B-Line Eaton series Type 1 junction boxes, 6" height, 4" length, 4" width, 1, Screw cover, SC NK enclosure, Surface mounted, Small single door, No kn

No. The 644 SC NK is a NEMA Type 1 enclosure, which is for indoor use only, protecting against incidental contact with the enclosed equipment and falling dirt. It offers no rating against rain, hose-down, dust, or corrosive environments. For a wet or outdoor location you need a Type 3R or Type 4 enclosure instead.

The 644 SC NK is the no-knockout version, so the box arrives blank. You punch or drill your own openings wherever the conduit runs suit the job. The body is 16 gauge carbon steel, so a standard knockout punch handles it cleanly. If you want factory openings, order the knockout version of the same box rather than this NK one.

It is a surface mount box with thru holes in the back for fasteners, so you screw or bolt it directly to the wall, stud, or strut. Anchors and screws are not part of the box, so pick fasteners to suit the substrate. The cover also has keyhole slots, which lets you hang the cover off partly driven screws while you line it up.

It is built to UL 50, the standard covering enclosures for electrical equipment, and it carries a NEMA Type 1 rating for indoor use. That is the combination inspectors look for on an indoor surface mounted pull or junction box in commercial work. It is also made in the US, which matters on jobs with domestic sourcing requirements.

The 644 SC NK uses a screw-on cover with plated screws, which is the right choice for a splice or pull point you rarely open: fewer parts, nothing to sag, and the cover comes fully off for wiring. A hinged door box is better where you need routine access to controls or terminals and do not want to handle loose screws and a cover while standing on a ladder.

The 644 SC NK weighs 2.4 pounds empty in 16 gauge carbon steel, light enough for toggle or self drilling drywall anchors through its thru holes as long as conduit is supported separately. Where conduit lands on the box, anchor into a stud or strut instead so the raceway weight is not carried by the wallboard.

It ships painted in ANSI 61 grey, the standard light grey used across most industrial control enclosures and panels, so it blends with existing gear in a plant or mechanical room. If you need it to match a finished wall, it takes paint fine over the factory coating.