Contacts

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC ELEMENTS

Subclass:

ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES

Child Classifications

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• H01H 1/02 characterised by the material thereof
• H01H 1/06 characterised by the shape or structure of the contact-making surface, e.g. grooved
• H01H 1/12 characterised by the manner in which co-operating contacts engage
• H01H 1/5 Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
• H01H 1/56 Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
• H01H 1/58 Electric connections to or between contacts; Terminals
• H01H 1/6 Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces
• H01H 1/62 Heating or cooling of contacts
• H01H 1/64 Protective enclosures, baffle plates, or screens for contacts