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  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Wiring diagram
  • Overall dimensions
  • The LF series actuators with actuating torque 4 Nm are designed for controlling air dampers with cross section up to 0.8 m² installed in various ventilation and air conditioning systems and performing protection functions, as freezing protection, smoke detection, etc.
  • The actuator moves the damper to its operating position while tensioning the return spring at the same time.
  • In case of power supply cut-off, the damper moves back to its safe position by the spring energy.
  • The actuator is installed directly on the damper axis and locked with a special spindle clamp to prevent its turning-through.
  • The actuator overload protection stops the actuator once it reaches the end positions.
  • The turning angle may be adjusted by a mechanical end stop.
Parameter LF230
Measurement unit
Voltage 230 AC 50/60 Hz -
Nominal voltage range 198...264 AC V
Rated power 7 (max. I 150 mA at t = 10 ms) VA
Power consumption in operation/at rest 5/3 W
Connecting cable 1 m long, 2 x 0.75 mm² -
Rotation direction determined by L/R positioning -
Torque (motor/spring) 4 (at nominal voltage)/4 Nm
Rotation angle max. 95°, adjustable 37…100 % with a mechanical end stop -
Running time (motor/spring) 40…75 (0…4 Nm) /~20 at -20…50 °C sec
Service life 60 000 switching operations -
Ingress protection IP54 (installation with cable downwards) -
Electrical protection class III low voltage
II totally insulated
Operation temperature -30...+50 °С
Storage temperature -40…+80 °С
Ambient humidity 95 %, no condensation -
Noise level (motor/ spring) 50/~62 dBА
Maintenance not required -
Mass 1.55 kg
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"BELIMO LF230/LF24" product description 02-2020 (pdf 213.67Kb)
Download image "BELIMO LF230/LF24" for your website (png 556.22Kb)
Download high quality image "BELIMO LF230/LF24" (psd 1.81Mb)
Parameter Value Measurement unit
Wiring diagram
Wiring diagram

Overall dimensions
Overall dimensions

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