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Description:

For proportional modulation of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications.

The actuator is mounted directly to a damper shaft up to 1.05” in diameter by means of its universal clamp, 1/2” self centered default. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.

The actuator operates in response to a 2 to 10 VDC, or with the addition of a 500 Ω resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication or master-slave applications.

Specifications:

Voltage: AC/DC AC/DC 24 V
Power Consumption (Running): 2.5 W
Power consumption (Holding): 1.2 W
Power Consumption for Wire Sizing: 5 VA
Torque: 45 in-lb [5 Nm]
Control Type: MFT/Programmable
Direction of Motion Motor: selectable with switch 0/1
Manual Override External: Push Button
Angle of Rotation: 95
Running Time (Motor): 150 s / 90°
Running Time Range (Motor): 30...150 s
Protection Category: IP54
Degree of Protection NEMA: NEMA 2
Enclosure Type: UL Enclosure Type 2
Ambient Temperature: -22...122°F [-30...50°C]

Resources:

BELIMO LMX24-MFT Actuator Technical Literature