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  • H01H83/00
    		•  Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current HB CC 5G030
  • H01H83/02
    		•  .operated by earth fault currents (H01H 83/14 takes precedence) HB CC 5G030
  • H01H83/02@A
    		•  Rotating contacts HB CC 5G030
  • H01H83/02@B
    		•  Vertically opposing contacts HB CC 5G030
  • H01H83/02@C
    		•  Leaf spring contacts HB CC 5G030
  • H01H83/02@D
    		•  Assembling structures HB CC 5G030
  • H01H83/02@E
    		•  Related to circuits HB CC 5G030
  • H01H83/02@F
    		•  Indicating or alarms HB CC 5G030
  • H01H83/02@G
    		•  Outlets HB CC 5G030
  • H01H83/02@H
    		•  Detecting blocks HB CC 5G030
  • H01H83/02@Z
    		•  Others HB CC 5G030
  • H01H83/04
    		•  ..with testing means for indicating the ability of the switch or relay to function properly HB CC 5G030
  • H01H83/06
    		•  .operated by current falling below a predetermined value HB CC 5G030
  • H01H83/08
    		•  .operated by reversal of dc HB CC 5G030
  • H01H83/10
    		•  .operated by excess voltage, e.g. for lightning protection HB CC 5G030
  • H01H83/12
    		•  .operated by voltage falling below a predetermined value, e.g. for no-volt protection HB CC 5G030
  • H01H83/14
    		•  .operated by imbalance of two or more currents or voltages, e.g. for differential protection [2006.01] HB CC 5G030
  • H01H83/16
    		•  .operated by abnormal ratio of voltage and current, e.g. distance relay HB CC 5G030
  • H01H83/18
    		•  .operated by abnormal product of, or abnormal phase angle between, voltage and current, e.g. directional relay HB CC 5G030
  • H01H83/20
    		•  .operated by excess current as well as by some other abnormal electrical condition HB CC 5G030
  • H01H83/22
    		•  ..the other condition being imbalance of two or more currents or voltages [2006.01] HB CC 5G030
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