IPC Main Group
H01H 29/00 Switches having at least one liquid contact
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
8 direct subcodes
Child Classifications
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- H01H 29/02 Details
- H01H 29/16 operated by dipping solid contact into stationary contact liquid
- H01H 29/18 with level of surface of contact liquid displaced by non-electrical contact-making plunger
- H01H 29/2 operated by tilting contact-liquid container
- H01H 29/26 with level of surface of contact liquid displaced by centrifugal action
- H01H 29/28 with level of surface of contact liquid displaced by fluid pressure
- H01H 29/3 with level of surface of contact liquid displaced by expansion or evaporation thereof
- H01H 29/32 with contact made by a liquid jet, e.g. earthing switch with contact made by jet of water