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IPC Main Group
H02H 9/00

Emergency protective circuit arrangements for limiting excess current or voltage without disconnection

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
ELECTRICITY
Class:
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
Subclass:
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

Related Keywords

circuits for DIVERTING of surgeselectric protective circuits for LIMITING excess current or voltage

3 direct subcodes

Child Classifications

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  • H02H 9/02 responsive to excess current
  • H02H 9/08 Limitation or suppression of earth fault currents, e.g. Petersen coil