The C3R644HCR is a Type 3R painted galvanized steel junction box from the C3R HCR SM Series, measuring 6 in x 4 in x 4 in (152 mm x 102 mm x 102 mm). Designed for use as a wiring/junction box, it provides protection against rain, sleet, snow and dripping water, suiting electricians and installers who need a small hinged outdoor box for splices and terminations.

It is formed and spot welded from 16 gauge galvanized steel with a drip-shield top and seam-free sides, front and back. The door rides on a galvanized steel hinge with a stainless steel pin and closes with a zinc-plated draw pull catch that has provisions for padlocking, so the cover opens without removing screws. Enclosure and cover are finished in ANSI 61 gray powder coating, and oil resistant gaskets are permanently secured.

At 6 x 4 x 4 in it is the smallest size in the C3R HCR SM ordering table, sized for compact splices and a few terminals. The drawing shows a door opening 2.83 in wide, a 4.31 x 5.69 in door, an overall height of 7.88 in with the mounting feet and an overall depth of 4.60 in. Easily removed knockouts on the bottom (0.88, 1.13 and 1.38 in diameters on the drawing) simplify conduit entry, and panel studs accept optional inner panel N1JP64 (4.25 x 2.25 in).

The C3R644HCR carries UL-50 Type 3R (UL File E65324) and CSA Type 3R (CSA LL21312) listings, complies with NEMA Type 3R and IEC 60529 IP24, and is REACH and RoHS compliant. Shipping weight is 3 lbs (1.36 kg); it is packaged in a box.