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Contactor used ceramic vacuum interrupter

  • Type: TJC-7.2/630(BGE511)

  • Vacuum Tube main technique parameter
  • No. Parameter name Unit Value
    1 Rated voltage kV 7.2
    2 Rated current A 630
    3 Rated frequency Hz 50
    4 Rated put through current kA 6.3
    5 Rated breaking current kA 5.04
    6 Limiting breaking current kA 6.3
    7 Rated short-time withstand current kA 6.3
    8 Rated short-time withstand voltage kV 32
    9 Rated lighting impulse voltage kV 60
    10 Mechanical life Time 500000
    11 Contact antomatic blocking ability N 70±20
    12 Force required to hold contacts open at full stork N 100±20
    13 Contact automatic blocking ability loop electrical resistance μΩ ≤60
    14 Contact-wear allowance tickness mm 3
    15 Shelf life year 20
    16 Internal gas pressure Pa ≤1.33×10-3