B-Line SB315A120TG Eaton auxiliary supports

Steel, with a telco gray powder coat. That is the standard finish family for data and telecom room support hardware, so the column matches cable runway, ladder rack and relay racks already finished in telco gray rather than standing out in a plain galvanized or black finish. The powder coat also means it is intended for dry indoor equipment rooms, not exterior or wet locations.

An auxiliary support like the B-Line SB315A120TG is a floor-mounted steel post that carries overhead cable runway, ladder rack or busway where there is no wall or ceiling structure close enough to support it. Contractors use it in open equipment rooms and data centers to pick up runway spans mid-run, or at the end of a run where the rack line stops short of a wall. It is a structural support, not a rack, so you order your runway, splice kits and anchors separately.

Order it as SB315A120TG. That is the Eaton B-Line manufacturer part number for the 120 inch pipe column in telco gray, and it is the number to put on a submittal or a purchase order. The 120 in the number tracks the 120 inch height.

The column ships at a fixed 120 inches. If your runway elevation is lower, field cutting a powder coated steel column leaves a raw edge that has to be touched up, and it changes how the top fitting lands. For a shorter run, spec the pipe column length that matches your finished runway height rather than trimming this one.