LMB24-MFT Belimo Actuator

Datasheet

Installation Guide

The Belimo LMB24-MFT Damper Actuator,45 in-lb,Non-Spring Return,24V,Modulating

Application

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 from 1/4” up to 5/8” in diameter by means of its universal clamp. Shafts up to 3/4” diameter can be accommodated by an accessory clamp. The default parameters for 2 to 10 VDC applications of the …MFT actuator are assigned during manufacturing. If necessary, custom versions of the actuators can be ordered. The parameters can be changed by two means: pre-set and custom configurations from Belimo or on-site configurations using the Belimo PC-Tool software.

Operation

The actuator is not provided with and does not require any limit switches, but is electronically protected against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement. The LMB(X) series provides 95° of rotation and a visual indicator indicates position of the actuator. When reaching the damper or actuator end position, the actuator automatically stops. The gears can be manually disengaged with a button on the actuator cover. The LMB(X)24-MFT… actuators use a brushless DC motor, which is controlled by an Application Specific Integrated Circuit (ASIC). The ASIC monitors and controls the actuator’s rotation and provides a digital rotation sensing (DRS) function to prevent damage to the actuator in a stall condition. Power consumption is reduced in holding mode

Specifications:

• ..150 s
• Actuator Type
  • Non fail-safe
• Angle of Rotation
  • 95°
• Control Type
  • MFT/Programmable
• Degree of Protection
  • IP54, NEMA 2, UL Enclosure Type 2
• Electrical Connection
  • Cable
• Manual Override
  • External push button
• Power Consumption (Holding)
  • 2 W
• Power Consumption (Running)
  • 5 W
• Running Time (Motor)
  • Default 150 s, variable 30…150 s
• Safety Function
  • NO
• Shaft Diameter
  • 1/4…5/8″ round, centers on 5/8″, 3/4″ clamp available
• Torque
  • 45 in-lb [5 Nm]
• Voltage AC/DC
  • AC/DC 24 V