4 Nm Damper Actuators – RA4 Series

• Torque: 4 Nm, suitable for dampers up to 1.0 m².
• Control Signals:
  • On/off (two-position) or 3-point floating (RA4 24D, RA4 220D).
  • Analog control: 0-10 Vdc (RA4 24V) or 4-20 mA (RA4 24C).
• Auxiliary Switches: Available on digital models (e.g., RA4 24D S2) and analog models (e.g., RA4 24V S2, RA4 24C S2).
• Feedback Signal: Standard on all models with analog control signals.
• Position Indicator: Integrated for visual monitoring of damper position.
• Manual Override: Push-button for manual control.
• Direction of Rotation: Changeable via a switch on the PCB.
• Running Time: 35 seconds for all RA4-series models.

RA4 24D

• Power Supply: 24 Vac/dc.
• Control Signal: On/off or 3-point.

RA4 220D

• Power Supply: 220 Vac.
• Control Signal: On/off or 3-point.

RA4 24D S2

• Power Supply: 24 Vac/dc.
• Control Signal: On/off or 3-point.
• Auxiliary Switches: Included.

RA4 220D S2

• Power Supply: 220 Vac.
• Control Signal: On/off or 3-point.
• Auxiliary Switches: Included.

RA4 24V

• Power Supply: 24 Vac/dc.
• Control Signal: 0-10 Vdc.
• Feedback Signal: 0-10 Vdc.

RA4 24C

• Power Supply: 24 Vac/dc.
• Control Signal: 4-20 mA.
• Feedback Signal: 0-10 Vdc.

RA4 24V S2

• Power Supply: 24 Vac/dc.
• Control Signal: 0-10 Vdc.
• Feedback Signal: 0-10 Vdc.
• Auxiliary Switches: Included.

RA4 24C S2

• Power Supply: 24 Vac/dc.
• Control Signal: 4-20 mA.
• Feedback Signal: 0-10 Vdc.
• Auxiliary Switches: Included.

• Motorized control of dampers in ventilation systems.
• Ideal for air handlers, economizer units, VAV terminal units, fan coil units, and unit ventilators.
• Suitable for use in BAS, BMS, and HVAC environments.