The bottom part of the perforated cable tray has openings, which provide ventilation and prevent overheating. It has about 60 % flat area which supports the cables laid within the longitudinal side rails. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. Hubbell's NEXTFRAME® Ladder Tray is the effective and widely used cable runway that supports and delivers bundles of cable between cabinets, racks, and closets, along walls, and suspended from ceilings. The Ladder Tray features light, rugged, tubular steel construction. What is Cable Tray? A cable tray is a unit, or set of units. Our tray features our Safe-T-Edge design that involves "T" welding the lateral wires to the bottom edge of the top wires and carries a patent for optimized wire diameters for maximized working load.
[PDF Version]