198
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
LMB24-3
LMCB24-3
LMX24-3
LMB24-3-T
LMCB24-3-T
LMX24-3-T
LMB24-3-P5-T
LMB24-3-P10-T
LMB24-3-S
LMX120-3
LMB24-SR
LMCB24-SR
LMX24-SR
LMB24-SR-T
LMCB24-SR-T
LMX24-SR-T
LMX120-SR
LMX24-PC
LMB(X)24-MFT
LM Series - At A Glance
Pages 200 202 204 200202204200 200 200 206 208 210 212 208 210 212 214 216 218 220
Basic Product ●● ●● ●●● ●● ●● ●
Flexible Product ●● ●●●●●●●
Torque 45 in-lb [5 Nm] ●●●●●●●●●●●●●●●●●●●●
Angle of Rotation 95 degrees ●●●●●●●●●●●●●●●●●●●●
Power Supply 24 VAC/DC ●●●●●●●●● ●●●●●● ●●●
100 to 240 VAC ●●
Control Input On/Off, Floating Point ●●●●●●●●●●
2 to 10 VDC (4 to 20mA) ●●●●●●●
Multi-Function Technology ●
0 to 135Ω ●
0 to 20V Phasecut ●
Feedback None ●●●●●● ●●● ●●●
5 kΩ Potentiometer ●
10 kΩ Potentiometer ●
2 to 10 VDC ●● ● ●
Variable (0 to 10 VDC) ●●
Running Time 95 seconds ●●●●●●● ●
35 seconds ●● ●●
Adj. 35 to 150 seconds ●● ●●●●●●
Wiring Plenum Rated Cable ●●● ●●● ●●●
Appliance Rated Cable ●● ●
Terminal Strip ●●●●● ●●●
Conduit Fitting ●●● ●●●●● ●●●●
Auxiliary Switch Built-In ●
Add-On ●●●●●●●●●●●●●●●●●●●●
Installation and Operation… (page 265).
*Based on 4 in-lb/ft2damper torque loading. Parallel blade. No edge seals.
LM Series Direct Coupled Actuator
Versatile and Powerful
● Minimum 45 in-lb torque in a compact package.
For damper areas up to 11 sq-ft*
All Actuators
have BDCM
LMX24-MFT95
®
O
M
L
©
O
A
H
B
r
r
o
u
t
s
o
h
M
l
e
s
C
s
D
199
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
LM
LM Series Direct Coupled Actuator
● Brushless DC Motor for Added Accuracy and
Controllability.
● Cut Labor Costs with Simple Direct Coupling.
● Self-Centers on 5/8" Jackshafts with Standard Clamp or
3/4" with Flexible Line Selection or Accessory Clamp.
● Check Damper Position with Clear Position Indicator.
● Don’t Worry about Actuator Burn-Out; Belimo is
Overload Proof throughout Rotation.
● Enjoy Added Flexibility with Easy Mechanical Stops
to Adjust Angle of Rotation.
● Need to Change Control Direction? Do it easily with
a Simple Switch.
● Easily Accessible Manual Override Button
helps you Pre-Tension Damper Blades.
● Fully Adjustable Built-In Auxiliary Switch (LMB24-3-S).
● Auxiliary Switch and Feedback Potentiometer Add-Ons
Mount Directly on Clamp, Includes Conduit Connector.
● Standard 3ft Plenum Rated Cable and Conduit
Connector Provided on Basic Models.
● Added Flexibility to Select Clamp, Electrical
Connection, and Running Time to fit your Specific
Application with Belimo’s New Flexible Line of
Actuators.
The Belimo Difference
● Customer Commitment.
Extensive product range. Application assistance.
Same-day shipments. Free technical support. Five year warranty.
●
Low Installation and Life-Cycle Cost.
Easy installation. Accuracy and repeatability.
Low power consumption. No maintenance.
●
Long Service Life.
Components tested before assembly. Every product tested before shipment.
