Corner attachment piece, with corrugated, round and unperforated side rail, with connector holes for the connection, as well as riveted support plate, for wide-span cable trays and wide-span cable ladders, for the cost-effective production of 90° corner and T-connections, width-independent component for the combination of different widths and outlets and for the more flexible design of the route paths during assembly on site, including hot-dip galvanized proportional fastening accessories. The fitting radius is designed so that the cables can be laid in accordance with DIN/VDE 0298 Part 3. Joints must be supported in the immediate vicinity by an appropriate supporting structure. Can be used for: Wide span cable tray WRL 105... Wide span cable tray WRU 105... Wide span cable ladder WSL 105... Dimensions (approx. dimensions) Height H (clear inside dimension): 106.5 mm External dimensions: 750 mm Inner beam radius R: 500 mm Material: Steel, hot-dip galvanized according to DIN EN ISO 1461