Fire protection box as insulation system, made of single-part stainless steel housing with intumescent fire protection inlays. Can be used in walls, on raw floors, beneath system floors and as insulation of rising sections in ceilings. Interior can be fully assigned with installations. Closure of the residual openings with PYROSIT® NG fire protection foam, particularly simple for difficult geometries. CE-labelled construction product with general type approval. Fire resistance class EI90 (fire-resistant). Including graphite strip.