30+ years direct coupled actuator design.
©
H
A
L
O
M
O
B
r
u
s
h
l
e
s
s
D
C
M
o
t
o
r
A CLOSER LOOK…
Bulk Packaging Offers Big
Value for Large jobs,
Stocking Orders.
®
200
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Technical Data LMB24-3… on/off-floating
Power Supply 24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power Consumption 1.5 W (0.2 W)
Transformer Sizing 3 VA (Class 2 power source)
Electrical Connection 3 ft, 18 GA plenum rated cable
3 ft, 18 GA appliance rated cable (-S)
1/2” conduit connector
Overload Protection electronic throughout 0 to 95° rotation
Control on/off, floating point
Input Impedance 600Ω
Angle of Rotation max. 95°, adjust. with mechanical stop
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 95 seconds, constant independent of load
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
(and 2006/95/EC for -S versions)
Noise Level <35dB(A)
Servicing maintenance free
Quality Standard ISO 9001
Weight 1.1lbs [0.5 Kg],
LMB24-3-S
Auxiliary switch Adj. 0°to 100°, SPDT 3 A (0.5A) @ 250 VAC
Weight 1.4lbs [0.6 Kg]
LMB24-3-P10-T
Electrical connection Screw terminal (for 26 to 14 GA wire)
Feedback 10 kΩ, 1W potentiometer
LMB24-3-P5-T bulk pack only)
Feedback 5 kΩ, 1W potentiometer
Housing NEMA 1/IP20
LMB24-3-T
Electrical connection Screw terminal (for 26 to 14 GA wire)
Housing NEMA 1/IP20
†Rated Impulse Voltage 800V, Type of action 1,
(1.B for -S version), Control Pollution Degree 3.
1.85” [47]
2.34” [59.4]
2.6” [66]
4.57” [116]
3.47” [88]
3.7” [94]
0.86” [22]
2” [50.8]
1/4” to 3/4” [6 to 20]
5/16” to 3/4” [8 to 26]
LMB24-3 (-S)(-T)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
Torque min. 45 in-lb for control of damper
surfaces up to 11 sq ft.
LMB24-3 LMB24-3.1 (bulk) LMB24-3-P10-T
LMB24-3-T LMB24-3-T.1 (bulk) LMB24-3-S
LMB24-3-P5-T LMB24-3-P5-T.1 (bulk)
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.
The actuator is mounted directly to a damper shaft from 1/4”
up to 5/8” in diameter by means of its standard universal
clamp. Shafts up to 3/4” diameter can be accommodated by
an accessory clamp.
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 LMB series provides 95° of rotation and a visual indicator
which indicates position of the actuator. When reaching the
damper or actuator end position, the actuator automatically
stops. The gears can be disengaged with manual release on
the actuator cover.
The LMB24-3… 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.
The LMB24-3-S version is provided with 1 built-in auxiliary
switch. This SPDT switch is provided for safety interfacing or
signaling, for example, for fan start-up. The switching function
is adjustable 0 to 95°. The auxiliary switch is double insulated
so an electrical ground connection is not necessary.
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.)
D120
®
O
L
A
H
B
r
u
s
h
l
e
s
s
D
M
©
O
r
o
t
o
M
C
Wiring Diagrams
LMB24-3 (-S)(-T)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
201
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
LM
®
LMB24-3 - Typical Specification:
Floating point, on/off control damper actuators shall be electronic direct-coupled type, which require no crankarm and linkage and be capable of direct mounting to a shaft from 1/4” to
5/8”. Shafts up to 3/4” diameter can be accommodate with an
accessory clamp. Actuators shall have Brushless DC motor
technology and be protected from overload at all angles of rotation. Actuators shall have reversing switch and manual override
on the cover. If required, actuator will be provided with screw
terminal strip for electrical connections (LMB24-3-T). If
required, actuators shall be provided with one adjustable SPDT
auxiliary switch. Actuators with auxiliary switches must be constructed to meet the requirements for double insulation so an
electrical ground is not required to meet agency listings. Run
time shall be constant and independent of torque. Actuators
shall be cULus listed, have a 5-year warranty, and be manufactured under ISO 9001 International Quality Control
Standards. Actuators shall be as manufactured by Belimo.
