Description
The Belimo LMB24-MFT is a versatile, multi-function-technology (MFT) rotary damper actuator engineered for demanding commercial HVAC and building automation applications. Delivering a robust 45 in-lb of torque, this actuator is built to reliably drive a wide range of damper sizes and configurations while supporting multiple control signal types from a single unit — reducing the need for separate SKUs across different system designs.
Control Signal Flexibility
The LMB24-MFT’s multi-function technology platform accepts a broad range of input signals, making it compatible with virtually any BAS or control panel:
- 4–20 mA analog input (500 Ohm impedance)
- PWM (Pulse Width Modulation) input (1500 Ohm impedance)
- Floating point (tri-state) control
- On/Off control
- 2–10 Vdc analog input
Electrical Specifications
- Supply voltage: 24 Vac / 24 Vdc
- Control input: 4–20 mA (500 Ω), PWM (1500 Ω), floating point, On/Off, 2–10 Vdc
- Actuator type: Rotary
- Torque output: 45 in-lb
Key Features & Benefits
- Multi-function technology (MFT) — one actuator supports multiple control signal types
- Rotary design for direct damper shaft mounting
- 45 in-lb torque output handles medium-to-large damper applications
- Compatible with 24 Vac and 24 Vdc power supplies for flexible installation
- Supports both analog (4–20 mA, 2–10 Vdc) and digital (PWM, floating point, On/Off) control modes
- Simplifies inventory management — one model covers multiple control configurations
- Ideal for VAV systems, air handling units, and building automation integration
Applications
- Variable air volume (VAV) damper control
- Air handling unit (AHU) dampers
- Outside air, return air, and exhaust air dampers
- Building automation and energy management systems
- Commercial HVAC zoning and ventilation control
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