Rectangular regulating fire damper RABRR

Bevent Rasch has developed a fire damper, fire class E60S /E90S /E120S with regulating actuator. This means it is possible to regulate the air flow from 0-100% with a control signal 2-10V, use it as an adjustment damper or boosting damper while providing complete protection against the spread of combustion gases.

Quick facts

  • Fire resistance class E60S / E90S / E120S
  • Sizes from 200 x 200 mm to 1500 x 1500 mm
  • Prefitted safety actuator 24V
  • Slip joint connection or Flange connection
  • Installation in duct or against wall
  • Easy flow regulation
  • Available in MagiCAD
  • CE-marked building product in accordance with 15650:2010


Damper in combination with walls or joist structures for fire separation of HVAC systems in buildings. In accordance with the harmonised European standard EN 15650:2010. In designs in accordance with the associated documents and installation instructions and when the damper is used in combination with smoke detectors and monitoring system MRB or the like, the spread of combustion gases is prevented. No further action against the spread of smoke is required.


The regulating fire damper is supplied prepared for external insulation. The control signal can come from e.g. room controllers, air quality sensors, or other devices that give a 2-10V DC output signal. The actuator provides an actual value signal of 2-10V DC depending on the damper position. In the event of a power failure, the damper closes with the actuator’s spring.




Damper module


Central Unit


Control unit for regulating dampers


Room detector


Duct detector


Junction box


Wall duct


Sleeve coupling