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Belimo NFB24 Damper Actuator 90 in-lb Spring Return 24V On/Off, US $395 – Picture 0
Belimo NFB24 Damper Actuator 90 in-lb Spring Return 24V On/Off, US $395 – Picture 0

Belimo Nfb24 Damper Actuator 90 In-lb Spring Return 24v On/off

US $395

  • Saint Augustine, Florida, United States
  • Jun 1st
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Parts boxes may have some hand writing to denote prior location but does not affect the product. Products are new in box and in most cases still under full warranty from the manufacturer. Details will be listed but it is up to the responsibility of the buyer to know fitment, voltage, applications, etc. Thanks for looking, I'll do my best to provide some details below:  Torque min. 90 in-lb, for control of air dampers Application For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. Control is On/Off from an auxiliary contact, or a manual switch. 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. Operation The NFB and NFX series actuators provide true spring return operation for reliable failsafe 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 NFB and NFX 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. The NFB24-S and NFX24-S versions are provided with two built-in auxiliary switches. These SPDT switches are provided for safety interfacing or signaling, for example, for fan start-up. The switching function at the fail-safe position is fixed at +10°, the other switch function is adjustable between +10° to +90°. The NFB24, NFB24-S, NFX24 and NFX24-S actuator is shipped at +5° (5° from full fail-safe) to provide automatic compression against damper gaskets for tight shut-off.

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