Belimo NF24A-SZ-S2 - analogue safety rotary actuator

Belimo NF24A-SZ-S2 - analogue safety rotary actuator

Belimo
zł1,228.30
VAT included
zł998.62 tax excluded

Analogue rotary actuator for positioning dampers and valves in building systems. Torque 10 Nm, AC/DC 24 V supply, Y operating range 0.5...10 V and U feedback signal 0.5...10 V.

The return spring moves the damper to the safety position after a power failure. The actuator has 2 built-in SPDT auxiliary switches and an IP54 protection rating.

Delivery in approx. 14 days
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Belimo NF24A-SZ-S2

Analogue rotary actuator with safety function for positioning dampers and valves in building systems. According to the data sheet, it is designed for air dampers with an area of up to approx. 2 m². During operation, it positions the damper according to the control signal and tensions the return spring; a power failure moves the damper to the safety position.

Key features and specifications

  • Motor and safety function torque: 10 Nm.
  • Rated voltage: AC/DC 24 V; rated voltage frequency: 50/60 Hz.
  • Y operating range: 0.5...10 V; U feedback signal: 0.5...10 V.
  • 2 built-in auxiliary switches: 2x SPDT, 1x 10% / 1x 11...100%.
  • Motor running time: 150 s / 90°; safety function running time: <20 s @ -20...50°C, <60 s @ -30°C.
  • Angle of rotation: max. 95°; adjustable using a mechanical stop.
  • Motor direction selected by L/R switch; safety function direction selected by L/P mounting.
  • Manual adjustment with a crank and position locking with a locking switch.
  • Mechanical connection: universal clamp 10...25.4 mm.
  • Power consumption during operation: 2.9 W; at rest: 1.1 W; rated power: 4.7 VA.
  • Power / control connection: 1 m cable, 4x 0.75 mm²; auxiliary switch connection: 1 m cable, 6x 0.75 mm².
  • IEC/EN enclosure protection rating: IP54; ambient temperature: -30...50°C [-22...122°F].

  • Brand
    Belimo
  • Reference
    NF24A-SZ-S2

  • AC/DC voltage
    AC/DC 24 V
  • Auxiliary switch connection
    Cable 1 m, 6x 0.75 mm²
  • Power consumption (running)
    2.9 W
  • Power consumption (holding)
    1.1 W
  • Rated power
    4.7 VA
  • Power supply control connection
    Cable 1 m, 4x 0.75 mm²
  • Control type
    DC 0.5...10 V
  • 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)
    150 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 using the L/R switch
  • Rotational angle
    95°
  • Mechanical connection
    Universal clamp 10...25.4 mm
  • Direction of rotation (safety function)
    Selectable by mounting L/R

Techniczna karta katalogowa – NF24A-SZ-S2

Download (1.39MB)

EU Declaration of Conformity – NF24A-SZ-S2

Download (32.58KB)

Environmental Declaration – NF..

Download (72.33KB)

Technical data sheet – NF24A-SZ-S2

Download (1.38MB)
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