For attaching the TS punched section with mounting flange where access to installed equipment, such as mounting plates, is blocked by the screw fastening.
For flexible attachment of C rails, support rails or cable clamp rails (angle piece). On the sides, to accommodate square sections or tubes (Ø 20 mm). Attachment points with M8 thread.
For AE. As an accessory for additional interior installation, e.g. mounting of cable ties, PS punched rails, top hat rails and C rails (e.g. for a second pair of mounting angles).