Belimo SRFA-S2-R - rotary actuator with spring return

Belimo SRFA-S2-R - rotary actuator with spring return

Belimo
zł1,743.54
VAT included
zł1,417.51 tax excluded

RetroFIT+ rotary actuator for rotary valves and dampers. Torque 20 Nm, Close/Open control, AC 24...240 V / DC 24...125 V supply and 2x SPDT.

The spring return moves the valve to the selected safety position when power is lost. Motor running time is 75 s / 90°.

Delivery in approx. 14 days
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Belimo SRFA-S2-R – RetroFIT+ rotary actuator

Actuator for rotary valves and dampers. During operation, the drive moves the valve and tensions the spring return; when power is interrupted, the spring moves the valve to the safety position.

Key features

  • Motor and safety function torque: 20 Nm.
  • Control: Close/Open; rated voltage: AC 24...240 V / DC 24...125 V, 50/60 Hz.
  • Motor running time: 75 s / 90°; safety function running time: <20 s @ -20...50°C, <60 s @ -30°C.
  • Selectable safety function direction: NC — valve closed when power is lost (A–AB = 0%) or NO — valve open (A–AB = 100%).
  • Two integrated auxiliary switches: 2x SPDT, 1x 10% / 1x 11...100%.
  • Manual operation using a crank and locking switch; mechanical position indicator and adjustable mechanical rotation angle stops.
  • Connection flange F03/F04/F05; degree of protection IP54.
  • Power consumption during operation: 7 W; at rest: 3.5 W; for cable sizing: 18 VA.

The stem form-fit adapter is not included.

  • Brand
    Belimo
  • Reference
    SRFA-S2-R
  • EAN13
    7630498115318

  • 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
  • Auxiliary contacts
    2x SPDT
  • Torque
    20 Nm
  • Direction of rotation (safety function)
    Selectable: NC, valve closed when power is off (A–AB = 0%) NO, valve open when power is off (A–AB = 100%)

Techniczna karta katalogowa

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Instrukcja montażu

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Techniczna karta katalogowa – SRFA-S2-R

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Environmental Declaration – SRF..

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