NF24A-SR-S2 - Belimo Spring-return Damper Actuator 10 Nm, < 150 s, 95°

At IACS we provide Free Delivery and Next 1-2 day Delivery for all the Belimo Actuators in stock.

The Belimo NF24A-SR-S2 is an Actuator used in HVAC applications and air ventilation systems.

The Torque force applied by the NF24A-SR-S2 is 10 Nm.

The power supply requested for this Rotary Actuator is 24Vac/Vdc.

Find at IACS the ideal Belimo Actuator compatible with your system at the best price.

If you are unsure about size or installation, refer to the Belimo custom datasheet above or message iacs to receive special instructions and a custom quote.

NF24A-SR-S2 - Spring-return actuator 10 Nm, < 150 s, 95°

•   AC / DC 24 V, Open/Close, 2 x SPDT
•   IP 54, Manual override with integrated position stop
•   Running time spring < 20 s
•   Control DC 0...10 V
•   Operating range DC 2...10 V
•   Position feedback DC 2...10 V
•   Connection PVC cable 1m
•   Auxiliary switch 2 integral
•   Rating 1 mA...3(0.5)A, AC 250 V 
•   Spindle driver universal spindle clamp
•   Direction of rotation reversible (right/left)
•   Angle of rotation limit. mech. adjustable



 

Features
 

• Mode of operation The actuator is controlled with a standard signal of DC 0 ... 10 V and moves the damper to the operating position at the same time as tensioning the return spring. The damper is turned back to the emergency position by spring force if the supply voltage is interrupted.


• Simple direct mounting Simple direct mounting on the damper spindle with a universal spindle clamp, supplied with an anti-rotation strap to prevent the actuator from rotating.


• Manual override Manual operation of the damper with the hand crank, locking in any position with the interlocking switch.


• Einstellbarer Drehwinkel Adjustable angle of rotation with mechanical end stop.


• High operational reliability The actuator is overload-proof, requires no limit switches and automatically stops when the end stop is reached.


• Flexible signalization The actuator has one auxiliary switch with a fixed setting and one adjustable auxiliary switch. They permit a 10% or 10 ... 90% angle of rotation to be signalled.

•     Electrical data Nominal voltage AC 24 V, 50/60 Hz DC 24 V
•     Nominal voltage range AC 19.2 ... 28.8 V / DC 21.6 ... 28.8 V
•     Power consumption In operation 3.5 W @ nominal torque At rest 2.5 W For wire sizing 5.5 VA
•     Auxiliary switch 2 x SPDT, 1 mA ... 3 (0.5) A, AC 250 V&nbsp;(1 x fix 10% / 1 x adjustable 10 ... 90%)
•     ConnectionCable 1 m, 4 x 0.75 mm² Auxiliary switchCable Cable 1 m, 6 x 0.75 mm²
•     Functional data Torque Motor Min. 10 Nm @ nominal voltage Spring return Min. 10 Nm
•     ControlControl signal YDC 0 … 10 V, input impedance 100 k Operating range DC 2 … 10 V
•     Position feedback (measuring voltage U)DC 2 … 10 V, max. 0.5 mA
•     Position accuracy±5%
•     Direction of rotationMotor Reversible with switch Spring return Can be selected by mounting L / R
•     Manual overrideWith hand crank and interlocking switch
•     Angle of rotationMax. 95°, can be limited with adjustable mechanical end stop
•     Running time Motor≤150 s (0 ... 10 Nm) Spring return ≤20 s @ –20 ... 50°C / max. 60 s @ –30°C
•     Sound power levelMotor≤40 dB (A) @ 150 s running time Spring return ≤62 dB (A) 
•     Service lifeMin. 60,000 emergency positions
•     Position indicationMechanical
•     SafetyProtection classIII Extra low voltageUL Class 2 Supply
•     Degree of protectionIP54NEMA2, UL Enclosure Type 2
•     EMC CE according to 2004/108/EC Low-voltage directive CE according to 2006/95/EC
•     Certification cULus according to UL 60730-1A and UL 60730-2-14and CAN/CSA E60730-1:02Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14
•     Mode of operation Type 1.AA
•     Rated impulse voltageActuator0.8 kV Auxiliary switch 2.5 kV 
•     Control pollution degree 3
•     Ambient temperature –30 ... +50°C
•     Non-operating temperature –40 ... +80°C
•     Ambient humidity 95% r.h., non-condensating
•     Maintenance Maintenance-free
•     Dimensions / Weight Dimensions See «Dimensions» on page 3
•     Weight Approx. 2.0 kg