The combination for the installation of an electric house-wiring channel (30) in an equipment installation channel comprises a lower part (20) with a bottom (21), two side walls (22), lid closing profiles (23), which bound an open front side, and retaining strips (24,25) on the inside of the bottom. A lid (10-12) is fastened to the lid closing profiles and a movable flap (40) covering the equipment are also provided. A multi-function switch (50) is also provided. There is also a covering trough (60), corresponding to the house-wiring equipment and the channel lower part, as well as bounding the part accessible to the users in the region of the house-wiring equipment and the channel lower part.
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