NRQ24A-SZ - Belimo Rotary Damper Actuator 8 Nm AC / DC 24 V

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The Belimo NRQ24A-SZ is a type of Actuator used in HVAC and ventilation systems.

This kind of Actuator rotates the damper in order to control it.

The force applied by the Torque of the NRQ24A-SZ is 8 Nm.

This Rotary Actuator needs to be supported by a power supply of 24Vac/Vdc.

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Consult the Belimo custom datasheet above or contact iacs via email for personalised assistance if you have queries about size or installation.

NRQ24A-SZ - Rotary actuator 8 Nm AC / DC 24 V

•    Running time motor 9 s / 90°
•    Operating range DC 2...10 V
•    Position feedback DC 2...10 V
•    Manual override temporary, permanent
•    Position indicator mechanical

Features
 

• Mode of operation The actuator is controlled with a standard modulating signal of DC 0 ... 10 V and moves to the position defined by the control signal. The measuring voltage U serves for the electrical display of the damper position 0 ... 100% and as slave control signal for other actuators.
• Adjustable angle of rotation Adjustable angle of rotation with mechanical end stops.
• Manual override Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked).


• Simple direct mounting Straightforward direct mounting on the ball valve with only one screw. The mounting position in relation to the ball valve can be selected in 90°<) steps.


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


• Position feedback U5 Operation of the ball valve is optimised by a limiting ring. This ring reduces the angle of rotation from 95° to 90° , i.e. U5 will deviate from Y by approximately 0.3 V when the valve is closed.


• Home position When the supply voltage is switched on for the first time, i.e. at commissioning or after pressing the «gear disengagement» switch, the actuator moves to the home position.
  The actuator then moves into the position defined by the control signal.

•     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 12 W @ nominal torque
•     At rest 1.5 W
•     For wire sizing 18 VA
•     Connection Cable 1 m, 4 x 0.75 mm2
•     Parallel connection Possible, note the performance data
•     Functional data Torque Motor Min. 8 Nm @ nominal voltage
•     Control Control signal Y Operating range DC 0 ... 10 V, input impedance 100 kΩ DC 2 ... 10 V
•     Position feedback (Measuring voltage) DC 2 ... 10 V, max. 0.5 mA
•     Position accuracy ±5%
•     Manual override Gearing latch disengaged with push-button, can be locked
•     Running time 9 s / 90° <)
•     Automatic adjustment of operating range and measuring signal U to match the mechanical angle of rotation Manual triggering of the adaption by pressing the «Adaption» button
•     Override control MAX (maximum position) = 100% MIN (minimum position) = 0%  ZS (intermediate position, only AC) = 50%
•     Sound power level Motor 52 dB (A)
•     Position indication Mechanical
•     Safety Protection class III Safety extra-low voltage
•     Degree of protection IP54 in any mounting position, UL/NEMA 2
•     EMC CE according to 2004/108/EC
•     Low-voltage directive CE according to 2004/108/EC
•     Certification cULus according to UL 60730-1A and UL 60730-2-14 and CAN/CSA E60730-01:02 Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14
•     Mode of operation Type 1 (EN 60730-1)
•     Rated impulse voltage 0.8 kV
•     Control pollution degree 3
•     Ambient temperature –30 ... +40 °C (no restrictions) ! +40 ... +50 °C (Caution: can only be used with restrictions. Please contact your Belimo representative.)
•     Non-operating temperature –40 ... +80°C
•     Ambient humidity 95% r.h., non-condensating
•     Maintenance Maintenance-free
•     �imensions / Weight Dimensions See «Dimensions» on page 3
•     Weight Approx. 1.8 kg