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  2. History of AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/History_of_AC_power_plugs...

    U.S. patent 774,250.The first US power plug and socket dated 1904. Several early American electrical plug and socket arrangements were invented by Harvey Hubbell.On 26 February 1903 he filed two patent applications featuring 2-pin plugs and adaptors for using his plugs with existing designs of lamp sockets and wall receptacles.

  3. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    AC power plugs and sockets connect devices to mains electricity to supply them with electrical power. A plug is the connector attached to an electrically-operated device, often via a cable. A socket (also known as a receptacle or outlet ) is fixed in place, often on the internal walls of buildings, and is connected to an AC electrical circuit.

  4. AC power plugs and sockets: British and related types

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets:...

    BS 546, Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors for AC (50–60 Hz) circuits up to 250 V is an older British Standard for three-pin AC power plugs and sockets. Originally published in April 1934, it was updated by a 1950 edition which is still current, [1] with eight amendments up to 1999. BS 546 is also the ...

  5. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    NEMA connectors are power plugs and sockets used for AC mains electricity in North America and other countries that use the standards set by the US National Electrical Manufacturers Association. NEMA wiring devices are made in current ratings from 15 to 60 amperes (A), with voltage ratings from 125 to 600 volts (V).

  6. Harvey Hubbell - Wikipedia

    en.wikipedia.org/wiki/Harvey_Hubbell

    His best-known inventions are the U.S. electrical plug [1] and the pull-chain light socket. [2] In 1888, at the age of 31, Hubbell quit his job as a manager of a manufacturing company and founded Hubbell Incorporated in Bridgeport, Connecticut, a company which is still in business today, still headquartered near Bridgeport. Hubbell began ...

  7. Schuko - Wikipedia

    en.wikipedia.org/wiki/Schuko

    It is a registered trademark [1] referring to a system of AC power plugs and sockets that is defined as "CEE 7/3" (sockets) and "CEE 7/4" (plugs). A Schuko plug features two round pins of 4.8 mm diameter (19 mm long, centres 19 mm apart) for the line and neutral contacts, plus two flat contact areas on the top and bottom side of the plug for ...

  8. Category:Mains power connectors - Wikipedia

    en.wikipedia.org/wiki/Category:Mains_power...

    AC power plugs and sockets: British and related types ... Electrical wiring in Hong Kong; Europlug; G. GOST 7396; H. History of AC power plugs and sockets; I. IEC ...

  9. SN 441011 - Wikipedia

    en.wikipedia.org/wiki/SN_441011

    SN 441011, until 2019 SEV 1011, [1] is the Swiss national standard for AC power plug for domestic use and similar purposes. The plug SN 441011 Type 12 and the socket SN 441011 Type 13 are also known internationally as Type J , and fits in all Swiss sockets.