OBO Bettermann 7218004 PLM D 0410 FS metal 40x100mm fire protection installation duct

Metal installation duct with intumescent fire protection fabric for fire-safe cable laying. Classified as installation duct EI30, EI60 and EI90 according to EN 13501-2, tested according to EN 1366-5. The duct prevents the spread of fire over the classified period and protects against the effects of a cable fire. Suitable for direct wall and ceiling mounting, mounting below system floors and on support systems. Tool-free joint assembly with joint connector PLM SI. Only approved prefabricated molded parts may be used. The cover is snapped on without tools and enables quick inspection and subsequent installation. Offset cover assembly for continuous potential equalization of the entire duct section is possible.