ANSI 61 gray. Sixteen gauge is the usual body thickness for a box this size and it stays rigid when you are pulling heavy feeders through it or hanging terminal strips off the back panel area. The ANSI 61 gray finish matches standard switchgear and panelboard color, so it blends into an existing electrical room lineup. Keep it in dry indoor spaces given the Type 1 rating.

The manufacturer part number is 241812 SC NK from Eaton's B-Line series. The number reads straight off the dimensions: 24 height, 18 width, 12 depth, SC for screw cover, NK for no knockout. If you need the same footprint with factory knockouts or a hinged cover, that is a different suffix in the same family, so match the SC NK exactly when you are restocking a standardized enclosure across a facility.

Yes, and the 12 inch depth is why. A box that deep gives you real bending room for large conductors entering and leaving at angles, which is what pull box sizing in the field usually comes down to. With no factory knockouts you set the conduit entries to suit the pull geometry rather than working around fixed holes. Confirm your own pull box sizing calculation for the largest raceway involved before you commit to the 24 x 18 face.