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EWC 4 RSD - Single Blade, Round Spring Return Damper, 4", With Shutoff Seal

Item: 4 RSD
This product is no longer available for purchase.
Comparable Product:


Model RSD is a round single blade damper constructed from heavy (24) gauge galvanized steel. It has a spring return motor actuator. The 24 volt motor actuator is direct coupled to the drive shaft. It is power closed/spring open (standard). The damper is field reversible from power closed/spring open to power open/spring closed.

The RSD includes a travel limiter to prevent full closure, if so desired. It does not have LEDs or an end switch. The RSD has a double layered blade design with an integrated cellular foam gasket to provide a seal when the damper is in the closed position. The RSD also has a Travel Limiter to prevent the damper from closing 100% if your application requires.
  • Available sizes are 4" - 6" - 7" - 8" - 9" - 10" - 12" - 14" - 16"-18"-20".
  • It can also be purchased as a URD-LF24 (24 volt, 35 in/lbs., spring return) or a URD-LF120 (120 volt, 35 in/lbs., spring return).


NameEWC 4 RSD - Single Blade, Round Spring Return Damper, 4", With Shutoff Seal
BrandEWC Controls
Gemaire Item Number4 RSD
Manufacturer Product Number4 RSD
SKU - PIM Number1369225533889
ERP Number206844
Unit of MeasureEA
Weight4.0 Pounds (Lb)
Length12.0 Inches (In)
Width12.0 Inches (In)
Height8.0 Inches (In)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginUSA
Voltage24 VAC
Power Method24 Volt
Damper TypeZone Damper
Heat Pump CompatibleYes
Emergency Heat SwitchNo
Individual Fan ControlNo
MountingCrimped edge
Network ZoningYes
TypeMotorized 2-wire spring return
Warranty Offered5 Year
UL ListedNo
UL RecognizedNo
GEM - Case Quantity


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