Cable protection duct, with snap-on cover and single-row fastening holes in the duct base, the potential equalization of the cover takes place automatically when snapped on, accessories for potential equalization, two joint connectors LST... per joint, must be ordered separately.certified! Dimensions (approx. dimensions) H x W: 40 x 40 mm single row bottom perforation: 4, 2 x 12 and 7 x 15 mm bottom hole spacing grid dimension: 250 mm Delivery length L: 2000 mm Usable cross section: 1182 mm² Material: Steel, strip galvanized according to DIN EN 10346