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Belimo AF Series Actuators

Belimo spring return fail safe actuators with 180 in-lbs torque.  With a comprehensive list of control options and direct coupled installation compatibility, these actuators are great for any HVAC application.

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  • Product Description

    For fail-safe, modulating control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. The actuator is mounted directly to a damper shaft up to 1.05” in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.

    The AF series actuators provide true spring return operation for reliable fail-safe application and positive close off on air tight dampers. The spring return system provides constant torque to the damper with, and without, power applied to the actuator. The AF series provides 95° of rotation and is provided with a graduated position indicator showing 0° to 95°.

    The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. Maximum of two AF’s can be piggybacked for torque loads of up to 266 in-lbs. Minimum 3/4” diameter shaft and parallel wiring.

    ATTENTION: AFB24-SR/-S cannot be tandem mounted on the same damper or valve shaft. Only On/Off and MFT AFB models can be used for tandem mount applications.

  • Additional information

    Weight N/A
    Dimensions N/A

    AFB24 (2-position, 24V), AFB24-S (2-postion, 24V, end switch), AFBUP (2-position, 24-240V), AFBUP-S (2-postion, 24-240V, end switch), AFB24SR (Modulating, 24V), AFB24SR-S (Modulating, 24V, end switch)

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