Wiring duct made of PVC in accordance with DIN EN 50085-2-3 for installation in control cabinets, lower part with slotted side walls and with single-row bottom perforation in accordance with DIN EN 50085-2-3, overlapping upper part with a continuous labeling edge. The side bars can be broken out without tools, with the help of notching pliers the side bars can be broken out to the bottom. The wiring duct is VDE-tested and CSA-certified.