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  2. History of AC power plugs and sockets - Wikipedia

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

    Obsolete 125 V, 15 A / 250 V, 10 A duplex outlet. A patent for the obsolete "wye" American plug and socket was filed in 1915 under U.S. patent 1,179,728. [21] It predated the NEMA sockets and plugs. The plugs and sockets used in countries such as Argentina, Australia and China are based on this type and are physically compatible.

  3. AC power plugs and sockets - Wikipedia

    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" describes four sizes of plug rated at 2 A, 5 A (Type D), 15 A (Type M) and 30 A. The plugs have three round pins arranged in a triangle, with the larger top pin being the earthing pin.

  4. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    Tamper-resistant GFCI duplex receptacle type 5-20RA, which can take 5-15 and 5-20 grounding plugs and 1-15 non-grounding plugs. These versions of the 5-15R or 5-20R receptacle are residual-current devices, and have "Test" and "Reset" buttons (and sometimes an indicator light which may be normally on or normally off per the vendor's design). In ...

  5. AC power plugs and sockets: British and related types - Wikipedia

    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 ...

  6. Duplex receptacle - Wikipedia

    en.wikipedia.org/?title=Duplex_receptacle&...

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  7. AS/NZS 3112 - Wikipedia

    en.wikipedia.org/wiki/AS/NZS_3112

    The 15 A outlet has a wider earth pin than the 10 A outlet. The 20 A outlet has a wider earth pin and wider Line and Neutral pins. The 25 A outlet has an inverted L-shaped earth pin and wider Line and Neutral pins. The 32 A outlet has a sideways U-shaped earth pin and wider Line and Neutral pins.

  8. Hubbell Incorporated - Wikipedia

    en.wikipedia.org/wiki/Hubbell_Incorporated

    One of the most successful and familiar today, was the duplex receptacle which is still found everywhere that electrical power is used. In 1901, Hubbell published a 12-page catalogue that listed 63 electrical products of his company's manufacture, and four years later he incorporated his enterprise as Harvey Hubbell, Incorporated.

  9. Receptacle - Wikipedia

    en.wikipedia.org/wiki/Receptacle

    Automobile auxiliary power outlet, formerly known as cigarette lighter receptacle, a type of DC power outlet; Duplex receptacle, a part of a NEMA connector (a type of mains electricity connection) Electric receptacle, a type of AC power outlet; A "female connector" or a "jack" (see electrical connector)