Fire resistance class of EI 120 (ve i↔o) / E120 (ve i↔o). The dampers are certified for conformity with EN 15650, and tested according to EN 1366-2. The dampers are also classified as per EN 13501-2 and tested according to EN 1366-2. They are designed for use in comfort and 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.