Belimo SFA-S2 - rotary actuator for dampers with fail-safe function

Belimo SFA-S2 - rotary actuator for dampers with fail-safe function

Belimo
zł1,433.86
VAT included
zł1,165.74 tax excluded

Belimo SFA-S2 rotary actuator for dampers with fail-safe function and return spring. Torque 20 Nm, Close/Open control, power supply AC 24...240 V / DC 24...125 V and 2x SPDT.

Motor running time is 75 s / 90°. If the power supply is interrupted, the spring moves the damper to the safety position.

Delivery in approx. 14 days
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Belimo SFA-S2 – rotary actuator with fail-safe function

The actuator is designed to control dampers in stationary heating, ventilation and air conditioning systems. It is equipped with a return spring that moves the damper to the safety position if the power supply is interrupted. According to the technical data sheet, it is suitable for air dampers with an area of up to approx. 4 m².

Key features and specifications

  • Torque of the motor and fail-safe function: 20 Nm.
  • Nominal voltage: AC 24...240 V / DC 24...125 V; frequency: 50/60 Hz.
  • Control: Close/Open.
  • Motor running time: 75 s / 90°; fail-safe function running time: <20 s @ -20...50°C, <60 s @ -30°C.
  • Two integrated auxiliary switches: 2x SPDT, 1x 10% / 1x 11...100%.
  • Rotation angle: max. 95°, with adjustable mechanical stop.
  • Manual operation using a crank and locking switch; mechanical position indicator.
  • Mechanical connection: universal clamp 10...25.4 mm.
  • Power consumption during operation: 7 W; in the rest position: 3.5 W; sizing power: 18 VA.
  • Power and control connection: 1 m cable, 2x 0.75 mm²; auxiliary switch connection: 1 m cable, 6x 0.75 mm².
  • Degree of protection: IP54; ambient temperature: -30...50°C [-22...122°F].

  • Brand
    Belimo
  • Reference
    SFA-S2
  • EAN13
    7630498114144

  • AC/DC voltage
    AC 24...240 V / DC 24...125 V
  • Auxiliary switch connection
    Cable 1 m, 6x 0.75 mm²
  • Power consumption (running)
    7 W
  • Power consumption (holding)
    3.5 W
  • Rated power
    18 VA
  • Power supply control connection
    Cable 1 m, 2x 0.75 mm²
  • Control type
    Close/Open
  • Protection rating
    IP54
  • NEMA protection rating
    NEMA 2
  • Enclosure type
    UL Enclosure Type 2
  • Manual override
    Using the crank and locking switch
  • Running time (motor)
    75 s / 90°
  • Running time (safety function)
    ＜20 s
  • Ambient temperature
    -30...50°C [-22...122°F]
  • Auxiliary contacts
    2x SPDT
  • Torque
    20 Nm
  • Direction of movement - motor
    Selectable by mounting L/R
  • Rotational angle
    95°
  • Mechanical connection
    Universal clamp 10...25.4 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 – SFA-S2

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EU Declaration of Conformity – SFA-S2

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Environmental Declaration – SF..

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