Accessories
K-LM20 3/4” [20 mm] Shaft Clamp
AV6-20 Shaft Extension
ZG-LMSA Shaft Adaptor for 1/2” Diameter Shafts
ZG-LMSA-1 Shaft Adaptor for 3/8” Diameter Shafts
ZS-T Terminal Cover for NEMA 2
ZS-100 Weather Shield - Steel
ZS-150 Weather Shield - Polycarbonate
Tool-06 8 mm & 10 mm Wrench
S1A, S2A Auxiliary Switch (es)
P370 Shaft Mount Auxiliary Switch
P…A Feedback Potentiometers
Note: When using LMB24-3… actuators, only use acces-
sories listed on this page.
W267
On/Off
Auxiliary Switch of LMB24-3-S
W268
Floating Point or On/Off control
24 V AC Transformer
1
Line
Volts
a open
a closed
4
2
a
Blk (1) Common
Red (2) +
Wht (3) +
The indication of direction
is valid for switch position 1.
Vlt (S1)
Red (S2)
Wht (S3)
NC
NO
10
3
0° to 95°
4
–
24 V AC Transformer
1
2
Line
Volts
The indication of direction
4
Blk (1) Common
Red (2) +
Wht (3) +
10
–
is valid for switch position 1.
Notes:
1
Provide overload protection and disconnect as required.
Actuators may also be powered by 24 VDC.
2
For end position indication, interlock control, fan startup,
3
etc., xMB24-3-S incorporates one built-in auxiliary
switches: 1 x SPDT, 3A (0.5A) @250 VAC, UL listed,
adjustable 0° to 95°.
Meets cULus requirements without the need of an
4
electrical ground connection.
202
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Technical Data LMCB24-3… on/off-floating
Power Supply 24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power Consumption 1.5 W (0.2 W)
Transformer Sizing 3 VA (Class 2 power source)
Electrical Connection 3 ft, 18 GA plenum rated cable
3 ft, 18 GA appliance rated cable (-S)
1/2” conduit connector
Overload Protection electronic throughout 0 to 95° rotation
Control on/off, floating point
Input Impedance 600Ω
Angle of Rotation max. 95°, adjust. with mechanical stop
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 35 seconds, constant independent of load
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 <45dB(A)
Servicing maintenance free
Quality Standard ISO 9001
Weight 1.1lbs [0.5 Kg],
LMCB24-3-T
Electrical connection Screw terminal (for 26 to 14 GA wire)
Housing NEMA 1/IP20
†Rated Impulse Voltage 800V, Type of action 1,
Control Pollution Degree 3.
1.85” [47]
2.34” [59.4]
2.6” [66]
4.57” [116]
3.47” [88]
3.7” [94]
0.86” [22]
2” [50.8]
1/4” to 3/4” [6 to 20]
5/16” to 3/4” [8 to 26]
LMCB24-3 (-T)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
Torque min. 45 in-lb for control of damper
surfaces up to 11 sq ft.
LMCB24-3
LMCB24-3-T
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.
The actuator is mounted directly to a damper shaft from 1/4”
up to 5/8” in diameter by means of its standard universal
clamp. Shafts up to 3/4” diameter can be accommodated by
an accessory clamp.
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 LMB series provides 95° of rotation and a visual indicator
which indicates position of the actuator. When reaching the
damper or actuator end position, the actuator automatically
stops. The gears can be disengaged with manual release on
the actuator cover.
The LMCB24-3… 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.
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.)
