The HJ14126LP is a 14 x 12 x 6 in (356 x 305 x 152 mm) Type 4 and Type 12 mild steel junction box from the HJ Series, fitted with a lift-off cover secured by clamps. Its larger footprint gives room for terminal strips and control components on an inner panel. It is designed for use as an instrument enclosure, an electric, hydraulic or pneumatic control housing, an electrical junction box or a terminal wiring enclosure, and provides a degree of protection from falling dirt, dust, oil and water.

The body is formed from 16 gauge or 14 gauge steel and the cover from 14 gauge steel. Seams are smooth and continuously welded, with no knockouts, cutouts or holes. The lift-off cover seals against a seamless poured-in-place gasket, is secured with stainless steel clamps and stainless steel screws, and is retained with a stainless steel chain when open, so it stays with the box during service. Cover and enclosure are phosphatized and finished in ANSI 61 gray recoatable powder coating.

Per the drawing, the cover measures 14.31 x 12.31 in, the door opening is 13.30 x 11.30 in and 13.10 x 11.10 in of clear space is available on the door. Welded mounting brackets carry 0.31 in holes spaced 14.75 in vertically and 10.00 in horizontally, for an overall mounted height of 15.50 in. Internal threaded weld studs accept the optional 14R1311 inner panel (12.75 in (324 mm) x 10.88 in (276 mm)); alternative inner panel options are also available. A bonding stud is provided on the door and a grounding stud on the enclosure.

The HJ14126LP is listed to UL 508A Type 3R, 4, 12 and 13 (UL file E65324) and CSA Type 3R, 4, 12 and 13 (certificate LR21001), and complies with NEMA Type 3R, 4, 12 and 13 and IEC 60529 IP66. It is REACH and RoHS compliant, and ships in a box with a shipping weight of 17 lbs (7.71 kg).