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    Foster City, CA 94404, USA

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Rail vacuum circuit breakers

Rail Vacuum Circuit Breakers are usually multi-functional AC vacuum circuit breakers combined with several other functions such as Disconnect Switches, Earthing Switches or Pantograph Interlocking valve making them a unique and small unit. Small size and light weight make vacuum circuit breakers perfect solution for rolling stock running on 15 kV or/and 25 kV railway networks. In addition to operating frequency of 50 Hz and 60 Hz sometimes 16.7 Hz frequency is also required. Because of rail vacuum circuit breaker location on the train and wide operating temperatures on the train routes temperature from -50 C to + 70 C is also one of the requirements.

Vacuum interrupters for Mobile Railway applications

Rated Voltage Rated lightning impulse voltage Power frequency withstand voltage Rated Current Short circuit breaking current Short circuit making current VI Type
kV kV kV A kA kA
18/36 170 70(16.6Hz)
at 18kV
at 36kv
at 18kA