The Electronic Phase Relay is designed to prevent the three phase consumers of a wrong phase order of their power supply.


Technical data:
  • Protect the electrical consumers against overloading.
  • Restore the power supply to the consumer in 70 seconds if the right phase order occurs.
  • Protect the electrical three phase motors against inversion of their revolving direction.
  • Equipped with a red light indication for the emergency mode and a green one for the regular consumer operation mode.
  • Warranty period of 24 months.


Have a look at the complete “User’s guide” of the Electronic phase relay FZ-1
(.PDF 192kB)