for static converters or rectifiers

Introduced: September 1968

Full Title

Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions > for converters; for rectifiers > for static converters or rectifiers

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

IPC defines codes here since 1974.

Child Classifications

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H02H 7/1203 +1 CPC CPC only CPC only
H02H 7/1209 CPC only CPC only
H02H 7/1213 CPC only CPC only
H02H 7/1216 CPC only CPC only
H02H 7/122 for inverters, i.e. DC/AC converters since 1974 +3 CPC IPC+CPC Available in IPC and CPC
H02H 7/125 for rectifiers since 1974 +3 CPC IPC+CPC Available in IPC and CPC