Hammond RZVS1921BK1 20.84 in Deep Vented Side-Mount Rack Shelf

The RZVS1921BK1 is a vented, side-mounted fixed shelf from the RZVS Series, built to carry non-rackmount equipment inside four-post cabinets without occupying front rack space. Instead of bolting to the front mounting rails, it fastens to the sides of both pairs of combination rails, so the full rack face stays open for active equipment. It suits IT and AV integrators, data center and telecom teams, and OEM or industrial users who need a sturdy platform for devices that were never designed for rack ears.

Construction is steel (mild steel), finished in a black powder coat that is GREENGUARD Gold Certified, TSCA and RoHS compliant. The series specifies 16-gauge steel supporting up to 170 lb (77 kg); the part drawing notes heavy duty, 14 GA. steel construction. The shelf surface is vented with 0.24 x 1.50 in slots to promote upward airflow. The rear flange is folded upward to add rigidity and act as an equipment retainer, and it carries a protective rubber channel that helps prevent scratches and cable chafing. Folded side flanges make hardware installation from above easier and add strength.

Overall dimensions for RZVS1921BK1 are 17.75 in (451 mm) wide, 20.84 in (529 mm) deep and 1.31 in (33 mm) high, with a 0.31 in (8 mm) rear-only flange. Slotted side mounting (0.25 x 2.00 in slots) allows adjustment to suit most rail depth positions, and mounting hardware is included. Shipping weight is 10 lbs (4.54 kg).

Mounting requires two pairs of combination rails in the cabinet. For a traditional equipment rack, order the FSRA fixed shelf rail adapter; with Hammond CPR square-hole rails, order a CPRSA rail adaptor for each shelf. The RZVS1921BK1 is manufactured in North America in an ISO 9001 certified facility and is TAA compliant.