Rating: 27.5kV, 2000A 20kA


General Information: Type MSTB

Megawin offers single pole vacuum circuit breakers and interrupters with magnetic actuator mechanism for AC Traction application.

  • It is fully type tested-E2 class
  • BIL suitable for 250kV peak / 95 kV RMS
  • 1,00,000 mechanical operations guaranteed


Applicable Standards

Complies with IEC 62271-100,IEC 60694,RDSO specification nos. TI/SPC/PSI/CB/0000 with A&C slip no.1-4, ETI/PII/167(9/97) with A&C slip No.1



  • AC Transaction application
  • Suitable for pole mounted application in metro railways
  • Suitable for line charging, cable charging, capacitor switching and phase opposition application


Product Features

  • Arc interruption is in vaccum, hence it is environment friendly and suitable for more than 100 shots at full short circuit
  • Usage of magnetic actuator mechanism guarantees 1,00,000 mechanical operations
  • Suitable for both structure & pole mounted applications
  • Equipment tested for 250 kVp impulse and 95 kVrms power frequency with stand voltage
  • Successfully cleared for line charging, cable charging, capacitor switching and out of phase breaking currrent