Hammond DNRMU1924BK1 3U 24-Inch Deep Solid Rack Shelf, 300 lb

The DNRMU1924BK1 is a 3U dual-channel solid rack shelf measuring 19.00 in (483 mm) wide by 24.00 in (610 mm) deep, designed to carry heavy equipment on two-post open frame racks. It suits IT and AV integrators, broadcast and telecom technicians, and facilities teams who need a deep, flat platform for amplifiers, switches, UPS units, converters or other non-rack-mountable gear.

Construction is heavy-duty 16 gauge mild steel, finished in textured RAL9005 black powder coat that complies with the Greenguard guidelines for indoor air quality. The front and rear lips are folded for extra strength and double as equipment retainers, keeping gear from sliding off the shelf. The solid pan version provides a continuous work surface; a vented equivalent is offered in the same series for applications where upward heat movement matters.

Overall drawing dimensions are 24.00 in (610 mm) deep with a shelf body 17.62 in (448 mm) wide (17.51 in / 445 mm inside) and a front panel height of 5.22 in (133 mm). Mounting height is 3U / 5.25 in (133 mm). The series is load rated to 300 lbs (136 kg), while the part drawing notes a maximum weight load capacity of 275 lb; size the installation to the more conservative figure where that matters.

DNRMU1924BK1 ships as a kit comprising the shelf, four DNRM mounting brackets, eight 10-32 x 1/2 screws and eight 10-32 KEP nuts, with mounting hardware included for both 10-32 and 12-24 rails. The front panel uses eight 0.25 x 0.38 in mounting slots. It is intended for use with Hammond heavy-duty DNRR and DRZ4 double-tapped two-post racks or any 2 post rack, is RoHS and REACH compliant, TAA-compliant for federal GSA schedule purchases within the USA, and is manufactured in North America.