SMQ24A-SR - Belimo Damper actuator 16 Nm, 7.0 s, 95° AC / DC 24 V, modulating

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The Belimo SMQ24A-SR is a kind of Actuator used to manage dampers in HVAC applications and systems.

To control the damper, this kind of Actuator turns it by Rotary motion.

The Torque used by the SMQ24A-SR is 16 Nm.

This Belimo Actuator requests 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.

The Belimo SMQ24A-SR is a damper actuator used to modify air dampers in ventilation and air-conditioning systems.

A rotational motion is generated by this sort of actuator.

The control type of the SMQ24A-SR is modulating.

The torque force is 16 Nm.

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.


• 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 is pressed or remains locked).
  


• Adjustable angle of rotation Adjustable angle of rotation with mechanical end stops.A minimum permissible angle of rotation of 30°<) must be allowed for.


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


• Home position The first time the supply voltage is switched on, i.e. during initial startup, the actuator carries out an adaptation. After pressing the «gear disengagement» pushbutton, the actuator moves to the home position at the end stop.


• Adaption and synchronisation During adaptation, the upper and lower spindle end stop is recorded and deposited in the actuator. Detection of the mechanical end stops enables a gentle approach to the end positions and thus protects the actuator mechanism.During synchronisation, the actuator moves to the home position for angle referencing. This ensures correct position regulation.

•     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 15 W @ nominal torque At rest 2 W For wire sizing 26 VA (I max. 20 A @ 5 ms)
•     Connection Cable 1 m, 4 x 0.75 mm2
•     Functional data Torque (nominal torque) Min. 16 Nm @ nominal voltage
•     Control Control signal Y DC 0 ... 10 V, input impedance 100 k� Operating range DC 2 ... 10 V
•     Position feedback (Measuring voltage) DC 2 ... 10 V, max. 0.5 mA
•     Position accuracy ±5%
•     Direction of rotation Reversible with switch 0 / 1
•     Direction of motion at Y = 0 V In switch position 0 resp. 1 
•     Manual override Gearing latch disengaged with pushbutton, can be locked
•     Angle of rotation Max. 95°<) , can be limited at both ends withadjustable mechanical end stops
•     Angle of rotation limiting min. 30°<)
•     Running time 7 s / 90°<)
•     Automatic adjustment of operating range and Manual triggering of the adaption by pressing measuring signal U to match the mechanical  the «Adaption» button or with the PC-Tool angle of rotation
•     Override control MAX (maximum position) = 100% MIN (minimum position) = 0% ZS (intermediate position, only AC) =50%
•     Sound power level Max. 52 dB (A)
•     Position indication Mechanical, pluggable
•     Negative torque ≤50% from nominal torque (Caution: can only be used with restrictions. Please contact your Belimo representative.)
•     Safety Protection class III Safety extra-low voltageUL Class 2 Supply
•     Degree of protection IP54 NEMA 2, UL Enclosure Type 2
•     EMC CE according to 2004/108/EC 
•     Certification Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14 cULus according to UL 60730-1A and UL 60730-2-14 and CAN/CSA E60730-1:02
•     Mode of operation Type 1
•     Rated impulse voltage 0.8 kv
•     Control pollution degree 3 
•     Ambient temperature –30 ... +40°C +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.
•     Maintenance Maintenance-free
•     Dimensions / Weight Dimensions See «Dimensions» on page 6
•     Weight Approx. 970 g