Hammond DNRR63HDW 36U 2-Post Welded Open Frame Rack, 1500 lb

The DNRR63HDW is a 36U, 19-inch EIA 2-post open frame rack from the DNRRHDW heavy-duty series, built for IT, telecom and data center installations where equipment weight exceeds the capability of standard welded racks. It ships as a welded assembly with a freestanding floor-mount design, so it can be anchored and loaded without on-site frame assembly.

Construction is 10-gauge welded mild steel finished in RAL9005 black powder coat, a finish the series lists as GREENGUARD, TSCA and RoHS compliant. The series is rated to 1500 lb under UL2416 (UL File # E474597) and is seismic rated to 400 lb (181.44 kg) dynamic load with Ip = 1.5 in accordance with IBC, CBC, NBC and ASCE standards. Four integrated 10-32 x 1/2 studs provide bonding and grounding points.

Overall dimensions are 69.13 in high x 20.56 in wide x 15.00 in deep (1756 x 522 x 381 mm), with a nominal listed width of 20 in. The mounting area measures 63.00 in (1600 mm) of usable rail height — 36 rack units — on 19.00 in (483 mm) centers with a 3.00 in (76 mm) rail depth. Rails are double tapped 10-32 UNF on front and rear flanges to standard EIA spacing and carry rack unit markings for error-free equipment placement. The base plate footprint is 11.00 in x 15.00 in with four 0.75 in diameter floor anchor holes.

Side ganging and accessory mounting provisions allow the DNRR63HDW to be expanded and combined with cable management; the series lists RB-VCM36 as the matching vertical cable manager for this height, and two racks plus the Four Post Rack Kit (FPRK) convert the pair into a four-post configuration. The rack is TAA-compliant and manufactured in North America, with a shipping weight of 76 lbs (34.47 kg).