IPC Subgroup
H01H 33/64 wherein the break is in gas
Introduced: September 1968
Last revised: January 2006
Full Title
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid > wherein the break is in gas
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
1 direct subcode
Child Classifications
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- H01H 33/65 wherein the break is in air at atmospheric pressure, e.g. in open air