B-Line Eaton series Type 1 junction boxes, 18" height, 12" length, 18" width, 1, Screw cover, SC enclosure, Surface mounted, Medium single door, 9 si

No. The 181812 SC 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 gasket and the cover is held by plated screws, so it will not keep out rain, hose spray, or washdown. For wet or outdoor locations you need a Type 3R or Type 4 enclosure instead.

It is 18 inches high, 18 inches wide, and 12 inches deep. That 12 inch depth is generous for a pull box, so it gives room for gutter taps, terminal blocks, or looping large conductors without fighting the cover. The box weighs 25.3 lb empty, which matters when you are deciding on anchors for a block or drywall wall.

Knockouts are provided: 9 on the sides, 9 on the top, and 9 on the bottom. That is plenty for a multi-circuit pull or splice point without bringing a punch set to the job. If your conduit run does not line up with an existing knockout, the carbon steel body can still be drilled or punched in the field.

Surface mount, using thru holes in the back of the box. You anchor straight to the wall or to Unistrut, so no back panel bracket or flush-mount trim kit is involved. Hardware for anchoring is not part of the box, so pick fasteners for your wall type and rate them for the 25.3 lb empty weight plus whatever goes inside.

The cover is a screw cover with plated screws, and it has keyhole slots so you can back the screws out part way and lift the cover off without removing them entirely. Handy on an 18 x 18 cover when you are on a ladder alone. It is not a hinged door, so plan on a screwdriver every time you open it.

The body is 16 gauge carbon steel with a painted finish. That is standard commercial wall thickness for a box this size, stiff enough that the sides will not oil-can when you tighten conduit connectors, and it takes wall anchoring without deforming around the thru holes.

The 181812 SC is a screw cover junction box, not a control enclosure. It is sold as the box and cover with thru holes for surface mounting; a subpanel is a separate item. If you are mounting a relay, terminal strip, or DIN rail, order a back panel sized to an 18 x 18 box.

The manufacturer part number is 181812 SC from Eaton B-Line. The numbering follows height, width, depth in inches with SC for screw cover, so 181812 SC is the 18 high by 18 wide by 12 deep screw cover Type 1 box. It is made in the US.

It ships painted ANSI 61 grey, the standard grey used across most industrial control and distribution gear. If your panels and gutters are already ANSI 61, this will blend in on the wall rather than standing out.