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Multi-Blade Dampers (MB Series) 24 Volt

Multi-Blade Damper (MB Series)

  • Durable Extruded Aluminum Construction
    Frame and blades of extruded aluminum combine minimum weight with maximum strength for a damper of unsurpassed durability.
  • High-Torque Motor
    Motor will work with all 24-volt thermostats. High-torque means reliable, trouble-free service for many years.
  • Low-Leakage, Parallel-Blade Design
    Insures smooth operation and efficient sealing for maximum control of air flow.
  • Quick Installation and Wiring
    Damper attaches to the duct by use of a new clip. No screws or screwdriver are required. Easy wiring.
  • Neoprene Gasketing
    Minimizes leakage and reduces metal-to-metal rattle.
  • Three Year Limited Warranty
    Damper motor guaranteed for three years after installation.

To use the MB Damper Selection chart below:

  1. For the MB Damper, consider the motor on the width side.
  2. Determine the Dimensions, height and width you need, and find the appropriate intersection in the following chart.
  3. This intersection gives you the item number for ordering Multi-Blade Dampers.
  4. When ordering Multi-Blade Dampers, give item number, description, height and width. ie. # 37171 MB 10" x 20", or # 37126 MB 20" x 10".

The PT-40 Transformer item #35054 powers up to 4 dampers. The PT-40 is recommended to supply these dampers.

MB Damper Size Chart

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