LM24-SR-2.0 Belimo 24V Modulating Damper Actuator 4 Nm 2-10VDC HVAC

Description:

• Genuine Belimo non-spring return modulating damper actuator for HVAC and building automation systems
• Delivers 4 Nm (35 lb-in) torque for proportional control of air dampers up to approximately 0.8 m² (8.6 ft²)
• Operates on AC/DC 24V power with 2–10 VDC or 4–20 mA modulating control signal
• Provides 2–10 VDC position feedback for monitoring actuator position and master/slave applications
• Direct-coupled mounting eliminates the need for linkages, reducing installation time
• Electronic overload protection eliminates the need for end switches and automatically stops at end positions
• Manual override button allows easy positioning during installation and servicing
• Ideal for HVAC systems, air handling units (AHUs), VAV systems, ventilation dampers, and commercial building automation
• Maintenance-free design ensures reliable long-term operation in demanding environments.

Specifications:

• Manufacturer Name: Belimo
• Part Number (MPN): LM24-SR-2.0
• Product Type: Modulating Damper Actuator
• Actuator Type: Non-Spring Return
• Supply Voltage: AC/DC 24V
• Nominal Voltage Range:
  • AC 19.2–28.8V
  • DC 21.6–28.8V
• Torque: 4 Nm (35 lb-in)
• Control Signal:
  • 2–10 VDC
  • 4–20 mA (using 500 Ω resistor)
• Position Feedback: 2–10 VDC
• Running Time: 80–110 seconds (90° rotation)
• Maximum Rotation Angle: 95°
• Direction of Rotation: Selectable (CW/CCW)
• Manual Override: Push Button
• Power Consumption: 2 W
• Power Rating for Wire Sizing: 4 VA
• Degree of Protection: IP54
• Ambient Operating Temperature: -30°C to +50°C
• Storage Temperature: -40°C to +80°C
• Connecting Cable: 1 m (4 × 0.75 mm²)
• Maintenance: Maintenance-Free
• Applications:
  • HVAC Systems
  • Air Handling Units (AHU)
  • Variable Air Volume (VAV)
  • Ventilation Dampers
  • Building Automation Systems
  • Commercial HVAC Controls

Dimensions:

• Height: 89 mm (3.50 in)
• Width: 66.2 mm (2.61 in)
• Depth: 59 mm (2.32 in)

Weight:

• Approximate Weight: 0.62 kg (1.37 lb).