Hammond DNRMA2320BK1 3U 23-Inch Adjustable Rack Shelf, 275 lb Load

The DNRMA2320BK1 is a 3U adjustable rack shelf with a 23 in mounting width and a 20 in overall depth, built to support servers, chassis and non-rackmount equipment in open relay racks and panel-mounted rack applications. It suits IT and network teams, AV and telecom integrators, and control-system builders who need a heavy-duty shelf that can be positioned to match the depth of the gear being carried.

Construction is 14-gauge mild steel with a black textured powder coat finish that is GREENGUARD, TSCA and RoHS compliant. The shelf carries a maximum load of 275 lb (125 kg). Movable side brackets can be mounted inside or outside the rack at four different depths, so the shelf can be set to distribute load across the rack mounting points and reduce stress on the rails.

Key dimensions from the part drawing include a 23.00 in (584 mm) mounting width, 20.00 in (508 mm) depth and 21.56 in (548 mm) inside width, with four 0.25 x 0.44 in mounting slots for the rack-rail attachment. The assembly consists of the shelf plus left and right side brackets, secured with six 8-32 x 1/2 in screws and six 8-32 KEP nuts. Mounting hardware is included for both 10-32 and 12-24 rails.

DNRMA2320BK1 ships unassembled in a knockdown design for easier handling and shipping protection, with a shipping weight of 17 lbs (7.71 kg). It is manufactured in Canada in an ISO 9001 certified facility, is TAA-compliant and USMCA compliant, and is RoHS and REACH compliant.