BELIMO Fire and Smoke Actuator - 11 Total | Fire Protection General

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    Item Details

    Item Id 382219
    Item #: 382219
    Item: BELIMO Fire and Smoke Actuator - 11 Total
    Model #: FSAFB24-SR
    Serial #: N/A
    Year Built: N/A
    Location: Ohio
    Price: $4,675.00



    For proportional control of fire and smoke combination and smoke dampers in UL555S applications. In new installations, UL 555S requires that actuators be mounted by the damper manufacturer.

    The FSAFB24-SR & FSAFB24-SR-S actuators provide 95° of rotation and are provided with a graduated position indicator showing 0° to 95°. A unique manual override allows the setting of any actuator position within its 95° of rotation with no power applied. This mechanism can be released physically by the use of a crank supplied with the actuator. When power is applied the manual override is released and the actuator drives toward the fail-safe position to synchronize before going to the position commanded by the signal.

    The actuator uses a brushless DC motor which is controlled by an Application Specific Integrated Circuit (ASIC).The ASIC monitors and controls the brushless DC motor’s rotation and provides a Digital Rotation Sensing (DRS) function to prevent damage to the actuator in a stall condition. The position feedback signal is generated by a feedback potentiometer. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. The actuator cannot burn out from being stalled before full rotation is achieved.

    The FSAFB24-SR, FSAFB24-SR-S, is mounted directly to control shafts up to 1.05” diameter by means of its universal clamp and anti-rotation bracket. A crank arm and several mounting brackets are available for damper applications where the actuator cannot be direct coupled to the damper shaft. The spring return system provides the specified torque to the application during a power interruption. The FSAFB24-SR, FSAFB24-SR-S, actuator is shipped at +5° (5° from full fail-safe) to provide automatic compression against damper gaskets for tight shut-off.

    Additional Prep Fees May Apply


    Height: 10.00 in
    Width: 17.00 in
    Length: 22.00 in
    Weight: 55.50 lbs
    Prep Fee: $35.00
    Registered Customers can request shipping quotes free of charge. Shipping Quotes take 1-3 Business Days to Process
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