Support for TestGuy Classic is scheduled to end later this year. Switch to BETA before December!

Circuit Breaker MVA Calculator
Enter the available circuit breaker information to generate MVA rating.
Formulas
  • MVA

    kA * kV * 1.732

  • MVA

    (A * V *1.732) / 1,000,000

Notes
  • Consult equipment manufacturer's literature to obtain a true MVA rating.
  • Standard MVA ratings: 250, 300, 350, 500, 750, 1000