The BELIMO NFX24 is a damper actuator with 90 in-lb torque, spring return, and operates on 24V with on/off control. It provides 95° of rotation and includes a graduated position indicator. A manual override allows position setting without power. The actuator uses a brushless DC motor controlled by an ASIC and microprocessor.
Spring return actuator with 90 in-lb torque
Operates on 24V AC/DC power
Features on/off control type
Product Highlights
This damper actuator is designed for reliable performance with its spring return system and precise control capabilities.
Product Information
Standard Information
Brand: BELIMO
Manufacturer Part Number: NFX24
Technical Specifications
Actuator Type
Spring return
Angle of Rotation
95
Control Type
On/Off
Degree of Protection
IP54
Electrical Connection
cable
Power Consumption (Holding)
2.5 W
Power Consumption (Running)
6 W
Running Time (Fail-safe)
<20 s
Running Time (Motor)
default 150 sec, variable 40...150 sec
Torque
90 in-lb [10 Nm]
Voltage AC/DC
AC/DC 24 V
Torque motor
90 in-lb [10 Nm]
Power consumption in operation
6.5 W
Power consumption in rest position
3 W
Transformer sizing
9 VA (class 2 power source)
Ambient humidity
5...95% r.H. non-condensing
Housing material
polycarbonate
Manual override
5 mm hex crank (3/16" Allen), supplied
Position indication
dial
Ambient temperature
-22...122 F [-30...50 C]
Non-operating temperature
-40...176 F [-40...80 C]
Control operating range Y note
4...20 mA w/ ZG-R01 (500 , 1/4 W resistor)
Options positioning signal
variable (VDC, PWM, on/off, floating point)
Operating range Y variable
Start point DC 0.5...30 V|End point DC 2.5...32 V
Position Feedback
DC 2...10 V, Max. 0.5 mA, VDC variable
direction of rotation motor
reversible with built-in switch
Overload Protection
electronic throughout 0 to 95 rotation
Input Impedance
100 k for DC 2...10 V (0.1 mA), 500 for 4...20 mA, 1500 for PWM, On/Off and Floating point
Degree of protection IEC/EN
IP66
Degree of protection NEMA/UL
NEMA 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%
Angle Of Rotation Adaption
off (default)
override control
min. position = 0% , mid. Position = 50% , max. position = 100% (Default)
Operating Range
DC 2...10 V (default), 4...20 mA w/ ZG-R01 (500 , 1/4 W resistor), variable (VDC, PWM, on/off, floating point)
Emergency control function
Spring Return
Product family
Damper Actuator
direction of rotation spring-return
reversible with cw/ccw mounting
Noise level, motor
40 dB (A) @ 150 sec, run time dependent
Shaft Diameter
1/2" to 1.05" round, centers on 3/4" with insert, 1.05" without insert