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Neptronic ST165S Actuators 70 in lb 8Nm


Product Description

Neptronic ST165S Actuators 70 in lb 8Nm

This Neptronic ST165S Actuators 70 in lb  8Nm Torque Actuator features 90-110 Seconds Rotation. With Feedback, 2 Position or 3 Point Floating Control. 120 VAC Power Required.

Neptronic ST165S Actuators 70 in lb 8Nm torque 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.

  • small dampers
  • fan coils
  • 1/4 turn valves
  • unit ventilators
  • VAV box control


  • 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).biniary switches (on model 20 & 80)

PDFNEP actuator selection guide

PDFData Sheet S Series Actuators.pdf

 PDFS Series Actuators Specs.pdf 

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