NMB24-MFT Belimo Actuator

The Belimo NMB24-MFT Damper Actuator is a versatile, non-spring return actuator designed for precise airflow control in commercial HVAC systems. With 90 in-lb (10 Nm) torque and Belimo’s advanced Multi-Function Technology (MFT), this actuator provides flexible control, reliable performance, and seamless integration into building automation systems.

Apex Controls supplies genuine Belimo actuators with fast U.S. shipping for contractors, OEMs, and facility professionals.

Overview

The NMB24-MFT is part of Belimo’s trusted NMB series, engineered for modulating damper control applications where fail-safe operation is not required. It operates on 24V AC/DC power and supports 2–10V modulating control, making it ideal for modern BAS systems.

Its direct-coupled design simplifies installation while delivering consistent, maintenance-free performance in demanding HVAC environments.

Key Features

• 90 in-lb (10 Nm) torque for medium-sized dampers
• Non-spring return (non fail-safe) operation
• 24V AC/DC power supply
• MFT (Multi-Function Technology) for flexible configuration
• Supports 2–10V modulating control signals
• Direct-coupled mounting (no linkage required)
• Compact, durable design for long service life

Belimo’s MFT platform allows one actuator to be configured for multiple control types, reducing inventory and simplifying replacements in the field.

Applications

The Belimo NMB24-MFT is widely used in:

• Air handling units (AHUs)
• Rooftop units (RTUs)
• VAV systems
• Zone dampers
• Building automation systems (BAS)

It is ideal for modulating airflow control where fail-safe positioning is not required.

Specifications

• 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)
  • 3 W
• Power Consumption (Running)
  • 5 W
• Running Time (Motor)
  • Default 150 s, variable 45…170 s
• Running Time range (Motor)
  • ..170 s
• Safety Function
  • NO
• Shaft Diameter
  • 1/2…1.05″ round, centers on 1/2″ and 3/4″ with insert, 1.05″ without insert
• Torque
  • 90 in-lb [10 Nm]
• Voltage AC/DC
  • AC/DC 24 V