Belimo LMX120-SR Actuator

Belimo LMX120-SR Rotary Actuator | 45 in-lb | 2–10 VDC | 120–240 VAC

The Belimo LMX120-SR Actuator is a high-performance rotary HVAC actuator designed for precise control of dampers and air-handling components in commercial and industrial applications. Delivering 45 in-lb (5 Nm) of torque, this actuator supports modulating control via DC 2–10 VDC and operates on a wide 100–240 VAC power supply, making it highly versatile for modern building automation systems.

The LMX120-SR features selectable direction of rotation, an external manual override push button, and a durable NEMA 2 / UL Type 2 enclosure for dependable operation. With a 95° rotation range and adjustable running times, this actuator provides smooth, accurate positioning while maintaining low power consumption.

Key Features:

• 45 in-lb (5 Nm) torque for reliable damper control

• Modulating control: DC 2–10 VDC

• Wide voltage range: AC 100–240 VAC

• Selectable rotation direction via 0/1 switch

• External manual override push button

• 95° angle of rotation

• Adjustable running time options

• Energy-efficient operation with low holding power

• NEMA 2 / UL Type 2 enclosure for indoor applications

Technical Specifications:

• Brand: Belimo

• Model: LMX120-SR

• Actuator Type: Rotary

• Control Signal: DC 2–10 VDC

• Torque: 45 in-lb [5 Nm]

• Power Consumption (Running): 2.5 W

• Power Consumption (Holding): 1 W

• Power Consumption (Wire Sizing): 4.5 VA

• Angle of Rotation: 95°

• Running Time: 95 seconds / 90°

• Running Time Range: 35, 45, 60, 150 seconds

• Enclosure Rating: NEMA 2 / UL Type 2

• Ambient Temperature: -22°F to 122°F (-30°C to 50°C)

• Condition: Brand New

Applications:

• HVAC air dampers

• VAV boxes

• Air handling units

• Building automation systems

The Belimo LMX120-SR Rotary Actuator delivers dependable modulation, energy efficiency, and long-lasting performance—making it a trusted choice for precise HVAC damper control.