KD4190 Digital three phase sequence indica

It can be used for indicating the phase sequence and checking the open phase of three phase AC power.



  • Can be used frequency range from 40Hz to 60Hz voltage from 100V to 600V of three phase AC power
  • When opening phase, the LED will turn off with buzzing.Timewise arrow and sequence of LED turning on indicate the three AC power phase.
  • No metal parts outside,good insulate capability for safety.
  • Small size and light weight for carrying easily.


Measuring Range Frequency :40Hz~60Hz Voltage:100V~600V
Insulation Value ≥50MΩ (1000V)
Withstand Voltage AC2kV   50Hz    1min
Operating Temperature&Humidity -10~+40 degree;   less than85% RH
Dimensions 115mm×70mm×40mm
Weight ≈300g
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