NFB24-SR-S | Belimo | Damper Actuator
- SKU: NFB24-SR-S
Estimated delivery in 4-7 business days
NFB24-SR-S Damper Actuator, proportional, 24V, spring return (fail-safe), built-in auxiliary switch
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 actuator operates in response to a 2 to 10 VDC or, with the addition of a 500Ω resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication. Not to be used for a master-slave application.