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Neptronic ST020S Control Actuators 70 8Nm


Product Description

Neptronic S020S – 70 Torque Actuator. 90-110 Seconds Rotation. With Mechanical Auxiliary Switches. 2 Position or 3 Point Floating Control. 24 VAC or 30 VDC Power Required.

These compact quarter turn actuators may be directly coupled to either a 1/2 inch round or 3/8 inch square jack shaft or remotely mounted using an adaptor kit. All actuators are bi-directional. Enerdrive actuators are also bi-directional under fail safe conditions. The stroke may be limited to less than 90 deg mechanically.

Used for small dampers, unit ventilators, 1/4 turn valves, VAV box control and fan coils. 90-110  sec rotation time.


  • Mounts easy on round and Square shaft (with option -8)
  • External clutch for manual adjustments .
  • Maintenance free
  • Position indicator.
  • Fail safe by Enerdrive System1 (on model 60, 65, &80).
  • Auxiliary switches (on model 20 & 80)

PDFData Sheet S Series Actuators.pdf  PDFS Series Actuators Specs.pdf 

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