B-Line Eaton series Type 1 junction boxes, 6" height, 6" length, 6" width, 1, Hinged cover, HC NK enclosure, Surface mounted, Small single door, No k

No. The 666 HC NK carries a NEMA Type 1 rating, which is indoor, general purpose only. It gives protection against incidental contact with the enclosed equipment and falling dirt, with no protection against rain, hose-down, dust, oil or corrosive conditions. For outdoor walls, loading docks or wet process areas, step up to a NEMA 3R or NEMA 4 enclosure instead.

No knockouts. The HC NK box ships blank, so you drill or punch your own conduit openings exactly where the run lands. That is the point of ordering the NK version: on a retrofit or a field-routed conduit run you are not stuck with factory hole locations you have to plug. Plan on a step bit or a knockout punch and the right connectors for your conduit type.

Both, in effect. The cover is hinged so it swings open and stays with the box during service work, and it is also removable if you need it fully out of the way while pulling wire or drilling the enclosure. A recessed pull ring and friction dimple let you open and hold it without a screwdriver, which matters when the box is above head height or you are working one handed.

It is a 6 x 6 x 6 inch cube: 6 inch height, 6 inch width and 6 inch length/depth. That 6 inch depth gives room behind the cover for splices, small terminal blocks or a compact relay, but it is a pull and splice box rather than a panel enclosure. Shipping weight is 4.1 lb.

Surface mount through holes in the back of the box. Fasteners are not part of the enclosure, so pick anchors to suit the substrate: toggles or self drilling anchors in drywall, sleeve anchors in block or concrete, screws into studs or Unistrut. At 4.1 lb empty it is light, but hang it off solid backing if conduit is landing on it.

It is built to UL 50, the standard covering enclosures for electrical equipment, and it is rated NEMA Type 1 for indoor general purpose use. Country of origin is the US. For an inspector that combination covers the enclosure itself; the wiring method and fill you put in it are still on you.

Go hinged when the box will be opened more than once. On a screw cover box every service call means backing out and keeping track of cover screws, usually on a ladder. The 666 HC NK swings open on its hinge, is held by a friction dimple, and the cover still lifts off when you want it gone. Screw cover boxes make more sense where the box is buried in a ceiling and never touched again, or where you want the cover harder to open casually.

Order Eaton B-Line part number 666 HC NK. The number reads directly off the specs: 6 x 6 x 6 inches, HC for hinged cover, NK for no knockouts. If you want the same box with factory conduit knockouts, that is a different suffix, so be sure NK is what you actually want before you order.

16 gauge carbon steel with a painted finish in ANSI 61 grey, the standard grey you see on most industrial control gear, so it blends with panels and gutter already on the wall. Steel construction suits mechanical rooms, shops and back of house runs; in a corrosive or wet environment you want stainless or non metallic instead.