NF24G-SR-S2-L - Belimo Spring-return Damper Actuator 10 Nm, 150 s / 90°, 90°

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The Belimo NF24G-SR-S2-L is a kind of Actuator used in HVAC applications and air ventilation systems.

The Torque used by the NF24G-SR-S2-L is 10 Nm.

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

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If you have questions about size or installation, consult the Belimo custom datasheet above or send an email to iacs to get personalised guidance.

NF24A-SZ-S2 - Spring-return actuator 10 Nm, < s / 90°, 90°

•   AC / DC 24 V, modulating, 2 x SPDT
•   IP 66 NEMA4, Manual override with integrated position stop
•   Running time spring < 20 s
•   Control DC 0...10 V
•   Operating range DC 0.5...10 V
•   Position feedback DC 0.5...10 V
•   Connection FRNC cable 1m
•   Rating 1 mA...3(0.5)A, AC 250 V
•   Spindle driver universal spindle clamp
•   Angle of rotation limit. mech. adjustable




 

Features
 

• Fields of application The actuator is particularly suitable for utilisation in outdoor applications and is protected against the following weather conditions: – UV radiation– rain / snow– dirt / dust– humidity– Changing atmosphere / frequent and severe temperature fluctuations (recommendation: use the actuator with integrated factory-installed heating which can be ordered separately to prevent internal condensation *)
  
  
• 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. Unlocking is manual or automatic by applying the operating voltage.The housing cover must be removed to set the manual override.


• Adjustable angle of rotation Adjustable angle of rotation with mechanical end stop. The housing cover must be removed to set the angle of rotation.


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

•     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(lmax 20 A @ 5 ms)
•     Auxiliary switch2 x SPDT, 1 mA ... 3 (0.5) A, AC 250 V(1 x fix 10% / 1 x adjustable 10 ... 90%)
•     ConnectionMotor Cable 1 m, 4 x 0.75 mm2 Auxiliary switch Cable 1 m, 6 x 0.75 mm2
 •    Functional data Torque Motor Min. 10 Nm @ nominal voltage Spring return Min. 10 Nm
•     ControlControl signal Y DC 0 … 10 V, input impedance 100 k Operating range DC 2 … 10 V
•     Position feedback (measuring voltage U)DC 0.5 … 10 V, max. 0.5 mA
•     Position accuracy±5%
•     Direction of rotation Motor Reversible with switch Spring return  /L (ccw)
•     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
•     Safety Protection classIII Safety extra-low voltageUL Class 2 Supply
•     Degree of protectionIP66NEMA 4, UL Enclosure Type 4
•     EMC Low-voltage directiveCE according to 2004/108/EC CE according to 2006/95/EC 
•     CertificationCertified to IEC/EN 60730-1 and IEC/EN 60730-2-14cULus according to UL 60730-1 and UL 60730-2-14A and CAN/CSA E60730-1:02
•     Mode of operationType 1.AA.B
•     Rated impulse voltage Actuator 0.8 kV  Auxiliary switch 2.5 kV
•     Control pollution degree 4
•     Ambient temperature –30 ... +50°C
•     Non-operating temperature –40 ... +80°C
•     Ambient humidity100% r.h.
•     Maintenance Maintenance-free
•     Dimensions / Weight Dimensions See «Dimensions» on page 3
•     Weight Approx. 5.0 kg