• For use on 90 to 600 volts, 3ø, 50/60 hertz
  • Detect and identify an open phase
  • Five indicating lamps
  • No moving parts
  • 32 to 104°F (0 to 40°C) operating temperature

What's in the Box

  • Canvas carrying case


The Megger PSI700A phase sequence indicator is simple to use. The operator connects three leads to the system and a lamp will instantly indicate either ABC clockwise rotation or CBA counter-clockwise rotation. Three lamps will light to indicate that all phase voltages are present. If a phase is open, only one lamp will light and identify the open phase.