Substation EquipmentMV Vacuum Switch

MV Vacuum Switch

Our MV Vacuum Switch has the best capability for electric furnace that have to be opened and closed many times with easiness of maintenance and reliable safety.


  • Superior breaking performance
    By using the vacuum interrupter, arcing time is short and breaking performance is satisfactory.
  • Longer service life
    Longer service life is achieved by adopting long life vacuum interrupter and simple constant excitation mechanism.
  • Easiness of maintenance and check
    Until the service life, the required maintenance is only lubrication once or twice a year.
  • High stability and safety
    Since the main body and surge absorber are installed in metal-enclosed box, stability is maintained even in dusty conditions. Also oil-free, it is safe without the risk of fire.

Main ratings

Rated voltage [kV] 24
Rated normal current [A] 600 1200 2000
Maximum breaking capacity [MVA] 250
Rated short-time current [kA] 25(2sec)
Electrical life [times operation] 150,0 100,000 60,000
Mechanical life [times operation] 300,000


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