3-phase voltage, phase sequence, phase loss relay

K8AK-PM monitors overvoltages, undervoltages, phase sequence and phase loss for 3-phase, 3-wire or 4-wire power supplies, in one unit. This relay features a switch setting for 3-phase, 3-wire or 3-phase, 4-wire power supply.


  • Worldwide power specifications supported by one unit
  • Phase sequence, phase loss: Operation reaction time 0.1 s maximum
  • Overvoltages or undervoltages: Operation time setting from 0.1 to 30 s
  • Relay warning status can easily be monitored using the LED indicator
  • Easy wiring with ferrules

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