The 200 cable tray support has a width of 200 millimeters.

A 200 cable tray is designed with a nominal width of 200mm, which refers to the inside usable width for routing cables, not including the side rail thickness . This width allows for flexible cable management, accommodating various cable types and sizes while ensuring proper airflow, heat dissipation, and ease of installation. Cable trays of this size are available in multiple materials, including PVC, aluminum, galvanized steel, and powder-coated finishes, and come in different styles such as ladder, mesh, perforated, or enclosed trays . When selecting a 200mm cable tray, it is important to consider height, material thickness, and load capacity, as these factors affect structural support and cable fill compliance . For example, ladder-type trays may have different side rail heights, which influence the maximum number of cables and airflow efficiency. Proper support spacing and mounting hardware should also be chosen according to the tray type and expected cable load to ensure long-term reliability . In summary, a 200 cable tray support is 200mm wide, and this dimension is standardized to provide compatibility with fittings, covers, and other cable management components while supporting safe and efficient cable routing .