IPC Subgroup
H01H 37/74 Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
Introduced: September 1968
Last revised: January 2006
Full Title
Thermally-actuated switches > Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
Scope Notes
Application references: For the electrical protection of electric lines or electric apparatus
1 direct subcode
Child Classifications
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- H01H 37/76 Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material