H02H 3/16 responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H3/26 )
Introduced: September 1968
Title
Titles differ between systems:
IPC: responsive to fault current to earth, frame or mass
CPC: responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H3/26 )
Full Title
Full titles differ between systems:
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection > responsive to fault current to earth, frame or mass
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection (specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H7/00; systems for change-over to standby supply H02J9/00 ) > responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H3/26 )
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
IPC defines codes here since 1980.
Child Classifications
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- H02H 3/17 by means of an auxiliary voltage injected into the installation to be protected since 1980 IPC+CPC Available in IPC and CPC