Further information for OBO Bettermann OBO fire protection box three sides intumescent 7204158 - PMB 130-3 A2
Fire protection box as a sealing system made of a one-piece stainless steel housing with intumescent fire protection inserts. Can be used in walls on the subfloor, beneath system floors and as a sealing of risers in ceilings. The interior can be completely covered with installations. For indoor use. Sealing of the remaining openings with PYROSIT® NG fire protection foam, particularly easy for difficult geometries. CE-marked construction product with general type approval. Fire resistance class EI90 (fire-resistant). Includes graphite strips.