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    OVERVOLTAGE PROTECTION DEVICES INCLUDING WAFER OF VARISTOR MATERIAL
    1.
    发明公开
    OVERVOLTAGE PROTECTION DEVICES INCLUDING WAFER OF VARISTOR MATERIAL 审中-公开

    公开(公告)号：EP3640958A1

    公开(公告)日：2020-04-22

    申请号：EP19214780.9

    申请日：2012-07-26

    申请人： RAYCAP IP ASSETS LTD

    发明人： XEPAPAS, Fotis ,  GIANNELAKI, Evaggelia ,  KOSTAKIS, Grigoris ,  POLITIS, Zafiris ,  SAMARAS, Kostas

    IPC分类号： H01C7/12 ,  H01T1/16

    摘要： An overvoltage protection device includes first (120) and second (130) electrically conductive electrode members and a varistor member (110) formed of a varistor material and electrically connected with each of the first and second electrode members. The overvoltage protection device includes both: an integral first fail-safe mechanism (161) configured to electrically short circuit the first and second electrode members about the varistor member when triggered by a first set of operating conditions; and an integral second fail-safe mechanism (141) configured to electrically short circuit the first and second electrode members about the varistor member when triggered by a second set of operating conditions different from the first set of operating conditions.