B-Line Eaton series Type 1 junction boxes, 16" height, 8" length, 12" width, 1, Screw cover, SC enclosure, Surface mounted, Small single door, 7 side

No. The 16128 SC carries a NEMA 1 rating, which is indoor use only, for protection against incidental contact and falling dirt. It gives no protection against water, dust, oil or corrosive conditions, so a wet location, exterior wall, or washdown area needs a NEMA 3R, 4 or 4X enclosure instead. For dry indoor pull and splice work in mechanical rooms, electrical closets and above ceilings, it is the right class of box.

It measures 16 inches high, 12 inches wide and 8 inches deep. The 8 inch depth is what matters most on a pull box job, since it gives room for conductor bending space and for devices or terminal blocks mounted inside. Body and cover are 16 gauge carbon steel, and the assembled box weighs 13.8 lb.

Knockouts are already provided: 7 on each side, 5 on the top and 5 on the bottom. There are also thru holes for mounting. If your conduit runs don't line up with the factory knockouts, you'd be punching the 16 gauge steel yourself, so lay the box out against your raceway before you set it.

It is a surface mount box with thru holes in the back for fasteners straight into the wall or a strut run. The cover uses keyhole slots and plated screws, so you can back the screws out part way, hang the cover on the slots, and tighten it, which means a one-man cover replacement without juggling loose hardware. Mounting fasteners and anchors are not part of the box and are chosen to suit your substrate.

A screw cover box like the 16128 SC is meant for splices and pull points you open rarely, since the whole cover comes off with screws. If you're going to be inside it regularly, for terminations you check or devices you service, a hinged door enclosure is the easier choice because the cover stays captive. For a wall-mounted junction or pull box that gets closed up and left alone, the screw cover is simpler and there's no door swing clearance to plan for.

It is built to UL 50, the standard for electrical enclosures, which is what most inspectors and spec writers look for on an indoor junction box. The finish is painted ANSI 61 grey, the standard gear grey, so it matches panelboards, wireways and other B-Line enclosures already on the wall.

The 16 gauge carbon steel body handles the knocks of a garage or plant environment, but the rating is the limiting factor, not the steel. With a NEMA 1 rating and a painted finish, it belongs in dry indoor space. A garage exposed to driven rain, salt or condensation will rust a painted carbon steel NEMA 1 box, so spec a NEMA 3R box for damp or exterior locations and a stainless NEMA 4X where there's corrosion.