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Broan-NuTone® Premium Radiation Damper for LoPro Ventilation Fans

The Broan-NuTone® LPRD Radiation Damper prevents the rapid spread of fire to other areas of a home during a fire. Many codes require that exhaust fans installed in multi-family homes, with fire-rated ceilings, must be protected by radiation dampers. When the air temperature passing through the damper exceeds 165°F, the fusible link melts, triggering the thermal fabric to automatically close across the damper. Airflow is interrupted by a flame and heat barrier, preventing the rapid spread of fire to other areas of the home.




  • For use in 1, 2 and 3 hour rated floor-ceiling and roof-ceiling constructions
  • Galvanized steel frame
  • High temperature, non-asbestos, reinforced fiber thermal fabric
  • Stainless steel closure springs
  • 165°F fusible link
  • Separate outer frame allows complete fan and damper serviceability without disturbing the surrounding ceiling material
  • Meets or exceeds NFPA-90A
  • ETL Classified (UL-555C)
  • Compatible with the following fan and fan/light models:   BROAN  LP510R, LP510RS, LP510RSL
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