ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)

Introduced: September 1968

Description

H01H covers electric switches, relays, selectors, and emergency protective devices—the fundamental electromechanical and electromagnetic components used to control, interrupt, or route electrical circuits. This subclass includes mechanical switches (push-button, toggle, rotary), electromagnetic relays, contactors, solenoid-operated devices, and circuit protection equipment such as thermal and magnetic overload devices. Applications span industrial control systems, household appliances, automotive electrical systems, and power distribution networks. Related switching technologies implemented in semiconductor form (transistors, diodes) are classified separately under H01L.

Title

Titles differ between systems:

IPC: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES

CPC: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)

Full Title

Full titles differ between systems:

IPC:

ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES

CPC:

ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)

Of 68 combined children, 47 exist in both systems.

21 codes are CPC-only extensions.

Note: 21 CPC extensions are marked as secondary classification only.

18 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

H01H 1/00 Contacts (liquid contacts H01H29/04) +5 CPC IPC+CPC Available in IPC and CPC
H01H 11/00 Apparatus or processes specially adapted for the manufacture of electric switches (processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards, H01H13/88) +8 CPC IPC+CPC Available in IPC and CPC
H01H 13/00 Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch (wherein the operating part is flexible H01H17/00) IPC+CPC Available in IPC and CPC
H01H 15/00 Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch +1 CPC IPC+CPC Available in IPC and CPC
H01H 17/00 Switches having flexible operating part adapted only for pulling, e.g. cord, chain IPC+CPC Available in IPC and CPC
H01H 19/00 Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand +3 CPC IPC+CPC Available in IPC and CPC
H01H 21/00 Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand (tumbler or rocker switches H01H23/00; switches having an operating part movable angularly in more than one plane H01H25/04) IPC+CPC Available in IPC and CPC
H01H 2201/00 Contacts 2nd only +10 CPC CPC only CPC only
H01H 2203/00 Form of contacts 2nd only +18 CPC CPC only CPC only
H01H 2205/00 Movable contacts 2nd only +8 CPC CPC only CPC only
H01H 2207/00 Connections 2nd only +18 CPC CPC only CPC only
H01H 2209/00 Layers 2nd only +13 CPC CPC only CPC only
H01H 2211/00 Spacers 2nd only +6 CPC CPC only CPC only
H01H 2213/00 Venting 2nd only +3 CPC CPC only CPC only
H01H 2215/00 Tactile feedback 2nd only +10 CPC CPC only CPC only
H01H 2217/00 Facilitation of operation; Human engineering 2nd only +23 CPC CPC only CPC only
H01H 2219/00 Legends 2nd only +4 CPC CPC only CPC only
H01H 2221/00 Actuators 2nd only +25 CPC CPC only CPC only
H01H 2223/00 Casings 2nd only +15 CPC CPC only CPC only
H01H 2225/00 Switch site location 2nd only +15 CPC CPC only CPC only