Corner construction piece with flanged, round, and unperforated side rail, featuring connector holes for attachment and a riveted support plate, designed for wide-span cable trays and wide-span cable ladders. It allows for the cost-effective creation of 90° corner and T-connections. The width-independent component can be used to combine different widths and branches, offering more flexible design of routing paths during on-site assembly, including proportionate fastening accessories made of stainless steel. The radius of the fitting is designed to allow cable installation according to DIN/VDE 0298 Part 3. Joint points must be supported by an appropriate load-bearing structure nearby. Usable for: Wide-span cable tray WRL 150, wide-span cable tray WRU 150, wide-span cable tray WRLM 150, wide-span cable ladder WSL 150, wide-span cable ladder WSLM 150. Dimensions (approx. measurements): Height H (clear internal dimension): 151.5 mm, external dimensions: 750 mm, internal rail radius R: 500 mm. Material: Stainless steel, material number 1.4301, AISI 304.