Description
The Belimo NRX24-MFT-T-N4 is a high-performance non-spring return damper actuator engineered for demanding commercial HVAC and building automation applications. Featuring a robust 70 in-lb torque output, this multi-function actuator offers exceptional versatility by supporting multiple control signal types in a single unit — making it an ideal solution for new installations and retrofit projects alike.
Control Signal Flexibility
- 500 Ohm potentiometer input for 4–20 mA analog control
- 1,500 Ohm potentiometer input for PWM (pulse-width modulation) control
- Floating point (tri-state) control
- On/Off control
Power Supply
- 24 Vac / 24 Vdc dual-voltage compatibility
Key Features
- Non-spring return design for positive positioning and energy-efficient operation
- 70 in-lb nominal torque — suitable for medium to large damper applications
- Multi-function technology (MFT) allows field-selectable control modes without changing the actuator
- NEMA 4 (N4) enclosure rating for protection against dust, splashing water, and harsh environments
- Compact, direct-coupled mounting for easy installation on standard damper shafts
- Ideal for VAV systems, air handling units, and commercial building automation systems
Application
The NRX24-MFT-T-N4 is designed for use in commercial HVAC systems where precise damper positioning and control signal flexibility are required. The NEMA 4-rated enclosure makes it suitable for installations in mechanical rooms, rooftop units, and other environments where moisture or dust exposure is a concern. The multi-function technology eliminates the need to stock multiple actuator models, reducing inventory costs and simplifying commissioning.
Specifications
- Brand: Belimo
- SKU: NRX24-MFT-T-N4
- Actuator Type: Non-Spring Return
- Torque: 70 in-lb
- Supply Voltage: 24 Vac / 24 Vdc
- Control Input: 4–20 mA (500 Ohm), PWM (1,500 Ohm), Floating Point, On/Off
- Enclosure Rating: NEMA 4 (N4)
- Control Technology: Multi-Function Technology (MFT)
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