Measuring, Metering, Monitoring, and Analyzing Conventional and Alternative Electrical Energy

Medium Voltage Potential Transformer (Model PT3)


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  • Secondary Terminals are No. 10-32 screws with one lock washer & flat washer.
  • The core and coil assembly is encased in a plastic enclosure and vacuum encapsulated in polyurethane resin.
  • Thermal burden rating is for 120 volt secondaries.
  • 50Hz designs are available.
  • Indoor type
  • Fuses have 0.81″ or 1.0″ Dia. Caps and 4.25″ or 5″ clip centers.



0.3 WX, 0.6MY, 1.2Z at 100% rated voltage with 120V based ANSI burden. 0.6 WX 1.2 MY at 58% rated voltage with 69.3V based ANSI burden.

  • Frequency: 60Hz
  • Insulation Class: 5.6kV
  • Basic Impulse Level: 45kV BIL
  • Thermal Rating:
    600VA at 30°C Amb.
    400VA at 55°C Amb.
  • Approximate Weight: 24 lbs.