B-Line SB5874138TG Eaton series open frame racks, Steel, Telco gray powder coat, 12-24 panel mounting holes, 37 mounting spaces, Top channel style, Seismic Zone 4, network bay closed duct rack, ASTM A1011SS

Yes. The SB5874138TG is built as a Seismic Zone 4 network bay closed duct rack, so it is the version to specify where the drawing calls for Zone 4 seismic anchorage. It is a top channel style frame, which is how the rack ties into overhead cable runway or auxiliary framing above the row. Anchorage hardware and the overhead bracing themselves are separate items from the rack frame.

12-24 screws. The rails are tapped with 12-24 panel mounting holes, so no cage nuts and no square-hole hardware. Most telco patch panels, rack-mount UPS ears and network gear ship with universal hole patterns that accept 12-24; if your equipment came with 10-32 screws, you will need 12-24 replacements. Order mounting screws separately.

The stated dimensions are 138 in height, 138 in length/depth and 19 in width. At that height it is a tall bay, so verify your ceiling clearance and the door and elevator path into the room before delivery. The frame weighs 146.55 lb bare, before any equipment load.

An open frame bay like the SB5874138TG gives you access to cabling from all four sides and better passive airflow, which is why it is the norm in telecom rooms and central offices. It gives you no physical security and no dust protection, so for a shared closet, a public corridor or a mixed-tenant space where gear must be locked up, a fully enclosed cabinet is the better call. This particular frame is the closed duct, Seismic Zone 4 configuration with a top channel, so it also suits rooms where cable is managed vertically in the duct and tied to overhead runway.

Steel to ASTM A1011SS, finished in Telco gray powder coat. Telco gray is the standard finish across the Eaton B-Line open frame rack line, so a bay added to an existing row of B-Line racks in that finish will match. If your existing bays are black, this one will not.

One configuration: SB5874138TG, Telco gray, 37 mounting spaces, 12-24 tapped rails. There is no size or finish selection to make. Order by that model number and it is the Seismic Zone 4 closed duct network bay every time.