Vertical ladder, heavy building class, with continuously three-way perforated side beams, beams made of U-profile 60x40x4 mm, rungs made of profile rail 40x22 mm to be screwed in.
Beams and rungs are delivered not mounted including screws and nuts. The cover RD can only be mounted in conjunction with the cover extension STD-A.
Technical information cable routes 
Installation instruction cable routes