Belimo SF24A-SZ - rotary actuator for dampers with fail-safe function

Belimo SF24A-SZ - rotary actuator for dampers with fail-safe function

Belimo
zł1,291.35
VAT included
zł1,049.88 tax excluded

The Belimo SF24A-SZ rotary actuator with fail-safe function is designed to control dampers in technical building systems. It has a torque of 20 Nm, an AC/DC 24 V supply and DC 0.5...10 V control.

If the power supply is interrupted, the spring moves the damper to the safety position. The actuator is designed for air dampers with an area of up to approx. 4 m².

Delivery in approx. 14 days
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Belimo SF24A-SZ – rotary actuator with fail-safe function

The actuator controls dampers in stationary heating, ventilation and air conditioning systems. In response to the Y control signal, it moves the damper to the operating position while tensioning the return spring. If the power supply is interrupted, the spring moves the damper to the safety position.

Key features and specifications

  • Motor and fail-safe function torque: 20 Nm.
  • Supply: AC/DC 24 V; power consumption during motion: 5 W, at rest: 3 W.
  • Control signal Y: 0.5...10 V; feedback signal U: 0.5...10 V.
  • Motor running time: 150 s / 90°; fail-safe function running time: <20 s @ -20...50°C, <60 s @ -30°C.
  • Rotation angle: max. 95°; adjustable using mechanical stops.
  • Motor direction selected by the L/R switch; fail-safe function direction selected by L/R mounting.
  • Manual adjustment using a crank and locking switch.
  • Mounting on the damper shaft: universal clamp 10...25.4 mm.
  • Power and control connection: 1 m cable, 4x 0.75 mm².
  • Degree of protection: IP54; ambient temperature: -30...50°C [-22...122°F].

  • Brand
    Belimo
  • Reference
    SF24A-SZ

  • AC/DC voltage
    AC/DC 24 V
  • Power consumption (running)
    5 W
  • Power consumption (holding)
    3 W
  • Rated power
    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]
  • Torque
    20 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

EU Declaration of Conformity – SF24A-SZ

Download (32.53KB)

Environmental Declaration – SF..

Download (72.39KB)

Technical data sheet – SF24A-SZ

Download (1.21MB)
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