B-Line Eaton series open racks, Double sided, Steel, Telco gray powder coat, 12-24 panel mounting holes, 75 mounting spaces, Top angle style, Seismic

Yes. The SB5863138TG is specified as a Seismic Zone 4 network bay closed duct rack, so it is built for the highest seismic zone classification. It is also UL Listed. Anchoring and any top bracing still have to follow the engineer's drawings for the room, but the rack itself is the seismic version rather than a standard open frame.

Yes. The frame is 19 inches wide with 12-24 panel mounting holes, which is the standard telco rail pattern for 19 inch equipment. Panels, switches and rack-mount shelves with 12-24 hardware bolt straight in. If your gear came with 10-32 or M6 screws, order 12-24 rack screws to match the rails.

Double sided means the rack is drilled and usable for mounting from both faces, so equipment and duct can be accessed front and rear rather than only from one side. Combined with the closed duct network bay design, it suits a rack placed in a row with access on both sides instead of pushed against a wall.

Top angle style means the frame terminates in an angle bracket at the top, which is the standard attachment point for overhead cable runway, ladder rack, or an auxiliary framing channel to tie the bay into the room's overhead support. On a Seismic Zone 4 bay that overhead tie-in is normally part of the bracing scheme, so plan the runway attachment along with the rack.

An open frame bay like the SB5863138TG gives you access from both sides and free air movement, with cable managed through the closed duct sections rather than behind doors. Pick it for a secured, dedicated telecom room where you want the most cabling access and 75 usable spaces in one footprint. Choose an enclosed cabinet instead when the equipment sits in shared or public space and needs a locked, dust-restricted enclosure.

The rack weighs 151.25 lb empty. At 138 inches tall that is a two-person lift minimum, and it needs to be stood and anchored before any equipment loading. Plan the floor anchors first, since a bay this tall is unstable until it is bolted down.

Steel construction with a Telco gray powder coat, which is the standard match for other telco-gray frames, runway and cabinets in a distribution room. If you are adding a bay to an existing row of gray B-Line frames, the finish will match.