DIFF Subgroup
H01H 33/72 having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
Introduced: September 1968
Full Title
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid > having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01H 33/73 wherein the break is in air at atmospheric pressure, e.g. in open air IPC+CPC Available in IPC and CPC
- H01H 33/74 wherein the break is in gas (in air at atmospheric pressure H01H33/73) IPC+CPC Available in IPC and CPC