Belimo LF24-SR - rotary actuator for dampers with fail-safe function

Belimo LF24-SR - rotary actuator for dampers with fail-safe function

Belimo
zł971.24
VAT included
zł789.63 tax excluded

Belimo LF24-SR rotary actuator for dampers with fail-safe function and return spring. Torque 4 Nm, AC/DC 24 V supply, analogue control or MP-Bus communication.

Motor running time is 150 s / 90° (adjustable 75...300 s). Degree of protection IP54.

Delivery in approx. 14 days
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Belimo LF24-SR

Rotary actuator with fail-safe function for positioning dampers in technical building systems. During operation, it tensions the return spring; if the power supply is interrupted, the spring moves the damper to the safety position.

Key features

  • Motor and fail-safe function torque: 4 Nm.
  • Power supply: AC/DC 24 V, 50/60 Hz.
  • Modulating control in the range 2...10 V; open/close, 3-point and MP-Bus communication modes are also available.
  • Position feedback signal U: 2...10 V.
  • Motor running time: 150 s / 90°; adjustable 75...300 s.
  • Fail-safe function running time: <20 s @ -20...50°C, <60 s @ -30°C.
  • Maximum rotation angle: 95°; mechanical rotation angle limitation and mechanical position indicator.
  • Universal shaft clamp 8...16 mm; power and control connection: cable 1 m, 4x 0.75 mm².
  • Power consumption during operation: 2 W; in standby: 0.8 W; for cable sizing: 3.5 VA.
  • Degree of protection IP54; ambient temperature: -30...50°C [-22...122°F].

The motor direction can be selected using the L/R switch, while the fail-safe function direction is determined by the L/R mounting method. The actuator has no manual override function.

  • Brand
    Belimo
  • Reference
    LF24-SR
  • EAN13
    7630498104916

  • AC/DC voltage
    AC/DC 24 V
  • Power consumption (running)
    2 W
  • Power consumption (holding)
    0.8 W
  • Rated power
    3.5 VA
  • Power supply control connection
    Cable 1 m, 4x 0.75 mm²
  • Control type
    MP-Bus DC 2...10 V DC 0.5...10 V
  • Protection rating
    IP54
  • Manual override
    No
  • Running time (motor)
    150 s / 90°
  • Running time (safety function)
    ＜20 s
  • Variable motor running time
    75...300 s
  • Ambient temperature
    -30...50°C [-22...122°F]
  • Torque
    4 Nm
  • Direction of movement - motor
    Selectable using the L/R switch
  • Rotational angle
    95°
  • Mechanical connection
    Universal clamp 8...16 mm
  • Direction of rotation (safety function)
    Selectable by mounting L/R

Techniczna karta katalogowa

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Instrukcja montażu

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Techniczna karta katalogowa – LF24-SR

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EU Declaration of Conformity – LF24-SR

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Environmental Declaration – LF..

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