Product Overview

AMCX24-MFT
Proportional Control, Non-Spring Return, Direct Coupled, 24V, Multi-Function Technology
®
Technical Data AMCX24-MFT
Power Supply 24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power Consumption 4 W (1.25 W)
Transformer Sizing 6 VA (Class 2 power source)
Electrical Connection 18 GA plenum rated cable
1/2” conduit connector
❑ 3 ft [1m] ❑ 10 ft [3m] ❑ 16 ft [5m]
Overload Protection electronic throughout 0 to 95° rotation
Operating Range Y 2 to 10 VDC, 4 to 20 mA (default)
Variable (VDC, PWM, Floating Point,
On/Off)
Input Impedance 100 kΩ (0.1 mA), 500Ω
1500 Ω (PWM, Floating Point, On/Off)
Feedback Output U 2 to 10 VDC, 0.5 mA max
VDC Variable
Angle of Rotation max. 95°, adjust. with mechanical stop
electronically variable
Torque 180 in-lb [20 Nm]
Direction of Rotation reversible with switch
Position Indication reflective visual indicator (snap-on)
Manual Override external push button
Running Time 35 seconds (default)
Variable (35 to 120 secs)
Humidity 5 to 95% RH non condensing
(EN 60730-1)
Ambient Temperature -22°F to +122°F [-30°C to +50°C]
Storage Temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA 2/IP54
Housing Material UL94-5VA
Agency Listings cULus acc. to UL 60730-1/-2-14 and
CAN/CSA C22.2 No.24, CE according
to 73 / 23 / EEC
Noise Level <45dB(A)
Servicing maintenance free
Quality Standard ISO 9001
Weight 2.6 lbs [1.2 kg]
Torque min. 180 in-lb for control of damper
surfaces up to 45 sq ft.
Application
For proportional modulation of dampers in HVAC systems.
Actuator sizing should be done in accordance with the
damper manufacturer’s specifications.
The actuator is mounted directly to a damper shaft up to 1.05”
in diameter by means of its universal clamp, 1/2” self-centered
default. A crankarm and several mounting brackets are avail-
able for applications where the actuator cannot be direct cou-
pled to the damper shaft.
The default parameters for 2 to 10 VDC applications of the
…MFT actuator are assigned during manufacturing. If neces-
sary, custom versions of the actuators can be ordered. The
parameters can be changed by two means: pre-set and cus-
tom configurations from Belimo or on-site configurations using
the Belimo PC-Tool software.
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 AMX series provides 95° of rotation and a visual indicator
indicates position of the actuator. 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 AMCX24-MFT actuators use a 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.
Add on auxiliary switches or feedback potentiometers are
easily fastened directly onto the actuator body for signaling
and switching functions
Dimensions
(All numbers in brackets are in millimeters.)
1.18" [30]
4.3" [109]
4.06" [103]
5.2" [131]
8.3" [211]
3.46" [88] 2.49" [63.4]
2" [50.8]
1/2” to 1.05” [12.7 to 26.67]
2/5” to 1.05” [10 to 26.67]
©
D143
150
I20618 - Subject to change. © Belimo Aircontrols (USA), Inc.
®