AFB24-MFT95 N4

$509.54

Each
Damper Actuator, 180 in-lb [20 Nm], Spring return, AC/DC 24 V, 0...135 Ω, NEMA 4X
Fail-safe position
Weight 9.7 lbs
Torque

180 in-lb [20 Nm]

Voltage

AC/DC 24 V

Actuator Type

Spring return

Control type

MFT/Programmable

Brand

Torque motor
180 in-lb [20 Nm]
Power consumption in operation
7.5 W
Power consumption in rest position
3 W
Transformer sizing
10 VA (class 2 power source)
Ambient humidity
5...95% r.H. non-condensing
Housing material
polycarbonate
Electrical Connection
18 GA plenum cable, 3 ft [1 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
MFT/programmable
Control operating range Y note
Honeywell Electronic Series 90, input 0...135 Ω
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
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
Angle Of Rotation Adaption
off (default)
override control
min. position = 0% , mid. Position = 50% , max. position = 100% (Default)
Operating Range
0...135 Ω, Honeywell Electronic Series 90, input 0...135 Ω
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
Electrical accessories
11097-00001|43442-00001|MFT-P|P475|P475-1|PS-100|ZG-R03|ZG-X40|ZK2-GEN|ZTH US|Sensors|diff. pressure
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
AF Series
Noise Level (Fail-Safe)
<62 dB (A) 
Running time (Fail-Safe)
<20 seconds
Running Time (Motor)
default 150 sec, variable 70...220 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
Modulating
Connection
cable
Degree of protection IEC/EN
IP66
Degree of protection NEMA/UL
NEMA 4X
Enclosure
UL Enclosure Type 4X
CAD ThomasNetLink
AFB24-MFT95 N4
Product Features
Torque min. 180 in-lb, Control fixed, 0 to 135 Ω input, or Honeywell series 90 (fixed), Feedback 2 to 10 VDC (DEFAULT).
Electrical Protection
actuators are double insulated
Operation
The AF..24-MFT95 N4 actuator provides 95° of rotation and is provided with a graduated position indicator showing 0° to 95°. The actuator will synchronize the 0° mechanical stop or the physical damper or valve mechanical stop and use this point for its zero position during normal control operations. A unique manual override allows the setting of any actuator position within its 95° of rotation with no power applied.This mechanism can be released physically by the use of a crank supplied with the actuator. When power is applied the manual override is released and the actuator drives toward the fail-safe position. The actuator uses a brushless DC motor which is controlled by an Application Specific Integrated Circuit (ASIC) and a microprocessor. The microprocessor provides the intelligence to the ASIC to provide a constant rotation rate and to know the actuator’s exact position. The ASIC monitors and controls the brushless DC motor’s rotation and provides a Digital Rotation Sensing (DRS) function to prevent damage to the actuator in a stall condition. The position feedback signal is generated without the need for mechanical feedback potentiometers using DRS. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. The AF..24-MFT95 N4 is mounted directly to control shafts up to 1.05” diameter by means of its universal clamp and anti-rotation bracket. The spring return system provides minimum specified torque to the application during a power interruption. The AF..24-MFT95 N4 actuator is shipped at 5° (5° from full fail-safe) to provide automatic compression against damper gaskets for tight shut-off. Installation Note: Use suitable flexible metallic conduit or its equivalent with the conduit fitting. Not suitable for plenum applications.
Application
For fail-safe, modulating control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. A feedback signal is provided for position indication for master-slave applications. Two AF's can be piggybacked for torque loads of up to 360 in-lbs. Minimum 3/4" diameter shaft. OR Maximum of three AF's can be piggybacked for torque loads of up to 432 in-lbs. Minimum 3/4" diameter shaft. Master-Slave wiring for either configuration.
Typical Specification
Spring return control 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 actuator must provide modulating damper control in response to a 0 to 135 ohm control input from a Honeywell Series 90 controller or equivalent. The actuators must be designed so that they may be used for either clockwise or counter clockwise fail-safe operation. Actuators shall use a brushless DC motor controlled by a microprocessor and be protected from overload at all angles of rotation. Run time shall be constant, and independent of torque. A 2 to 10 VDC feedback signal shall be provided for position feedback or master slave applications. 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.
Default/Configuration
Default parameters for 0 to 135Ω input applications of the AF..-MFT95 actuator are assigned during manufacturing. If required, custom versions of the actuator can be ordered, however the control input cannot be modified via MFT PC tool software. The other parameters are variable and can be changed by three means: Factory pre-set or custom configuration, set by the customer using PC-Tool software or the handheld ZTH US.

Installation instructions Download: Installation instructions

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