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SM A-SR • Actuators 20Nm modulating 0-10V

Servomotor for air volume control dampers of up to 4 m² depending on the type of air valve and the pressure on the valves. Simple direct mounting on the damper axe with a universal spindle clamp, supplied with an anti-rotation strap to prevent the actuator from rotating.

Brand

  • Belimo

Application

  • Dampers

Specifications

  • Torque 20 Nm
  • Nominal Voltage SM 230A-SR 230 V AC
  • Nominal Voltage SM 24A-SR 24 V AC/DC
  • Control: modulating standard control signal DC 0-10V, position feedback DC 2-10V. The measuring voltage U allows the damper position (0-100%) to be electrically indicated and serves as a follow-up control signal for other actuators

Accessoires

  • Auxiliary switchs, type S1A (1) or S2A (2)
  • Shaft extension, type AV8-25
  • Positioners, type SGA24 / SGF24

Articles

Article selection assistant
L1 (Exterior) [mm]
H1 (Exterior) [mm]
Article number Type L1 (Exterior) [mm] H1 (Exterior) [mm] E-shop
A080201170170 VK 170 X 170 170 170
A080201200200 VK 200 X 200 200 200
A080201240240 VK 240 X 240 240 240
A080201290290 VK 290 X 290 290 290
A080201355355 VK 355 X 355 355 355
A080201390390 VK 390 X 390 390 390
A080201440440 VK 440 X 440 440 440
A080201490490 VK 490 X 490 490 490
A080201540540 VK 540 X 540 540 540
A080201590590 VK 590 X 590 590 590
A080201670670 VK 670 X 670 670 670
A080201750750 VK 750 X 750 750 750
A080201840840 VK 840 X 840 840 840
A080201940940 VK 940 X 940 940 940
A080201A40A40 VK 1040 X 1040 1040 1040
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Technical data

  • Power consumption:
  1. In operation: 2 W @ nominal torque SM 230A-SR / 2 W @ nominal torque SM 24A-SR
  2. At rest: 0.2 W SM 230A-SR / 0.4 W SM 24A-SR
  3. For wire sizing: 4 VA SM 230A-SR / 4 VA SM 24A-SR
  • Control:
  1. Control signal Y: DC 0-10 V, typical input impedance 100 kΩ
  2. Working range: DC 2-10 V
  • Position feedback (Measuring voltage): DC 2-10 V, max. 1 mA
  • Position accuracy: +/- 5%
  • Direction of rotation: reversible with switch 0 or 1
  • Manual override: gearing latch disengaged with pushbutton, self-resetting
  • Angle of rotation: max. 95° , limited on both sides by means of adjustable, mechanical end stops. The actuator is overload proof; requires no limit switches and automatically stops when the end stop is reached
  • Running time: 150 s
  • Sound power level: max. 45 dB (A)
  • Position indication: mechanical, pluggable

  • Degree of protection: IP54 in any mounting position

Wiring diagram

Electrical diagram

Text for tender

Copy
  • The servomotor shall be of the modulating type with signal 0-10 V with torque of 20 Nm for direct mounting on the damper axe. With reversible direction of rotation, angle max 95° with mechanical end stops. Protection class II totally insulated, IP 54 in any mounting position EMC: CE according to 89/336/EEC, LVD 73/23/EWG.
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