B-Line Eaton series open racks, Used to mount electronic switching equipment, Steel, Telco gray powder coat, 12-24 panel mounting holes, 66 mounting

Yes. The SB5859138TG is built as a Seismic Zone 4, closed duct unequal flange rack, so it is intended for central office and data spaces where seismic anchoring is required. It is also UL Listed. Anchoring hardware and floor detail still follow your structural drawings.

66 mounting spaces on a frame 23 inches wide, with 12-24 tapped panel mounting holes on the rails. That is a tall single-bay frame for switching and transmission gear, not a standard 45U enclosure, so plan your equipment stack against the 66 spaces rather than assuming a typical cabinet height.

The rails come tapped with 12-24 panel mounting holes, so you mount directly with 12-24 screws. No cage nuts or square-hole clip nuts are needed. If your equipment ships with M6 or 10-32 hardware, order 12-24 screws to suit.

Unequal flange means the two upright faces are different depths, which sets how far equipment sits forward or back and leaves a defined cable channel down the side. Closed duct means that channel is enclosed for vertical cable runs. On the SB5859138TG it pairs with a top channel style for overhead cable rack or ladder attachment, and the frame is double sided so you can mount from both faces.

The frame is finished in telco gray powder coat over steel, the standard shade used across central office lineups, so it lines up visually with existing B-Line telco gray bays. Powder coat over steel also holds up to repeated equipment changes better than painted sheet finishes.

An open frame such as the SB5859138TG gives you all-around access and free airflow for switching and transmission equipment, with a closed side duct for cable management and a top channel for overhead cable rack. It gives no physical security or dust protection, so if the room is not access controlled, or you need lockable doors and side panels, an enclosed cabinet is the better call.

It weighs 105 lb as a steel frame, and it is a tall unit, so figure two people to stand and align it before anchoring. Plan lifting and staging around the bare 105 lb before any equipment goes in.