B-Line SB5779108YZ Eaton series open frame racks, Steel, Yellow zinc finish, 12-24 panel mounting holes, 75 mounting spaces, Top channel style, Seismic Zone 4, network bay closed duct rack, 11 gauge, ASTM A1011SS

The SB5779108YZ provides 75 mounting spaces on a frame 108 inches tall. That is a taller-than-standard bay (a typical 7-foot two-post rack lands around 45U), so plan ceiling clearance and cable tray height before you commit to it.

Rails come with 12-24 panel mounting holes already tapped, so patch panels and switch brackets thread straight in with 12-24 screws. No cage nuts and no square-hole hardware, which also means gear supplied only with M6 square-hole kits will need 12-24 screws instead.

Yes. The SB5779108YZ is built as a Seismic Zone 4 network bay closed duct rack, which is what a hospital, school, or government telecom room in a high seismic area is usually specified for. It is also UL Listed. Anchoring to the slab and overhead bracing per the engineer's drawing is still part of the install.

Footprint is 23 inches wide by 108 inches deep, and the frame stands 108 inches high. The depth figure is unusually large for a two-post style bay, so lay it out against your room dimensions and required front and rear working clearance before ordering.

Frame is steel at 11 gauge to ASTM A1011SS, and the rack weighs 130 lb. Plan on two people to stand it and anchor it, and check the assembled load path if you are stacking heavy UPS or battery gear low in the bay.

The SB5779108YZ is a top channel design, which gives you a structural channel across the top of the frame for attaching runway, ladder rack, or overhead seismic bracing rather than having to land it all on the ceiling. That is how these network bays are normally tied together in a row.

An open frame bay like the SB5779108YZ is the right call in a secured telecom or MDF room where you need fast two-sided access for patching and unrestricted airflow, and it gives 75 mounting spaces in a 23 inch wide footprint. Choose an enclosed cabinet instead if the equipment sits in a shared, public, or dusty space and needs locking doors and side panels for physical security.

The finish is yellow zinc plating over steel rather than paint. Zinc plating is conductive, unlike a powder coated black rack where you have to scrape paint or use paint-piercing washers to bond rails. It is a functional plated finish, so it will not match black cabinets aesthetically.

Order it as B-Line SB5779108YZ, the Eaton B-Line series open frame rack in yellow zinc. Single model, so there is no finish or height option to specify.