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NKQ24A-MF - CPO rotary actuator (with condenser) 6 Nm

On request
£320.23 £384.28

NKQ24A-MF - CPO rotary actuator (with condenser) 6 Nm

•   AC / DC 24 V, 4 s, Open/Close
•   Running time emergency setting position 4 s
•   Power-Off-Position adjustable
•   IP 54, Manual override by means of push-button
•   Connection PVC cable 1m
•   Direction of rotation reversible (right/left)
•   Angle of rotation limit. mechanical integral
•   Spindle driver universal spindle clamp


More Information


  • Mode of operation The actuator moves the air damper to the desired operating position at the same time as the integrated capacitors are loaded. Interrupting the supply voltage causes the air damper to be rotated back into the emergency setting position by means of stored electrical energy.The actuator is controlled with a standard modulating signal of DC 0 ... 10 V and travels to the position defined by the control signal. The measuring voltage U serves for the electrical display of the damper position 0 ... 100%

  • Pre-charging time (start up) The capacitor actuators require a pre-charging time. This time is used for charging the capacitors up to a usable voltage level. This ensures that, in the event of a voltage interruption, the actuator can be moved at any time from its current position into the preset emergency setting position (POP).The duration of the pre-charging time depends mainly on the following factors:– Duration of the voltage interruption– PF delay time (bridging time).
    Calculation example:
    In the event of a voltage interruption of 3 days and a set bridging time (PF) of 5 s, the actuator requires a pre-charging time of 14 s (see graphic above) after the voltage has been reconnected. 

  • Delivery condition (capacitors) The actuator is completely discharged after delivery from the factory, which is why the actuator requires approximately 15 s pre-charging time before initial commissioning in order to bring the capacitors up to the required voltage level.
  • Parameterisable actuators The factory settings cover the most common applications. Input and output signals and other parameters can be altered with the MFT-P BELIMO Service Tool or with the ZTH-GEN adjustment and diagnostic tool.

  • 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 override with push button possible (the gear is disengaged for as long as the button remains pressed down).

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

  • Home position / Start The spindle clamp of the actuator is set ex-works to 0°.After the supply voltage has been applied, the actuator moves into the position defined by the control signal.

  • Direction of rotation switch When actuated, the direction of rotation switch changes the running direction in normal operation.The direction of rotation switch has no influence on the emergency setting position (POP) which has been set.

  • Emergency setting position (POP)rotary button The «Emergency setting position» rotary button can be used to adjust the desired emergency setting position (POP) between 0 and 100% in 10% increments.The rotary button is in reference only to the adapted angle of rotation range between 30 and 95°. No set Min or Max values are observed.In the event of a voltage interruption, the actuator will move into the selected emergency setting position, taking into account the set bridging time.

  • Settings The rotary button must be set to the «Tool» position for retroactive settings of the emergency setting position with the BELIMO service tool MFT-P. Once the rotary button is set back to the range 0 … 100%, the manually set value will have positioning authority

  • Bridging time (PF) Voltage interruptions can be bridged up to a maximum of 5 s.In the event of a voltage interruption, the actuator will remain stationary in accordance with the set bridging time. If the voltage interruption is greater than the set bridging time, then the actuator will move into the selected emergency setting position (POP).The bridging time set ex-works is 0 s. This can be modified at the site of operations with the use of the BELIMO service tool MFT-P.

  • Settings The rotary button must not be set to the «Tool» position!Only the values need to be entered for retroactive adjustments of the bridging time with the BELIMO service tool MFT-P.
  • Adjustable angle of rotation Adjustable angle of rotation with mechanical end stops.
                                                         A minimum permissible angle of rotation of 30° must be allowed for.

  • Adaption and synchronisation With the adaption, the upper and lower spindle end stops are detected and stored in the actuator. The detection of the mechanical end stops makes it possible to have a gentle approach of the end positions, thus protecting the actuator mechanics.During synchronization, the actuator moves into home position for angle referencing. This ensures a correct position modulation.

Manuals & Datasheets
Technical Information

•     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 11 W @ nominal torque At rest <3 W For wire sizing <22 VA (lmax 20 A @ 5 ms)
•     Connection Cable 1 m, 4 x 0.75 mm2
•     Parallel operation Yes (note the performance data)
•     Functional data Torque Motor Min. ≥6 Nm Inhibiting torque ≥6 Nm
•     Control Control signal Y DC 0 … 10 V, input impedance 100 k� Operating range DC 0.5 ... 10 V
•     Position feedback (Measuring voltage U) DC 0.5 ... 10 V, max. 0.5 mA
•     Setting emergency position (POP) 0% (POP rotary button end stop, left)
•     Bridging time (PF) 0 s
•     Position accuracy ±5%
•     Direction of rotation Motor Reversible with switch  Emergency setting position  / Reversible with switch 0 ... 100%, Adjustable in increments of 10%
•     Direction of rotation Y = 0 V At switch position 1 or 0 , respectively
•     Manual override Gearing latch disengaged with push button   
•     Angle of rotation Max. 95° , can be limited at both ends with adjustable mechanical end stops
•     Angle of rotation limiting min. 30°<)
•     Running time Standard operation 4 s / 90°, Emergency setting position 4 s @ 0 ... 50°C
•     Automatic adjustment of running time, operating range and measuring signal U to match the mechanical angle of rotationManual triggering of the adaption        by pressing the «Adaption» button
•     Override control MAX (maximum position) MIN (minimum position)ZS (intermediate position, only AC)= 100%= 0%= 50%
•     Sound power level Standard operation ≤60 dB (A) @ 4 s running time ≤42 dB (A) @ 20 s running time, Emergency setting position ≤60 dB (A
•     Position indication Mechanical, pluggable
•     Protection class III Safety extra-low voltageUL Class 2 Supply
•     Degree of protection IP54NEMA 2, UL Enclosure Type 2
•     EMC CE according to 2004/108/EC
•     Certification Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14cULus according to UL 60730-1A and UL 60730-2-14 and CAN/CSA E60730-1:02
•     Mode of operation Type 1.AA
•     Rated impulse voltage 0.8 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 See «Dimensions» on page 8
•     Weight Approx. 1.1 kg



Manufacturer Belimo