Actuators SA-UW and SAR-UW

A sophisticated sealing system combined with excellent corrosion protection properties qualify AUMA actuators for underwater use.


Double sealed cable glands at the electrical connection safely prevent any ingress of water. Inner seals at all housing covers, sometimes coming in pairs, as well as a solid shaft made of stainless steel complete the universal concept.


Design features SA-UW

  • Torque range from 10 Nm to 4,000 Nm
  • Output speeds from 4 to 180 rpm
  • Magnetic limit and torque transmitter
  • 3-phase AC motors

Design features SAR-UW

  • Torque range from 15 Nm to 4,000 Nm
  • Modulating torque range from 15 Nm to 1,600 Nm
  • Max. number of starts 1,200 c/h
  • Output speeds from 4 to 90 rpm
  • Magnetic limit and torque transmitter
  • 3-phase AC motors
  • Actuator controls separately mounted on wall bracket

Ambient conditions

  • High enclosure protection for continuous underwater use, 15 m max. head of water
  • High grade corrosion protection (Im1, Im2, Im3)
  • Ambient temperature range –30 °C to +70 °C


  • Ready-made cable set
  • Electrical connection via AUMA plug/socket connector
  • Output drive types according to DIN and EN ISO standards