B-Line Eaton series open racks, Steel, Telco gray powder coat finish, 12-24 panel mounting holes, 48 mounting spaces, Top channel style, Seiemic zone

The SB5767138TG gives you 48 mounting spaces of usable panel area on a single bay. That is enough for a full network bay build with switches, patch panels and horizontal managers stacked on one frame, rather than splitting the run across two racks.

Both rails carry 12-24 panel mounting holes, which is the standard tapped thread for telecom and network gear in open frame racks. You mount panels and equipment directly with 12-24 screws, no cage nuts needed. Gear supplied only with M6 or 10-32 hardware will need 12-24 screws sourced instead.

It is built as a seismic zone 4 network bay open duct rack, which is the highest seismic classification used for this kind of equipment frame. It is also UL Listed. For a hospital, data center or government facility where the structural engineer calls out seismic bracing on the telecom frames, this is the frame type to specify rather than a standard open rack.

The frame measures 23 in wide. When you are laying out a lineup of bays, allow for that width per rack plus your vertical cable managers between bays, and keep front and rear service clearance to whatever your local electrical code requires for the room.

At 136 lb the frame is a two-person lift at minimum, and at 138 in tall it will not stand up in a passenger elevator or a standard door opening without being laid flat. Plan the delivery path horizontally and stand it up in the room. The mass is also worth confirming against the floor loading and anchor spec for a seismic installation.

The top channel runs across the head of the frame and is what you use to tie the bay into overhead cable runway or ladder rack, and to gang multiple bays together into a continuous lineup. If you are building a single standalone rack with no overhead pathway, that top channel matters less; in a network room with runway above every bay, it is the reason to pick this style.

An open duct rack like the SB5767138TG leaves all four sides accessible, which is what you want for patch panel density, cross connect work and cooling in a controlled telecom room. It gives no physical security and no dust protection, so if the equipment sits in a shared space, a mechanical room or anywhere the public reaches, a locking enclosed cabinet is the better call.

Steel construction with a telco gray powder coat, which is the standard color used across telecom equipment frames, so it lines up with existing telco gray bays in most network rooms. Powder coat over steel also holds up to screws being driven and removed repeatedly across the rail as panels get reconfigured.