T-piece for cable trays with flanged, round, and unperforated side rails, featuring connector holes for connections and an integrated joint connector. It is suitable for wide-span cable trays and is shape-stable due to a rear-mounted support profile and the riveted, flanged, and unperforated base. This design allows for cost-effective production of 90° T-branches and intersections, depending on width in the main direction, including proportionate fastening accessories that are hot-dip galvanized. The radii of the fittings are designed to allow cable installation according to DIN/VDE 0298 Part 3. Joints must be supported by an appropriate load-bearing structure in close proximity. Usable for wide-span cable trays WRL 200 and WRU 200. Dimensions (approximate): clear height H x clear width B: 201.5 x 605 mm. Notch of the wide-span cable tray: 1003 mm + B. Length in the branch direction: 750 mm. Inner rail radius R: 500 mm. Material: Steel, hot-dip galvanized according to DIN EN ISO 1461.