B-Line SB5767108YZ Eaton series open frame racks, Steel, Yellow zinc, 12-24 panel mounting holes, 48 mounting spaces, Top channel style, Seiemic zone 4, network bay open duct rack, ASTM A1011SS

The SB5767108YZ gives you 48 mounting spaces on a 108 inch tall frame, so you can plan a full network bay of patch panels and switches without stacking a second rack. Panel mounting is 12-24 tapped holes, which is what most rack-mount network gear and cage-free panel hardware expects.

It's tapped, not square-hole. The rails carry 12-24 threaded panel mounting holes, so you mount gear with 12-24 screws directly and no cage nuts are required. If your equipment shipped with M6 cage nut hardware, you'll need to swap to 12-24 screws.

Yes. The SB5767108YZ is built as a seismic zone 4 network bay open duct rack, which is the rating California and other high seismic jurisdictions ask for on telecom and data room racks. It is also UL Listed.

An open frame two-post style bay like the SB5767108YZ is the right call in a secured, access-controlled telecom or MDF room where you want unrestricted cable access and free airflow on every side. Go to an enclosed cabinet instead when the space is shared or public and you need locking doors, or when you need dust and contamination control. This one is an open duct network bay with a top channel for overhead cable routing, so it is built to work with ladder rack and vertical duct rather than to close in.

The frame weighs 130 lb empty. That is a two-person lift at minimum, and once it is loaded with switches and patch panels the floor anchoring is doing real work, which is the point of the seismic zone 4 construction. Plan for anchor hardware into the slab and confirm your floor loading before you load a full 48 spaces.

Yes, that is what the top channel style is there for. The SB5767108YZ is configured as an open duct network bay with a top channel, so cable coming off overhead ladder rack drops into the bay rather than being routed around a closed top. You will still be ordering the ladder rack, runway kits, and any vertical cable manager separately.

The frame steel is specified as ASTM A1011SS, and the assembly is UL Listed. Between the material standard, the UL listing, and the seismic zone 4 designation, those are the three lines most data room and telecom submittals ask for on a floor-anchored open bay.

Yellow zinc is a plated corrosion-resistant finish over the steel frame, common on telecom racks where the bare steel needs protection and bonding continuity matters more than a painted cosmetic look. The steel itself is ASTM A1011SS structural quality sheet. If your job spec calls for black powder coat to match existing bays, this is not a visual match.