These fittings are used in conjunction with cable trays to support cables in ventilation holes, assist with directional change of piping systems, and aid cable channelling around obstacles. Our cable tray design considerations guide details key factors to consider when designing cable tray systems for industrial and commercial applications. They offer an alternative to open wiring or electrical conduit systems and are necessary for cable management in commercial and industrial construction, as well as. ABB designs and manufactures cable tray systems, including perforated tray, cable ladder, channel tray and strut (metal framing), directly from production facilities in Canada and Saudi Arabia. Use Cable Tray Nut / Bolt for Fixing to Tray (PNB612) Compatable with Brands such as : Unstrut |.