B-Line Eaton series open racks, Mounting spaces: 26, 5" Space between racks, Telco gray powder coat, Rack extension

The Eaton B-Line SB5641050TG is a rack extension, not a standalone rack. It bolts onto an existing B-Line series open frame rack to add 26 mounting spaces, so you need a base rack already standing before this is useful.

Yes. The extension is 19 inches wide, matching the standard 19 inch EIA rack width used by patch panels, switches, and rack-mount UPS gear.

The 5 inch spacing sets the gap between the base rack and the extension frame, which is where vertical cable management and jumper runs pass between the two bays. It is a fixed dimension on this model, so the finished footprint of the pair is the base rack plus 5 inches plus the extension.

It measures 50 inches high, 50 inches in length/depth, and 19 inches wide, and weighs 47 pounds bare. Worth checking your ceiling clearance and floor loading before you add it, since the equipment you load in will add well beyond that 47 pounds.

An open frame extension like the SB5641050TG gives you all-around access to cabling and free air movement, which suits a locked, controlled telecom or IDF room where physical security is handled by the door. If the gear sits in a shared space, a warehouse corner, or anywhere dust and tampering are concerns, an enclosed cabinet with doors and side panels is the better call. Open frames also cost you nothing in depth clearance for door swing.

Construction is steel with a telco gray powder coat, the standard telecom equipment color, so it lines up visually with existing B-Line telco gray open frame racks in the same room.

The record for this rack extension shows certifications as not applicable, so if your drawing calls for a specific listed seismic or bonding-rated frame, specify that separately rather than assuming it here.