Single phase by Undercurrent – PS-R

Without requiring any external detectors like level electrodes, it monitors the load of the motor and stops it before an expensive breakdorwn occurs.

  • Without requiring level sensor to detect dry running.
  • For single phase motors from 3 to 16 A and over. Cable feed through.
  • Precise motor heating and cooling memory, reproduces its thermal image.
  • Visual indication of tripping cause.
  • Adjustable reset time for I<.


Some of the most common applications in domestic, industrial and agricultural installations are as follow:

  • Submersible pumps: water supply, irrigation, well dewatering, petrol stations…
  • Surface pumps: sewage treatment plants, swimming pools, pressure sets, fire-fighting equipment…
  • Other typical applications that require monitoring: belt drives, ventilators, conveyor belts…

PS 11-R

PS 16-R

Without Level Sensors

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Protection functions

  • Overload
  • Undercurrent
  • Overvoltage