B-Line Eaton series Type 1 junction boxes, 6" height, 4" length, 6" width, 1, Hinged cover, HC enclosure, Surface mounted, Small single door, 3 top-b

No. The 664 HC is a NEMA Type 1 enclosure, which is for indoor use only and provides protection against incidental contact and falling dirt. It offers no rated protection against rain, hose-directed water, dust or oil, so keep it out of wet locations, exterior walls and washdown areas. For those openings you need a Type 3R, 4 or 4X enclosure instead.

The 664 HC measures 6 inches high, 6 inches wide and 4 inches deep. It is a surface mount box with thru holes in the back, so it bolts to the face of a wall, strut or panel rather than being recessed. If you need it inside a cavity you will have to confirm the 4 inch depth clears your studs and finish, but the mounting pattern is designed for surface work.

Knockouts are already provided: 3 on top, 3 on the bottom and 3 on the sides. That lets you run conduit straight through the box or branch off to the side without pulling out a punch on site. The back is drilled with thru holes for mounting, not for conduit.

It is built to UL 50, the standard covering enclosures for electrical equipment, and it carries a NEMA Type 1 rating. That is the pairing most indoor commercial and institutional specs call out for a general purpose pull or junction box. Country of origin is the US.

Hinged, and the cover is also removable. It has a recessed pull ring and a friction dimple to hold it shut, so an electrician or maintenance tech can open it one-handed for inspection and pull the door off entirely when wiring the box out on the bench or on the wall.

Carbon steel at 16 gauge, painted ANSI 61 grey, and the box weighs 3.2 lb. At that weight one person can hold it up and set the mounting fasteners through the back thru holes without a second set of hands.

The manufacturer part number is 664 HC, from the Eaton B-Line HC enclosure line. The digits describe the box: 6 inch height, 6 inch width, 4 inch depth, with HC denoting the hinged cover. Specify 664 HC when matching an existing run of these boxes in a building.

Go hinged where the box gets opened repeatedly, such as control splices, sensor wiring or a point a maintenance crew troubleshoots. The 664 HC door swings on a hinge with a recessed pull ring and a friction dimple, so nothing has to be unscrewed and there are no loose cover screws to lose in a ceiling. A screw cover box makes more sense for a buried splice you will never revisit, or where you want a cover that cannot be flipped open casually.

The 664 HC is painted ANSI 61 grey, the standard grey used across most industrial and commercial electrical enclosures, so it will read as a match next to typical panels, disconnects and control boxes in the same room. The paint is over 16 gauge carbon steel.