Cable routing duct, 4 fields, attachable, H x W x D176 x 1050 x 135mm, RAL9010. Electrical installation duct system RK routing duct set made of plastic, as a transition between laid cables or installation ducts and distribution cabinets. Routing duct set consisting of duct profile with predetermined breaking points for notching for installation ducts for depths of 40, 50 and 60 mm. Pluggable and movable profile holders with plaster compensation, with locking lugs for distribution cabinets IP44/55 with depths of 150 and 205 mm. Two profile holders for cabinets up to field width 800 mm and three profile holders up to field width 1300 mm. Attachable end caps for left and right must be closed.