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

Explosion protected fire damper for use in zone 1,2 (gas) and zone 21,22 (combustible dust).


  • ATEX certificate TÜV 14 ATEX 7540 X


  • 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. Explosion proof mechanism
  2. Equipotential connection