Belimo NFA-S2 Damper Actuator

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Introducing the Belimo NFA-S2 Rotary Actuator, designed for fail-safe adjustment of dampers in technical building installations. Ideal for air damper sizes up to approximately 2 m² , this actuator ensures reliable performance with a robust torque motor of 10 Nm. Whether for industrial applications or engineering projects, the NFA-S2 combines efficiency and durability, making it a top choice for tradesmen and engineering companies. Click here for the technical data PDF Electrical Data: Nominal Voltage: AC 24...240 V / DC 24...125 V Nominal Voltage Frequency: 50/60 Hz Nominal Voltage Range: AC 19.2...264 V / DC 21.6...137.5 V Power Consumption in Operation: 6 W Power Consumption in Rest Position: 2.5 W Power Consumption for Wire Sizing: 9.5 VA Auxiliary Switch: 2x SPDT, 1x 10% / 1x 11...100% Switching Capacity Auxiliary Switch: 1 mA...3 A (0.5 A inductive), DC 5 V...AC 250 V Connection Supply / Control: Cable 1 m, 2x 0.75 mm² Connection Auxiliary Switch: Cable 1 m, 6x 0.75 mm² Parallel Operation: Yes (note the performance data) Functional Data: Torque Motor: 10 Nm Torque Fail-Safe: 10 Nm Direction of Motion Motor: Selectable by mounting L/R Direction of Motion Fail-Safe: Selectable by mounting L/R Manual Override: By means of hand crank and locking switch Angle of Rotation: Max. 95° Angle of Rotation Note: Adjustable starting at 33% in 2.5% steps (with mechanical end stop) Running Time Motor: 75 s / 90° Running Time Fail-Safe: Show more