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 smoke is prevented. No further action against the spread of smoke is required.

RABR is supplied ready for external insulation, complete with factory-fitted, maintenance-free, 24 V electric safety actuator with thermal sensor featuring built-in signal contacts to indicate damper position. Slip joint or flange connection.