B-Line Eaton series Type 1 junction boxes, 16" height, 6" length, 16" width, 1, Hinged cover, HC enclosure, Surface mounted, Small single door, 7 top

No. The 16166 HC carries a NEMA Type 1 rating, which is indoor use only, for protection against incidental contact with the enclosed equipment and falling dirt. It offers no protection against rain, hose-down, dust ingress or corrosive liquids. For an exterior wall, a loading dock, a kitchen or a car wash, you need a Type 3R, 4 or 4X enclosure instead. Indoors, in an electrical room, mechanical room or back-of-house corridor, Type 1 is the normal choice.

It is a 16 inch by 16 inch box with a 6 inch depth, so you need a clear 16 by 16 footprint on the wall and 6 inches of projection off the finished surface. The 6 inch depth is what determines whether your conductors, splices and any DIN rail or terminal blocks will sit inside the cover swing. Shipping weight is 15.4 lb, light enough for one person to hold while a second fastener goes in.

Knockouts are provided on all four planes: 7 on the top, 7 on the bottom and 7 on the sides. That is enough for a box used as a wireway pull point with conduit entering and leaving in several directions. If your conduit run lands somewhere the knockouts do not, the carbon steel body can be drilled or punched, but for most straight-through or branch pulls you will find a knockout where you need it.

It is a surface mount enclosure with thru holes in the back pan, so it bolts flat to a wall, a strut rack or a plywood backboard. The thru holes mean fasteners pass through the box, so pick anchors or bolts suited to your substrate (toggles or sleeve anchors in masonry, lags into blocking). The box does not ship with those anchors; they are selected for the wall you are fastening to.

Both, which is the point of the HC design. The cover is hinged so it swings open for troubleshooting without you juggling it on a ladder, and it is also removable when you want full access to the back pan for drilling or pulling wire. It has a recessed pull ring and a friction dimple, so it stays shut without a separate latch and sits flush enough not to snag in a corridor.

It is built to UL 50, the standard covering enclosures for electrical equipment, and country of origin is the United States. For a spec that calls out UL 50 enclosures or has domestic-origin language on a public job, those two facts are what the submittal reviewer is looking for.

The catalogue number is 16166 HC. The digits read as the box size, 16 inch high by 16 inch wide by 6 inch deep, and HC designates the hinged cover version. Ordering the same size without the HC suffix gets you a screw-cover box instead, which is fine for a buried-in-the-ceiling pull point but not for a box you expect to open regularly.

The body is 16 gauge carbon steel with a painted finish in ANSI 61 grey, which is the standard grey used across most commercial switchgear, panels and enclosures. If you are standardizing an electrical room or adding boxes to an existing wall of B-Line or Eaton equipment, the colour will read as a match rather than a patch.

It is sold as a Type 1 junction box, so its primary job is housing splices, taps and pull points on a conduit run. There is no back panel called out as part of it, so if you intend to mount terminal blocks, relays or a small controller you will need to add a panel or fabricate mounting to the thru-hole back pan. The 6 inch depth gives you room to work either way.