LMB24-SR Belimo 24VAC/DC Modulating Damper Actuator 5Nm 2-10V Non-Spring Return

Description:

• Genuine Belimo modulating damper actuator for commercial HVAC and building automation applications
• Provides 5 Nm (45 in-lb) of torque for controlling air dampers up to approximately 11 sq. ft. (1 m²), depending on damper design
• Operates on 24 VAC/DC power with 2–10 VDC modulating control input
• Supports 4–20 mA control with an external 500 Ω resistor
• Includes 2–10 VDC position feedback for accurate damper position monitoring
• Non-spring return design for proportional HVAC damper control
• Electronic overload protection eliminates the need for end switches
• Manual override push button allows easy commissioning and maintenance
• Adjustable mechanical stop with 95° maximum rotation
• Suitable for air handling units, rooftop units, VAV systems, ventilation equipment, and building automation systems
• Maintenance-free design with quiet operation and long service life

Specifications:

• Manufacturer Name: Belimo
• Part Number (MPN): LMB24-SR
• Product Type: Modulating Damper Actuator
• Actuator Type: Non-Spring Return
• Supply Voltage: 24 VAC/DC
• Voltage Range:
  • 19.2–28.8 VAC
  • 21.6–28.8 VDC
• Torque: 5 Nm (45 in-lb)
• Control Signal: 2–10 VDC
• Optional Control: 4–20 mA (with 500 Ω resistor)
• Position Feedback: 2–10 VDC
• Rotation Angle: 95° Maximum
• Running Time: 95 seconds / 90°
• Power Consumption:
  • Operating: 1.5 W
  • Holding: 0.4 W
• Transformer Sizing: 3 VA
• Noise Level: 35 dB(A)
• Manual Override: External Push Button
• Degree of Protection:
  • NEMA 2
  • IP54
• Ambient Temperature: -30°C to +50°C (-22°F to +122°F)
• Ambient Humidity: 95% RH Max., Non-Condensing
• Certifications:
  • cULus
  • CE
  • UL 2043
  • ISO 9001
• Applications:
  • HVAC Systems
  • Air Handling Units (AHUs)
  • VAV Systems
  • Building Automation
  • Ventilation Dampers
  • Commercial HVAC Controls

Dimensions:

• Compact direct-coupled actuator designed for mounting on 1/4 in. to 5/8 in. round shafts (up to 3/4 in. with optional clamp).

Weight:

• Approximate Weight: 0.55 kg (1.2 lb).