D120
O
M
L
©
O
A
H
B
r
r
o
u
t
s
o
h
M
l
e
s
C
s
D
®
Wiring Diagrams
203
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
LM
LMCB24-3 (-T)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
LMCB24-3 - Typical Specification:
Floating point, on/off control damper actuators shall be electronic direct-coupled type, which require no crankarm and linkage and be capable of direct mounting to a shaft from 1/4” to
5/8”. Shafts up to 3/4” diameter can be accommodate with an
accessory clamp. Actuators shall have Brushless DC motor
technology and be protected from overload at all angles of rotation. Actuators shall have reversing switch and manual override
on the cover. If required, actuator will be provided with screw
terminal strip for electrical connections (LMCB24-3-T). If
required, actuators shall be provided with one adjustable SPDT
auxiliary switch. Actuators with auxiliary switches must be constructed to meet the requirements for double insulation so an
electrical ground is not required to meet agency listings. Run
time shall be constant and independent of torque. Actuators
shall be cULus listed, have a 5-year warranty, and be manufactured under ISO 9001 International Quality Control
Standards. Actuators shall be as manufactured by Belimo.
Accessories
K-LM20 3/4” [20 mm] Shaft Clamp
AV6-20 Shaft Extension
ZG-LMSA Shaft Adaptor for 1/2” Diameter Shafts
ZG-LMSA-1 Shaft Adaptor for 3/8” Diameter Shafts
ZS-T Terminal Cover for NEMA 2
ZS-100 Weather Shield - Steel
ZS-150 Weather Shield - Polycarbonate
Tool-06 8 mm & 10 mm Wrench
S1A, S2A Auxiliary Switch (es)
P370 Shaft Mount Auxiliary Switch
P…A Feedback Potentiometers
Note: When using LMCB24-3… actuators, only use acces-
sories listed on this page.
Floating Point or On/Off control
®
24 V AC Transformer
1
Line
Volts
a open
a closed
4
2
a
Blk (1) Common
Red (2) +
Wht (3) +
The indication of direction
is valid for switch position 1.
10
–
24 V AC Transformer
1
2
Line
Volts
The indication of direction
4
Blk (1) Common
Red (2) +
Wht (3) +
10
–
is valid for switch position 1.
Notes:
Provide overload protection and disconnect as required.
1
Actuators may also be powered by 24 VDC.
2
Meets cULus requirements without the need of an
4
electrical ground connection.
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Technical Data LMX24-3… on/off-floating
Power Supply 24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power Consumption 1.5 W (0.2 W)
Transformer Sizing 2 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
Control on/off, floating point
Input Impedance 600Ω
Angle of Rotation max. 95°, adjust. with mechanical stop
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 ❑ 45 seconds
❑ 95 seconds ❑ 35 seconds
❑ 60 seconds
constant independent of load
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 1.1lbs [0.5 Kg],
LMX24-3-T
Electrical connection screw terminal (for 26 to 14 GA wire)
❑ unprotected (NEMA 1)
❑ protected (NEMA 2)
†Rated Impulse Voltage 800V, Type of action 1,
Control Pollution Degree 3.
1.85” [47]
2.34” [59.4]
2.6” [66]
4.57” [116]
3.47” [88]
3.7” [94]
0.86” [22]
2” [50.8]
1/4” to 3/4” [6 to 20]
5/16” to 3/4” [8 to 26]
LMX24-3 (-T)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
Torque min. 45 in-lb for control of damper
surfaces up to 11 sq ft.
LMX24-3
LMX24-3-T
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.
The actuator is mounted directly to a damper shaft from 1/4”
up to 5/8” in diameter by means of its standard universal
clamp. Shafts up to 3/4” diameter can be accommodated by
an accessory clamp.
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
which indicates position of the actuator. When reaching the
damper or actuator end position, the actuator automatically
stops. The gears can be disengaged with manual release on
the actuator cover.
The LMX24-3… 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.
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.)
