- Torque motor
- 90 in-lb [10 Nm]
- Power consumption in operation
- 6 W
- Power consumption in rest position
- 2.5 W
- Transformer sizing
- 8.5 VA (class 2 power source)
- Ambient humidity
- 5...95% r.H. non-condensing
- Housing material
- polycarbonate
- Electrical Connection
- 18 GA appliance cables, 3 ft [1 m], 10 ft [3 m] or 16ft [5 m], with 1/2" conduit connector
- Manual override
- 5 mm hex crank (3/16" Allen), supplied
- Angle of rotation
- 95°, adjustable with mechanical end stop, 35...95°
- Position indication
- dial
- Ambient temperature
- -22...122°F [-30...50°C]
- Non-operating temperature
- -40...176°F [-40...80°C]
- Control
- On/Off
- direction of rotation motor
- reversible with CW/CCW mounting
- Overload Protection
- electronic throughout 0° to 95° rotation
- Degree of Protection
- IP66, NEMA 4X, UL Enclosure Type 4X
- Nominal voltage
- AC/DC 24 V
- Nominal voltage frequency
- 50/60 Hz
- Power Supply
- 24 VAC, ±20%, 50/60 Hz, 24 VDC, -10% / +20%
- Power supply tolerance AC
- ±20%
- Power supply tolerance DC
- -10% / +20%
- Agency Listing
- cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EC
- Emergency control function
- Spring Return
- Product family
- Damper Actuator
- direction of rotation spring-return
- reversible with cw/ccw mounting
- Noise level, motor
- ≤50 dB (A)
- Shaft Diameter
- 1/2" to 1.05" round, centers on 3/4" with insert, 1.05" without insert
- Electrical accessories
- 11097-00001|43442-00001|P475|P475-1|PS-100|ZG-X40
- Mechanical accessories
- AF-P|KG10A|KH10|SH10|TOOL-06|TOOL-07|ZG-DC1|ZG-DC2|ZG-JSA-1|ZG-JSA-2|ZG-JSA-3
- Family Series
- NF Series
- Noise Level (Fail-Safe)
- <62 dB (A)
- Running time (Fail-Safe)
- 20 seconds
- Running Time (Motor)
- <75 sec
- Running Time (Fail-Safe)
- <20 sec @ -4...122°F [-20...50°C], <60 sec @ -22°F [-30°C]
- Fail-Safe function
- Spring return
- Control type
- On/Off
- Connection
- cable
- Degree of protection IEC/EN
- IP66
- Degree of protection NEMA/UL
- NEMA 4X
- Enclosure
- UL Enclosure Type 4X
- CAD ThomasNetLink
- NFX24 N4
- Product Features
- Torque min. 90 in-lb, for control of air dampers.
- Electrical Protection
- actuators are double insulated
- Operation
- The NF..24 N4 series actuators provide true spring return operation for reliable fail-safe application and positive close off on air tight dampers. The spring return system provides constant torque to the damper with, and without, power applied to the actuator. The NF..24 N4 series provides 95° of rotation and is provided with a graduated position indicator showing 0° to 95°. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. The NF..24 N4 actuator is shipped at 5° (5° from full fail-safe) to provide automatic compression against damper gaskets for tight shut-off.
- Application
- For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer's specifications. Control is On/Off from an auxiliary contact or a manual switch. The actuator is mounted directly to a damper shaft up to 1.05" in diameter by means of its universal clamp.
- Typical Specification
- On/Off spring return damper actuators shall be direct coupled type which require no crank arm and linkage and be capable of direct mounting to a jackshaft up to a 1.05” diameter. The actuators must be designed so that they may be used for either clockwise or counter clockwise fail-safe operation. Actuators shall be protected from overload at all angles of rotation. If required, two SPDT auxiliary switch shall be provided having the capability of one being adjustable. Actuators with auxiliary switches must be constructed to meet the requirements for Double Insulation so an electrical ground is not required to meet agency listings. Actuators shall be cULus listed and have a 5 year warranty, and be manufactured under ISO 9001 International Quality Control Standards. Actuators shall be as manufactured by Belimo.
- CP65 Warning
- ⚠ WARNING: For Belimo Products sold in California, these Products do or may contain chemicals which are known to the State of California to cause cancer and or birth defects or other reproductive harms. For more information see www.p65warnings.ca.gov.
Datasheet Download: Datasheet
Installation instructions Download: Installation instructions
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