Cable Tray Systems

Cable tray systems are an assembly of sections or units forming a rigid structural system used to securely fasten or support cables or raceways. They are used as an alternative to open wiring and electrical conduit systems in commercial and industrial applications. They are especially useful in situations where changes in wiring systems are expected, since new wires and cables can be installed by laying them in the tray, rather than pulling them through conduit. Several types of cable trays are used in different applications.

Solid-bottom cable trays provide continuous support for cables, but require fittings or cutting in order to insert or remove cables. A solid enclosure for cables is a cable trough or cable channel.

Ventilated cable trays have openings in the bottom to allow air circulation, as well as water drainage. Small wires and cables may exit the tray through the ventilation openings. Some ventilated cable trays have solid covers to protect cables from falling dust, debris and water.

Wire mesh or basket cable trays are used to route and support small cables and wires. The mesh is smooth to prevent cutting and abrasion to the cable during installation and allows air to flow through the tray. Wire mesh trays can be bent or cut in configurations to accommodate complex cable runs and can be mounted on walls, overhead or under floors.