40 KA Retrofit Vacuum Circuit Breakers

Our “roll out” - “roll in” circuit breakers can replace Brush VSI 40 kA oil circuit breakers, with minimum system down time.

Operation of the Retrofit Vacuum Circuit Breaker remains the same:

  1. Push into housing.
  2. Set the interlocks.
  3. Raise circuit breaker into selected position.

Technical Data

  • Rated Voltage 12 kV
  • Rated Short Circuit Breaking Current 40 kA
  • Rated Normal Current 800 and 2000A
  • Rated Short Time Current 40 kA for 3 seconds
  • Rated Peak Make 100 kA
  • Enhanced peak make of 115 kA
  • Rated 75 kV Basic Impulse Level
  • Technical Specification
  • IEC 62271—1, ED. 1.0, 2007 - 10
  • IEC 62271—100, Ed 2.0, 2008—04
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