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

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

Belimo
zł1,263.75
VAT included
zł1,027.44 tax excluded

Belimo NFA-S2 rotary actuator for air dampers, with a fail-safe function provided by a return spring. Torque 10 Nm, power supply AC 24...240 V / DC 24...125 V and Open/Close control.

Motor running time 75 s / 90°. The actuator has 2x SPDT integrated auxiliary switches and an IP54 protection rating.

Delivery in approx. 14 days
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Belimo NFA-S2 – actuator for dampers

This rotary actuator with a fail-safe function is designed to control dampers in technical building systems. When powered, it moves the damper to the operating position and tensions the return spring; when power is interrupted, the spring moves it to the safety position.

Key features and parameters

  • Motor and fail-safe function torque: 10 Nm.
  • Rated voltage: AC 24...240 V / DC 24...125 V; rated voltage frequency: 50/60 Hz.
  • Control: Open/Close; motor running time: 75 s / 90°.
  • Fail-safe function running time: <20 s @ -20...50°C, <60 s @ -30°C.
  • Auxiliary switches: 2x SPDT, 1x 10% / 1x 11...100%.
  • Power consumption during operation: 6 W; in the rest position: 2.5 W; power consumption for wire sizing: 9.5 VA.
  • Rotation angle: max. 95°; adjustable using mechanical stops.
  • Mechanical connection: universal clamp 10...25.4 mm; mechanical position indicator.
  • Manual override using a crank and locking switch.
  • Protection rating: IP54; ambient temperature: -30...50°C [-22...122°F].

Power and control connection: 1 m cable, 2x 0.75 mm². Auxiliary switch connection: 1 m cable, 6x 0.75 mm². The integrated auxiliary switches must be operated either at mains voltage or at safety extra-low voltage — do not connect both types of voltage.

  • Brand
    Belimo
  • Reference
    NFA-S2
  • EAN13
    7630498112928

  • AC/DC voltage
    AC 24...240 V / DC 24...125 V
  • Auxiliary switch connection
    Cable 1 m, 6x 0.75 mm²
  • Power consumption (running)
    6 W
  • Power consumption (holding)
    2.5 W
  • Rated power
    9.5 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
    10 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

Download (1.32MB)

Instrukcja montażu

Download (1.63MB)

Techniczna karta katalogowa – NFA-S2

Download (1.33MB)

EU Declaration of Conformity – NFA-S2

Download (32.5KB)

Environmental Declaration – NF..

Download (72.3KB)
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