B-Line Eaton series open racks, Steel, Telco gray powder coat, 12-24 panel mounting holes, 67 mounting spaces, Top channel style, Seismic Zone 4, ope

Yes. The Eaton B-Line SB5857140TG is built as a Seismic Zone 4 open duct unequal flange rack, so it is the version to specify where the structural drawing calls for Zone 4 seismic bracing on telecom racking. It is also UL Listed.

67 mounting spaces, on rails punched with 12-24 panel mounting holes. That means you tap 12-24 screws directly into the rail, no cage nuts, which is the standard telco convention rather than the square-hole EIA pattern used on server cabinets. If your gear ships with 10-32 or M6 hardware you will need 12-24 screws to mount it.

An open frame rack is the right pick when the room itself is secured and you want free cable access on all four sides plus natural airflow. The SB5857140TG is an open duct unequal flange design with a top channel style, which is aimed at cross-connect and cabling-dense telco work where you are routing vertically off the rack. If you need physical security at the equipment, lockable doors, or filtered/contained airflow, you want an enclosed cabinet instead, not this frame.

Unequal flange means one flange of the upright is deeper than the other, giving you a channel alongside the mounting rail to dress and tie cable without it crossing the equipment faces. Paired with the top channel style, it lets you bring cable down from overhead ladder rack into the rack's own duct. Vertical managers, ladder rack, and mounting hardware are separate items, not part of the rack itself.

Order Eaton B-Line part number SB5857140TG. That single MPN covers the configuration: steel, Telco gray powder coat, top channel, 12-24 tapped rails, 67 mounting spaces, Seismic Zone 4.

It is finished in Telco gray powder coat over steel, the standard gray used across B-Line series open frame racking, so it lines up visually with existing telco rack rows rather than standing out like a black cabinet.