
AHX120-3-300 Technical Data Sheet
On/Off, Floating Point, Non-Spring Return, Linear, AC 100...240 V
Technical Data
Power Supply 100...240 VAC, -15% / +10%, 50/60 Hz
Power consumption in operation 2.5 W
Power consumption in rest
0.5 W
position
Transformer sizing 4.5 VA (class 2 power source)
Electrical Connection 18 GA appliance cables, 3 ft [1 m], 10
ft [3 m] or 16ft [5 m], with 1/2” conduit
connector
Overload Protection electronic throughout full stroke
Input Impedance 600 Ω
Stroke 12” [300 mm]
Actuating force motor 100 lbf [450 N]
Direction of motion motor reversible with switch
Manual override external push button
Running Time (Motor) 150 s 100 mm
Ambient humidity max. 95% r.H., non-condensing
Ambient temperature -22...122°F [-30...50°C]
Storage temperature -40...176°F [-40...80°C]
Degree of Protection IP54, NEMA 2, UL Enclosure Type 2
Housing material UL94-5VA
Agency Listing cULus acc. to UL60730-1A/-2-14, CAN/CSA
E60730-1:02, CE acc. to 2014/30/EU and
2014/35/EU
Noise level, motor 35 dB(A)
Servicing maintenance-free
Quality Standard ISO 9001
Weight 2.9 lb [1.3 kg]
†Rated Impulse Voltage 800V, Type of Action 1, Control Pollution Degree 2.
1561
Linear force min. 101 lbf for control of damper surfaces up to 30 sq.
ft.
Application
For on/off and floating point control of dampers in HVAC systems. Actuator
sizing should be done in accordance with the damper manufacturer’s
specifications.
Operation
The actuator is not provided with and does not require any limit switches, but is
electronically protected against overload. The anti-rotation strap supplied with
the actuator will prevent lateral movement.
The AHX... series provides 4, 8, or 12 inches of linear stroke. The stroke of the
gear rack can be adjusted on both sides in increments of 0.8 in [20 mm] by
means of the mechanical end stops.
When reaching the damper or actuator end position, the actuator automatically
stops.
The gears can be manually disengaged with a button on the actuator cover.
The AHX120-3… actuators use a sensorless brushless DC motor, which is
controlled by an Application Specific Integrated Circuit (ASIC). The ASIC
monitors and controls the actuator’s rotation and provides a digital rotation
sensing (DRS) function to prevent damage to the actuator in a stall condition.
Power consumption is reduced in holding mode.
Dimensions (Inches[mm])
1.4" [35.6]
[17.4]
.54"
[13.7]
3.19" [81]
Stroke
4" [100]
8" [200]
12" [300]
0.7"
B
A
9.2" [233.5]
13.1" [333.5]
17.1" [433.5]
7" [178]
A
B
8" [294.7]
12" [394.7]
16" [494.7]
2.4" [60.5]
3.10" [79]
Date created, 02/10/2020 - Subject to change. © Belimo Aircontrols (USA), Inc.
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Accessories
KG10A Ball joint
KG8 Ball joint
SH8 Push rod for KG6 & KG8 ball joints (36” L, 5/16” diameter).
Z-DS1 Rotary support
Z-KSC 3/8”-16 shaft clevis for AHK/AH.
ZG-119 Bracket for AHK/AH/LH linear actuators.
TF-CC US Cable conduit connector, 1/2”.
Typical Specification
Floating point, on/off control damper actuators shall be electronic type, with
integrated linear stroking arm. Actuators shall have brushless DC motor
technology and be protected from overload at all positions of linear stroke.
Actuators shall have reversing switch and manual override on the cover.
Run time shall be constant and independent of torque. Actuators shall be
cUL listed, have a 5-year warranty, and be manufactured under ISO 9001
International Quality Control Standards. Actuators shall be as manufactured
by Belimo.
Wiring Diagrams
Actuators with appliance cables are numbered.
A
Provide overload protection and disconnect as required.
Actuators may be connected in parallel if not mechanically linked. Power
consumption and input impedance must be observed.
AHX120-3-300 Technical Data Sheet
On/Off, Floating Point, Non-Spring Return, Linear, AC 100...240 V
A
1
11
Line Wht
olts Blk
N
L
On/Off 100 to 240 VAC
Wht N
olts
Blk L
Floating Point 100 to 240 VAC
Blu (1) Common
Brn (2) Load
Wht (3) Load
A
1
Blu (1) Common
Brn (2) Load
Wht (3) Load
11
Date created, 02/10/2020 - Subject to change. © Belimo Aircontrols (USA), Inc.
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN