CU2 - Wide-ranging rectangular fire damper up to 120’

Rectangular fire damper with a fire resistance up to 120 minutes, available in the largest dimensions (including battery assembly up to 3050x1650 mm).


  • Large dimensions
  • Many options and variants
  • Battery assembly tested in rigid wall
  • Model available for use in potentially explosive atmospheres


  • Suitable for built-in installation
  • Minimal distance allowed
  • Suitable for rigid wall, rigid floor and light wall (metal stud gypsum plasterboard wall, gypsum blocks)
  • Sealing with fire resistant stone wool boards allowed, also for asymmetric opening
  • Air tightness in accordance with EN 1751: class B (class C in option )
  • Tested according to EN 1366-2 up to 500 Pa
  • Operating mechanism outside the wall
  • Maintenance-free
  • For indoor use
  • Operating temperature: max. 50°C
  • Intermediate dimensions on request
  • Hygiene-Konformitätsprüfung (


  1. Connection flange PG30
  2. Casing made of refractory material
  3. Damper blade
  4. Operating mechanism
  5. Sealing cold smoke
  6. Blade bumper
  7. Intumescent strip
  8. Transmission with locking (open/closed)
  9. Fusible link
  10. Product identification