ENSEMBLE DE PROTECTION CONTRE LES SURTENSIONS
    1.
    发明公开
    ENSEMBLE DE PROTECTION CONTRE LES SURTENSIONS 有权
    保护,禁止过电压组合

    公开(公告)号:EP2513942A1

    公开(公告)日:2012-10-24

    申请号:EP10790583.8

    申请日:2010-11-16

    IPC分类号: H01H83/10 H02H9/04 H01H71/20

    摘要: The invention relates to a protection assembly including a protection module (20) that comprises at least one varistor (1) having an operation power threshold. A cutoff apparatus (21), connected to the protection module (20), includes a release mechanism (24), the means (33) for mechanically actuating said module being interconnected to the release means (24) for opening contacts. The disconnection means comprises a thermal disconnection means that includes: a first power threshold (S1) for disconnecting electrical currents less than a first current level (11); a second power threshold (S2) for disconnecting currents between a first and second intermediate current level (12A, 12B); and a third power threshold (S3) for disconnecting currents greater than a third current level (13). The three disconnection thresholds are less than the operation power threshold.