D120
®
L
A
H
B
r
u
s
h
l
e
s
s
O
M
©
O
r
o
t
o
M
C
D
LM
Wiring Diagrams
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Floating Point or On/Off control
LMX24-3 (-T)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
LMX24-3 - Typical Specification:
Floating point, on/off control damper actuators shall be electronic direct-coupled type, which require no crankarm and linkage and be capable of direct mounting to a shaft from 1/4” to
5/8”. Shafts up to 3/4” diameter can be accommodate with an
accessory clamp. Actuators shall have Brushless DC motor
technology and be protected from overload at all angles of rotation. Actuators shall have reversing switch and manual override
on the cover. If required, actuator will be provided with screw
terminal strip for electrical connections (LMX24-3-T). Run time
shall be constant and independent of torque. Actuators shall be
cULus listed, have a 5-year warranty, and be manufactured
under ISO 9001 International Quality Control Standards.
Actuators shall be as manufactured by Belimo.
Accessories
K-LM20 3/4” [20 mm] Clamp
AV6-20 Shaft Extension
ZG-LMSA Shaft Adaptor for 1/2” Diameter Shafts
ZG-LMSA-1 Shaft Adaptor for 3/8” Diameter Shafts
ZS-T Terminal Cover for NEMA 2
ZS-100 Weather Shield - Steel
ZS-150 Weather Shield - Polycarbonate
Tool-06 8 mm & 10 mm Wrench
S1A, S2A Auxiliary Switch (es)
P370 Shaft Mount Auxiliary Switch
P…A Feedback Potentiometers
Note: When using LMX24-3… actuators, only use acces-
sories listed on this page.
®
24 V AC Transformer
1
Line
Volts
a open
a closed
3
2
a
Blk (1) Common
Red (2) +
Wht (3) +
The indication of direction
is valid for switch position 1.
10
–
LMX24-3
24 V AC Transformer
1
Line
Volts
The indication of direction
3
2
Blk (1) Common
Red (2) +
Wht (3) +
10
is valid for switch position 1.
Notes:
Provide overload protection and disconnect as required.
1
Actuators may also be powered by 24 VDC.
2
–
LMX24-3
Meets cULus requirements without the need of an
3
electrical ground connection.
206
J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
Technical Data LMX120-3 on/off-floating
Power Supply 100 to 240 VAC, 50/60 Hz (nominal)
85 to 265 VAC, 50/60 Hz (tolerance)
Power Consumption 2 W (0.5 W)
Transformer Sizing 4 VA (Class 2 power source)
Electrical Connection 18 GA appliance rated cable
1/2” conduit connector
❑ 3 ft [1m] ❑ 10 ft [3m] ❑ 16 ft [5m]
Overload Protection electronic throughout 0 to 95° rotation
Control on/off, floating point
Input Impedance 600Ω
Angle of Rotation max. 95°, adjust. with mechanical stop
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 ❑ 45 seconds
❑ 95 seconds ❑ 35 seconds
❑ 60 seconds
constant independent of load
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 1.1lbs [0.5 Kg]
†Rated Impulse Voltage 4kV, Type of action 1,
Control Pollution Degree 3.
1.85” [47]
2.34” [59.4]
2.6” [66]
4.57” [116]
3.47” [88]
3.7” [94]
0.86” [22]
2” [50.8]
1/4” to 3/4” [6 to 20]
5/16” to 3/4” [8 to 26]
LMX120-3
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 100 to 240 VAC
Torque min. 45 in-lb for control of damper
surfaces up to 11 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.
The actuator is mounted directly to a damper shaft from 1/4”
up to 5/8” in diameter by means of its standard universal
clamp. Shafts up to 3/4” diameter can be accommodated by
an accessory clamp.
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
which indicates position of the actuator. When reaching the
damper or actuator end position, the actuator automatically
stops. The gears can be disengaged with manual release on
the actuator cover.
The LMX120-3 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.
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.)
D120
A
H
B
r
u
s
h
l
O
M
L
©
O
r
o
t
o
M
e
s
C
s
D
®