B-Line Eaton series open racks, 340 lb, Steel, Telco gray powder coat, 12-24 panel mounting holes, 56 mounting spaces, Top channel style, Seismic Zon

Rated load capacity is 340 lb across the 56 mounting spaces. That is the figure to budget against when you stack switches, patch panels and rack PDUs. The rack itself weighs 118 lb, which matters for the floor loading calculation and for getting it into a closet.

The SB5773084TG is built as a Seismic Zone 4 network bay closed duct rack and is UL Listed. It is fabricated from 11 gauge steel, which is what gives the frame its seismic rating over lighter-gauge relay racks. Anchoring to the slab per the seismic detail on your drawings is still the installer's responsibility.

An open frame rack such as the SB5773084TG gives you access from all sides and free convection cooling, and it is the usual choice in a secured telecom or IDF room where the room itself provides the physical security. Choose an enclosed cabinet instead when the equipment sits in an open office, warehouse or shared space and needs lockable doors and dust protection. This one is a closed duct network bay style with a top channel, so it is intended for a bay line-up with cable managed overhead.

The top channel style on the SB5773084TG is the mounting point for joining racks into a continuous bay line-up and for landing overhead ladder rack or runway above the frame. If you are setting several racks side by side, the channel is what ties the line together at the top, so order your runway and splice hardware separately to suit the run.

The finish is a telco gray powder coat over steel, the standard gray used across telecom bay equipment, so it lines up visually with existing telco-gray racks and ladder rack in the same room. Powder coat over 11 gauge steel also holds up to being knocked about during cable pulls.