NF Series - Spring Return Damper Actuators Belimo

Torque 90 in-lbs [10 Nm]
Damper Area up to 22 sq. ft

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Symbol Belimo Americas
Profile: Manufacturer
Headquarters: US
Establishment date: 1975
Business area: the United States, Canada, Brazil, Latin America and the Caribbean
Capital group: Belimo Holding AG
Warranty: 5 years
Assortment: Damper actuators, Control valves
NFB24 - 1
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NFB24 N4 - 1
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NFB24 N4H - 1
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NFB24-MFT - 1
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NFB24-MFT N4 - 1
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NFB24-MFT N4H - 1
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NFB24-MFT-S - 1
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NFB24-MFT-S N4H - 1
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NFB24-S - 1
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NFB24-S N4 - 1
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NFB24-S N4H - 1
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NFB24-SR - 1
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NFB24-SR N4 - 1
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NFB24-SR N4H - 1
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NFB24-SR-S - 1
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NFB24-SR-S N4H - 1
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NFBUP - 1
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NFBUP N4 - 1
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NFBUP N4H - 1
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NFBUP-S - 1
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NFBUP-S N4 - 1
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NFBUP-S N4H - 1
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NFX24 - 1
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NFX24 N4 - 1
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NFX24-MFT - 1
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NFX24-MFT N4 - 1
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NFX24-MFT-S - 1
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NFX24-MFT-S N4 - 1
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NFX24-S - 1
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NFX24-S N4 - 1
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NFX24-SR - 1
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NFX24-SR N4 - 1
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NFX24-SR-S - 1
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NFX24-SR-S N4 - 1
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NFXUP - 1
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NFXUP N4 - 1
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NFXUP-S - 1
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NFXUP-S N4 - 1
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NFB24-SR-S N4 - 1
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NFB24-MFT-S N4 - 1
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Product descritipion

Spring Return Damper Actuators

  • Comprehensive torque offering (22 in-lbs to 270 in-lbs) over a vast selection of actuators for a wide range of applications.
  • True mechanical spring return, providing reliable fail-safe.
  • Manual override crank eases installation (all EF, AF and NF series only).
  • Low power consumption provides higher efficiency and smaller transformer sizing.
  • Minimum torque guaranteed over entire specified operating range, no loss in performance due to temperature or supply voltage.
  • MFT is available in all spring return actuators, giving the user the flexibility to customize and
    adapt a single actuator to various controllers and applications.

Applications

Belimo actuators are designed for use in a wide variety of HVAC damper applications. With our comprehensive torque range and the ability to direct mount on standard damper shafts or jackshafts, solutions are available for control dampers, air handlers, economizer units, VAV terminal units, fan coil units, fan shutters and unit ventilators.

 

90 in-lbs (NF Series)

The NF spring return actuators provide more features in a smaller housing, about 25% smaller! Low power consumption, increased torque to 90 in-lbs (50% more compared to original NF series) and faster running times (with MFT technology) offer new solutions for control dampers, control valves and retrofit applications.


90 in-lbs [10 Nm]
Approximately 22 square feet
Run time 75…2200 seconds
Spring Return

 

Model # (Description) Power Supply Control Input Torque Auxiliary Switch
NFB24
Damper Actuator,90 in-lb,Spring Return,24V,On/Off
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum  
NFB24 N4
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum  
NFB24 N4H
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,NEMA 4H
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum  
NFB24-MFT
Damper Actuator,90 in-lb,Spring Return,24V,MFT
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum  
NFB24-MFT N4
Damper Actuator,90 in-lb,Spring Return,24V,MFT,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum  
NFB24-MFT N4H
Damper Actuator,90 in-lb,Spring Return,24V,MFT,NEMA 4H
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum  
NFB24-MFT-S
Damper Actuator,90 in-lb,Spring Return,24V,MFT,SW
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-MFT-S N4H
Damper Actuator,90 in-lb,Spring Return,24V,MFT,SW,NEMA 4H
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-S
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,SW
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-S N4
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,SW,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-S N4H
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,SW,NEMA 4H
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-SR
Damper Actuator,90 in-lb,Spring Return,24V,Modulating
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum  
NFB24-SR N4
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum  
NFB24-SR N4H
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,NEMA 4H
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum  
NFB24-SR-S
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,SW
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-SR-S N4H
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,SW,NEMA 4H
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFBUP
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum  
NFBUP N4
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,NEMA 4
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum  
NFBUP N4H
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,NEMA 4H
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum  
NFBUP-S
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,SW
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFBUP-S N4
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,SW,NEMA 4
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFBUP-S N4H
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,SW,NEMA 4H
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFX24
Damper Actuator,90 in-lb,Spring Return,24V,On/Off
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum  
NFX24 N4
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum  
NFX24-MFT
Damper Actuator,90 in-lb,Spring Return,24V,MFT
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum  
NFX24-MFT N4
Damper Actuator,90 in-lb,Spring Return,24V,MFT,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum  
NFX24-MFT-S
Damper Actuator,90 in-lb,Spring Return,24V,MFT,SW
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFX24-MFT-S N4
Damper Actuator,90 in-lb,Spring Return,24V,MFT,SW,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFX24-S
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,SW
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFX24-S N4
Damper Actuator,90 in-lb,Spring Return,24V,On/Off,SW,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFX24-SR
Damper Actuator,90 in-lb,Spring Return,24V,Modulating
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum  
NFX24-SR N4
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum  
NFX24-SR-S
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,SW
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFX24-SR-S N4
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,SW,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFXUP
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum  
NFXUP N4
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,NEMA 4
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum  
NFXUP-S
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,SW
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFXUP-S N4
Damper Actuator,90 in-lb,Spring Return,24 to 240V (UP),On/Off,SW,NEMA 4
24...240 VAC +10% / -20%, 50/60 Hz, 24...125 VDC ±10% On/Off 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-SR-S N4
Damper Actuator,90 in-lb,Spring Return,24V,Modulating,SW,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% 2-10 VDC 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
NFB24-MFT-S N4
Damper Actuator,90 in-lb,Spring Return,24V,MFT,SW,NEMA 4
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% MFT (Configurable) 90 in-lbs [10 Nm] minimum 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 90°
 
 

New Generation AF and NF spring return actuators raises the bar for actuator quality, reliability and technical superiority.

  • Increased torque for more demanding applications: 180 in-lb (AF) and 90 in-lb (NF).
  • Smaller housing for tight spaces and easier handling.
  • Faster motor run times with MFT technology: 70 seconds with new AF and 40 seconds with new NF.
  • Universal power supply (for On/Off models) can accept 24 to 240 VAC offering you one actuator for all voltages.
  • Manual override is now standard on all models for faster installation and easier servicing.

 

A lot more in much less.

New AF and NF spring return actuators provide more features in a smaller housing, about 25% smaller! Low power consumption, increased torque to 90 in-lb (50% more compared to original NF series) and 180 in-lb (35% more compared to the original AF series), and faster running times (with MFT technology) offer new solutions for control dampers, control valves and retrofi t applications.

The New Generation can be integrated with new and some existing Belimo accessories allowing for more options in both mounting and commissioning. A wide selection of clamping options, electrical connections and running times are now available providing you a cost effective solution with the same reliability you have come to experience with Belimo. The New Generation spring return actuators are suitable for use in control dampers up to 45 square feet* (with new AF) and up to 22 square feet* (with the new NF), air handling units, control valve, retrofi t and replacement solutions and tandem mounted applications where higher torque is required.

*Parallel blade without edge seals and 1000 FPM face velocity.

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