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Fire/Smoke Damper, Stainless Steel, 1½ Hour Rating, UL555/UL555S Classified, Class III, Vee-Groove Blade, w/Optional Sleeve


  • Triple V-Groove Blades.
  • Rated to 2,000 fpm and 4"w.g.
  • UL approval for dual directional airflow.
  • Failsafe design, which enables the damper to automatically assume the desired position when fire or smoke (if smoke detector is present) interrupts operational power.
  • Controlled closure in not less than 3 seconds and no more than 15 seconds to prevent HVAC and duct damage.
  • Automatic remote reset after test, smoke detection or power failure conditions.
  • Stainless steel construction.


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Additional Info

  • Blade Type: Vee-Groove
  • Rating: 1-1/2 Hours
  • AMCA Certified: Yes
  • Modulating: No
  • Grille Access: No
  • Explosion Proof: No
  • Leakage Class: Class III

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