Set for mounting horizontal support plates or 19-inch frames in PLA housings. Housing dimensions W 1250 mm. Universal mounting accessories. 2 support rails for mounting 19-inch frames or horizontal mounting plates in PLA cabinets with a height of 1250 mm. Depth adjustable every 50 mm with cage nuts. Cut-out dimensions 11 x 13 mm. Sheet steel, galvanized. Set consisting of left and right support profile and mounting accessories.