B-Line Eaton series Type 1 junction boxes, 30" height, 4" length, 30" width, 1, Screw cover, SCGV NK enclosure, Surface mounted, Medium single door,

No. The 30304 SCGV 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 has no rating against rain, hose-down, washdown, or dust ingress, so keep it out of exterior walls, mechanical rooms with washdown, and damp locations. For those you need an enclosure rated Type 3R, 4, or 12.

It measures 30 inches high by 30 inches wide with a 4 inch depth, so it is a large, shallow pull box. The 4 inch depth is the number to watch: check your conductor bending space and any devices or terminal blocks you plan to mount inside before committing, because depth is the dimension that usually runs out first on a shallow box this wide.

No knockouts. The NK in the model designation means the box ships blank, so every conduit entry gets punched in the field where you want it. That is the point of the NK version, it lets you place entries to suit the raceway run instead of working around factory knockouts, but budget time for a knockout punch set on install.

Surface mounting, using thru holes in the back of the box rather than external mounting feet or flanges. That means your fasteners land inside the enclosure and the box sits flat against the wall or strut. At 60.3 lb before any conductors, anchor into structure or a strut rack, not drywall alone.

The 30304 SCGV NK is built to UL 50, the standard for enclosures for electrical equipment. Paired with the Type 1 rating and 12 gauge galvanized construction, it covers the usual indoor pull box and gutter spec language on commercial and institutional work. It is also US made if your project carries a domestic sourcing requirement.

The cover is a screw-on type, not hinged, secured with plated screws. B-Line puts keyhole slots on the cover so one electrician can back the screws out part way and lift the cover off the slots rather than juggling a loose 30 by 30 panel and all its fasteners at once. Still, the complete box weighs 60.3 lb, so plan the lift accordingly.

Body is 12 gauge galvanized steel, which is heavy wall for a pull box this size and holds its shape when you are pulling large feeders through it. The finish is unfinished galvanized, gray in appearance, so there is no factory paint. If your spec calls for a painted enclosure to match a finished space, this one will need field prep and coating, or you order a painted enclosure instead.