Cable tray side entry method

The side entry method allows cables to be routed into a cable tray from the side, providing easier access and installation flexibility while maintaining proper support and bend radius.OverviewThe side entry method is used when cables need to enter a tray from a lateral direction rather than the tray ends. This is common in installations where equipment or junction points are positioned alongside the main tray run. Side entry is particularly useful for center-hung or wall-mounted trays, allowing cables to be deposited from either side without disturbing the main tray alignment .Installation StepsPrepare the Tray: Remove or cut back side wires or panels to create an opening for cable entry. The number of wires to remove depends on the tray width and type, especially for wire mesh or basket trays .Position the Cables: Align the cables with the tray opening, ensuring that the minimum bend radius is maintained to prevent conductor damage. For instrumentation or control cables, a rung spacing of 150–230 mm (6–9 inches) is recommended to support small cables adequately .Secure the Cables: Use tray clips, clamps, or built-in tabs to hold the cables in place. For wire basket trays, universal clamps or side clips can be installed quickly without tools, and they allow easy removal for maintenance .Support Considerations: Ensure that the tray is properly supported near the side entry point. Center-hung supports or trapeze hangers are commonly used, with a maximum support spacing of 3.6 m and load capacity per hanger ranging from 318 to 340 kg (700–750 lbs) .Cover and Protection: If the tray has a cover, ensure it is reinstalled securely to protect cables from mechanical damage and environmental exposure. Solid or ventilated covers can be used depending on heat dissipation and aesthetic requirements .Best PracticesAlways maintain cable bend radius to prevent insulation damage.Use adequate support near the side entry to prevent sagging or overloading.For wire mesh trays, cut side wires cleanly and avoid sharp edges.Ensure compliance with local electrical codes and manufacturer guidelines for tray spacing, load, and cable type .Side entry is ideal for installations requiring frequent access or where cables must be routed from multiple directions. By following these steps, the side entry method provides a safe, efficient, and flexible way to route cables into a tray system while maintaining structural integrity and cable protection.