Hammond HLP4U31BK 4U 31 in Low-Profile Wall-Mount Cabinet, 200 lb

The HLP4U31BK is a 4U low-profile wall-mount cabinet from the HLP Series, built for mounting 19-inch EIA-310 compliant equipment in network closets, telecom rooms and structured cabling installations where a defined load rating matters. It is a UL Listed 2416 wall-mount rack (UL File # E474597) load rated to 200 lb (90 kg) for installed equipment, making it suited to IT, AV and telecom integrators working in government, education and commercial environments.

Construction is mild steel with a RAL9005 black powder coat finish described on the drawing as painted sand texture black; the finish is GREENGUARD Gold and TSCA compliant for indoor IT spaces, and the mounting rails are painted white. Overall dimensions are 31.00 in H x 27.50 in W x 11.15 in D (787 x 699 x 283 mm), with a nominal listed size of 31 in x 30 in x 11 in (787 x 762 x 279 mm) and a shipping weight of 64 lb (29.03 kg).

Rack capacity is configured as 2U pivot plus 4U fixed, with tapped 10-32 rails on an 18.35 in (466 mm) 19-inch mounting pattern. Maximum vertical usable depth is 21.90 in (556 mm) with both rails installed, or 26.90 in (683 mm) with the fixed rail only. The internal adjustable rails offer 180 degrees of flexibility, and the secondary rail can be set in five positions: vertical up or down, 30 degrees up or down, and 90 degrees facing the user.

HLP4U31BK ships as a rear body with door cover, a 2U rotating rail (HLP2UR), 4U main mounting rails (HLP4UFR), up to two installed locking latches (DLRKHLP), 25 10-32 mounting screws and installation instructions. Top and bottom double knock-outs and a 4 in fan mount grill pattern support cable entry and cooling accessories; wall mounting hardware is not included.