218
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Technical Data
LMX24-MFT95
Power Supply
24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power Consumption
2 W (1.2 W)
Transformer Sizing
3.5 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 WRB 0 to 135
Ω
Honeywell Electronic
Series 90, 0 to 135
Ω
Input
Input Impedance
100 k
Ω
(0.1 mA)
Feedback Output U
2 to 10 Vdc, 0.5mA max
VDC Variable
Angle of Rotation
max. 95°, adjust. with mechanical
stop electronically variable
Torque
45 in-lb [5 Nm]
Direction of Rotation
reversible with switch
Position Indication
reflective visual indicator (snap-on)
Manual Override
external push button
Running Time
150 seconds (default)
Variable (35 to 150 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 UL60730-1A/-2-14,
CAN/CSA E60730-1, CSA C22.2
No. 24-93, CE acc. to 89/336/EEC
Noise Level
<35dB(A)
Servicing
maintenance free
Quality Standard
ISO 9001
Weight
1.5 lbs [0.7 kg]
†Rated Impulse Voltage 800V, Type of action 1,
Control Pollution Degree 3.
LMX24-MFT95
Proportional Control, Non-Spring Return, Direct Coupled, 24V, 0 to 135
Ω
Input
Torque min. 45 in-lb for control of damper
surfaces up to 11 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 from
1/4” up to 5/8” in diameter by means of its universal clamp.
Shafts up to 3/4” diameter can be accommodated by an
accessory clamp.
The default parameters for 0 to 135
Ω
input applications of the
…MFT95 actuator are assigned during manufacturing. If nec-
essary, 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 LMX 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 LMX24-MFT95 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.)
©
4.57" [116]
3.47" [88]
7.43" [188.7]
2" [50.8]
0.86" [22]
2.34" [59.4]
2.6" [66]
1/4” to 3/4” [6 to 20]
5/16” to 3/4” [8 to 26]
D141
®
