Vertical elbows facilitate the movement of cable runs between different elevations, such as moving from a ceiling run down to a control panel or up to another floor. Vertical Inside: For upward directional changes. The 90° Vertical Elbow provides essential support and enables seamless cable management throughout your cable routing system. Class 1: Designed for use with NEMA Classes 12B and 12C cable trays. All fittings are available in sizes and types corresponding to the straight cable tray sections. These fitting are including: elbow, horizontal cross, vertical inside riser, reducers, cover clip, joint connector, horizontal cable tray tee, horizo. association representing the major electrical equipment manufac-turers in the U. The Cable Tray ng standards, performance standards, test standards and application in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or. Usage: is used to complete the whole project as it is one of the cable tray accessories, that make the cable go through all available space easily as it can go from the high path to lower one, and the opposite, with different directions too. As there are types: ( Vertical 45-In – Vertical 45-Out –. 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.