Fire resistance class of EI60(ve i↔o)S, E120(ve i↔o)S. The dampers are certified for conformity with EN 15650, classified pursuant to EN 13501-3, and tested according to EN 1366-2. They are designed for use in general ventilation installations. Optional EX making of dampers (as per ATEX directive) for applications in explosion hazard zones.

Fire resistance class of EI120(Vew i↔o) 1000 C10000 AAmulti. The dampers are certified for conformity with EN 12101-8, classified pursuant to EN 13501-4, and tested according to EN 1366-10. They are designed for use in general ventilation installations.

Fire resistance class of EI120(ve i↔o)S, EI90(ho i↔o)S. The dampers are certified for conformity with EN 15650, E120(ho i↔o)S, classified pursuant to EN 13501-3, and tested according to EN 1366-2. They are designed for use in general ventilation installations. Optional EX making of dampers (as per ATEX directive) for applications in explosion hazard zones.

Fire resistance class of EI120(ved i↔o)S1000C10000AAmulti. The dampers are certified for conformity with EN 12101-8, classified pursuant to EN 13501-4, and tested according to EN 1366-10. They are designed for use in general ventilation installations.