B-Line Eaton series open racks, Steel, Telco gray powder coat, 12-24 panel mounting holes, 45 mounting spaces, Top channel style, Seismic Zone 4, net

Yes. The SB5763084TG is built as a Seismic Zone 4 network bay closed duct rack, so it is the version to specify where the local code puts the building in the highest seismic zone. Framing steel is ASTM A570 grade 33. It is also UL Listed. Anchoring to the slab and any overhead bracing still has to follow the seismic detail on your drawings.

45 mounting spaces on an 84 inch tall frame. That is the usable panel space for switches, patch panels and rack-mount gear. Width is 19 in, the standard equipment mounting width, and the frame depth figure is listed at 84 in.

The mounting rails come with 12-24 tapped panel mounting holes, so equipment and patch panels thread straight in with 12-24 screws. No cage nuts or square-hole hardware needed. Order your 12-24 rack screws separately, they are not part of the rack.

A closed duct network bay rack carries an enclosed vertical wireway alongside the mounting rails so cross-connect and patch cabling is routed inside the bay rather than hanging off the sides. Use it in telco and network closets where you are terminating a lot of copper and want the runs contained and dressed. A plain open relay rack is the cheaper pick when you are mounting a few pieces of gear and cable volume is light. This one is also the Seismic Zone 4 version, which matters in high seismic jurisdictions.

114 lb for the frame alone, before any equipment. Plan on two people to stand an 84 inch bay upright and hold it while it is anchored. Add the weight of your gear when you check the floor loading.

Yes, the rack is a top channel design, which gives you a channel across the top of the bay to tie overhead ladder rack or runway into. The channel is also where seismic overhead bracing typically attaches. Ladder rack, runway, and the mounting hardware for it are separate items.

The finish is Telco gray powder coat, the standard gray used across telecom and network bays, so it lines up visually with existing Telco gray equipment racks and ladder rack. Powder coat over steel holds up to handling in a data closet better than wet paint.

ASTM A570 grade 33 is a hot-rolled carbon steel sheet and strip grade, the 33 referring to its minimum yield strength in ksi. It is the structural steel B-Line uses through this open rack frame, and it is what lets the bay carry equipment loads and qualify for Seismic Zone 4 duty. For a specific equipment load rating, work to the load figures on your project spec.