OBO Bettermann BSKHF-0808 internal height 80 mm fire protection duct E90, 7214840

Fire protection duct for suspended ceiling installation consisting of water and frost-resistant glass fiber lightweight concrete of building material class A1 according to EN 13501 Part 1 for fire-safe installation of fiber optic cables (FOC) in accordance with functional integrity according to DIN 4102 Part 12, classified for E30 and E90. The fire protection duct ensures thermal insulation from the outside to the inside for a proven period of a maximum of 90 minutes and has an ablation coating applied on the inside as additional thermal insulation in the event of a fire. The internal dimensions of 80 x 80 mm ensure that the required minimum bending radii of the fiber optic cables (FOC) are always maintained. The fire protection duct does not restrict the transmission properties of the fiber optic cables (FOC) in the event of a fire for the classified period. The fire protection duct has sealing strips included.