Means for extinguishing or preventing arc between current-carrying parts

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of switching devices, not covered by groups > Means for extinguishing or preventing arc between current-carrying parts

CPC:

Details of switching devices, not covered by groups H01H1/00 - H01H7/00 > Means for extinguishing or preventing arc between current-carrying parts

Of 10 combined children, 7 exist in both systems.

3 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

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H01H 2009/305 2nd only CPC only CPC only
H01H 2009/307 2nd only CPC only CPC only
H01H 9/302 CPC only CPC only
H01H 9/32 Insulating body insertable between contacts IPC+CPC Available in IPC and CPC
H01H 9/34 Stationary parts for restricting or subdividing the arc, e.g. barrier plate +6 CPC IPC+CPC Available in IPC and CPC
H01H 9/38 Auxiliary contacts on to which the arc is transferred from the main contacts (using arcing-horns H01H9/46) +2 CPC IPC+CPC Available in IPC and CPC
H01H 9/40 Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc IPC+CPC Available in IPC and CPC
H01H 9/42 Impedances connected with contacts IPC+CPC Available in IPC and CPC
H01H 9/44 using blow-out magnet +2 CPC IPC+CPC Available in IPC and CPC
H01H 9/46 using arcing horns (using blow-out magnet H01H9/44) +1 CPC IPC+CPC Available in IPC and CPC

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

Class H01,2013–2023, worldwide · Source: EPO PATSTAT