Fastening device

In a fastening device for attachment of at least one add-on element to a plurality of vertical frame profiles of a switchgear cabinet, wherein each of the vertical frame profiles has a row of a plurality of evenly distributed fastening retainers, and a fastening block has a plurality of fastening receivers for connecting the at least one add-on element, the improvement comprising:

• the fastening block (20) being at least one of punched and bent from a sheet metal blank and formed as an extruded element;
• at least one hook element (20.7, 20.9) projecting from the fastening block (20), and suspendable in an associated one of the fastening retainers (14) of the frame profile (10);
• the fastening block (20) having two lateral walls (20.3, 20.6) extending at right angles with respect to each other and forming a common vertical inner edge facing an interior of the switchgear cabinet;
• and
• the lateral walls (20.3, 20.6) having the fastening receivers (20.4, 20.5), adjoining one of the two lateral walls (20.3, 20.6) the fastening block (20) having a flange (20.8) supporting the at least one hook element (20.9), and the flange (20.8) having a screw receiver (20.10) into which a screw (20.11) is introduced and screwed into the fastening retainer (13) of the frame profile (10).