162
G20492-IG-Subject to change. © Belimo Aircontrols (USA), Inc.
Application
For on-off control of dampers in HVAC systems. Actuator sizing
should be done in accordance with the damper manufacturer’s
specifications. The actuator mounts directly to the damper oper-
ating shaft with a universal V-bolt clamp assembly.
Operation
The actuator is not provided with and does not require any
limit switches, but is electronically protected against overload.
The angle of rotation is mechanically limited to 95°. 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 position of the actua-
tor is indicated by a visual pointer. The anti-rotation strap sup-
plied with the actuator will prevent lateral movement.
Accessories
LM-P T-type anti-rotation bracket
ZG-LMSA Short shaft adaptor
Tool-06 8mm and 10 mm wrench
LM24-S US, LM24-10P US
On-off control, non-spring return, direct coupled, 24 V
Torque min. 35 in-lb, for control of damper surfaces up to 8 sq ft.
LM24-S US
LM24-10P US
LM24-S US
TEMP. IND &
REG. EQUIP.
Technical Data LM24-S US
Power supply 24 VAC ± 20% 50/60 Hz 24 VDC ± 10%
Power consumption running: 2 W; holding: 1 W
Transformer sizing 3 VA (Class 2 power source)
Electrical connection* 3 ft, 18 GA, UL CL2P plenum cable
Control On-off
Overload protection Electronic throughout 0 to 95° rotation
Angle of rotation max 95°, adjust. with mechanical stops
Torque min 35 in-lb [4 Nm]
Direction of rotation reversible w/switch L/R (not on “-T” models)
Position indication clip-on indicator (not on “-T” models)
Auxiliary switch Adj. 0° to 95°, SPDT 6 A (2.5A) @ 24 VAC
Running time 80 to 110 sec. for 0 to 35 in-lb
Manual override external push button
Humidity 5 to 95% RH, non-condensing
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 type NEMA type 2 (-T models NEMA 1)
Housing material rating UL94-5V
Noise level less than 35 dB (A)
Servicing maintenance free
Agency listings UL 873 listed, CSA C22.2
No.24 certified, CE
Quality standard ISO 9001
Weight 1.2 lbs [0.55 kg]
LM24-10P US
Control On-off/Floating point
Feedback 10 kΩ, 1W potentiometer
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