TFB24-MFT Belimo Damper Actuator

The Belimo TFB24-MFT Damper Actuator,22 in-lb,Spring Return,24V,MFT

The Belimo TFB24-MFT Damper Actuator is a compact, spring-return damper actuator designed for precise airflow control in commercial HVAC systems. Featuring Belimo’s Multi-Function Technology (MFT), this actuator offers flexible control signals and reliable fail-safe operation, making it a top choice for engineers, contractors, and building automation professionals.

Apex Controls supplies genuine Belimo actuators with fast U.S. shipping for critical HVAC applications.

Overview

The TFB24-MFT is engineered for small damper applications requiring 22 in-lb (2.5 Nm) torque and dependable spring-return functionality. It operates on 24V AC/DC power and supports modulating control (2–10V), allowing precise positioning within building automation systems.

Designed for direct-coupled mounting, this actuator simplifies installation while delivering consistent, maintenance-free performance.

Key Features

• 22 in-lb (2.5 Nm) torque for small dampers
• Spring return (fail-safe) for reliable positioning on power loss
• 24V AC/DC power supply
• MFT (Multi-Function Technology) for flexible control
• Supports 2–10V modulating control signals
• Direct-coupled design for easy installation
• Compact footprint for tight spaces
• Long service life with maintenance-free operation

Belimo’s MFT platform allows the actuator to be configured for multiple signal types and operating modes, reducing SKU complexity and simplifying field replacements.

Applications

The Belimo TFB24-MFT is commonly used in:

• VAV boxes
• Air handling units (AHUs)
• Rooftop units (RTUs)
• Zone control dampers
• Commercial HVAC retrofits and new construction

Its fail-safe spring return ensures dampers move to a safe position during power loss—critical for ventilation and safety compliance.

Technical Specifications