CU-LT - Optimised rectangular fire damper up to 120’

Optimised rectangular fire damper with a fire resistance up to 120 minutes, available in small dimensions (starting from 100 mm height). A minimal pressure loss is guaranteed thanks to the thin blade and the transmission located outside the tunnel.


  • Easy to install
  • Optimal free air passage and minimal pressure loss
  • Optimal acoustic performance
  • Higher net building volume through compact size
  • Air-tightness class C according to EN1751


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


  1. Casing in galvanised steel
  2. Damper blade
  3. Operating mechanism
  4. Sealing cold smoke
  5. Intumescent strip
  6. Positioning plate
  7. Connection flange PG20
  8. Product identification