The Type A electrical plug adapter (or flat blade attachment plug) is an ungrounded plug with two flat parallel pins. Although the American and Japanese plugs appear identical, the neutral pin on the American plug is wider than the live pin, whereas on the Japanese plug both pins are the same size. As a result, Japanese plugs can be used in the US but often not the other way around.

The Type B electrical adapter plug has two flat parallel pins and a round grounding (or earth) pin. The earth pin is longer than the other two so that the device is grounded before the power is connected. As with the type A plugs, the American and Japanese versions vary slightly.

The pins on Type A and Type B plugs have a hole near the tip that fits into ‘bumps’ found on the contact wipers of some sockets, so that the pins are gripped more tightly allowing for better contact and also to prevent the plug from slipping out of the socket. Some sockets have spring-action blades that grip the sides of the pins, making the holes obsolete.


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Seven Star Multi-Input Adapter Plug For USA Outlet SS407 plug adapter, adapter plug, adaptor, plug socket, universal plug, SS407, sevenstar, adapters, switzerland,europe,asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
Price: $3.99
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Seven Star Item #: SS-407 -

    Permits Most International Plugs to fit into the Grounded 3 Pin North American Electric Wall Outlet.Input : 3 Pin Grounded North American Plug (male )Output : Universal Receptacle (female)Model: Seven Star SS407

    609A Universal Plug Adapter with Switch for USA Outlet 609A American plug adaptor,US adapter plug,adapter,plug socket,universal plug,adapters,US,USA,europe,asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
    Price: $3.99
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    Norstar Item #: 609A -

      Accepts Plugs from most countries including UK, Europe, South Africa, Australia, ItalyOutput : North American 2 Flat Prong Plug (male) Input : Universal Receptacle (female)Permits plugs from other countries to fit into the Grounded or Ungrounded American Electric Wall OutletBuilt-in On/Off Power button for added convenienceThis style of plug is mainly used in USA, Canada, Mexico, Japan, American Samoa, Anguilla, Antigua, Aruba, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Cambodia, Cayman...

      703-A Universal Plug Adapter for Standard USA Outlet 703-A American plug adaptor,US adapter plug,adapter,plug socket,universal plug,adapters,US,USA,europe,asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
      Price: $2.89
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      Norstar Item #: 703-A -

        This type A adapter accepts Plugs from most countries including UK, Europe, South Africa, Australia, ItalyOutput : North American 2 Flat Prong Plug (male) Input : Universal Receptacle (female)This plug does not light up. The Blue Frame is just for color purposes. There are no lights inside.Permits plugs from other countries to fit into the Grounded or Ungrounded American Electric Wall OutletThis style of plug is mainly used in USA, Canada, Mexico, Japan, American Samoa, Anguilla, Antigua,...

        Seven Star SS-410 Universal Plug Adapter for Standard USA Outlet American plug adaptor,US adapter plug,adapter,plug socket,universal plug,adapters,US,USA,europe,asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
        Price: $1.99
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        Seven Star Item #: SS-410W -

          This Seven Star SS-410 type A adapter plug accepts Plugs from most countries including UK, Europe, Australia, ItalyInput : North American 2 Flat Prong Plug (male) Output : Universal Receptacle (female)Permits plugs from other countries to fit into the Grounded or Ungrounded American Electric Wall OutletThis style of plug is mainly used in USA, Canada, Mexico, Japan, American Samoa, Anguilla, Antigua, Aruba, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Cambodia, Cayman Islands, Colombia,...

          Seven Star SS-417 Universal to American Grounded Plug Adapter USA plug adapter, US adapter plug, adaptor,SS-417, plug socket, universal plug, adapters, US, USA,America,europe,asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
          Price: $1.99
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          Seven Star Item #: SS-417W -

            Seven Star SS417 Universal Plug Adapter For U.S/Canada Permits Plugs from other Countries to fit into the Grounded North American Electric Outlet This type B adapter Accepts Plugs from most countries including UK, Europe, Australia, ItalyInput : North American 3 Prong (2 flat, 1 round) Grounded Plug (male) Output : Universal Receptacle (female)Permits plugs from other countries to fit into the Grounded North American Electric Wall OutletThis style of plug is mainly used in USA, Canada,...

            Seven Star SS717 Universal to USA Grounded Plug Adapter USA plug adapter,US adapter plug,adaptor,SS-417,plug socket,universal plug,adapters,US,USA,America,europe,asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
            Price: $2.89
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            Seven Star Item #: SS717 -

              Permits Plugs from other Countries to fit into the Grounded North American Electric Outlet Accepts Plugs from most countries including UK, Europe, Australia, ItalyInput : North American 3 Prong (2 flat, 1 round) Grounded Plug (male) Output : Universal Receptacle (female)Permits plugs from other countries to fit into the Grounded North American Electric Wall OutletThis style of plug is mainly used in USA, Canada, Mexico, Japan, American Samoa, Anguilla, Antigua, Aruba, Bahamas, Barbados,...

              US Grounded Plug Adapter - Change Australia/New Zealand Plug into 3-Pin US Plug
              Price: $3.99
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              Simran Item #: PG28 -

                Permits Plugs from Australia/New Zealand to fit into the Grounded North American Electric OutletConverts plug from Type I To Type B Accepts plugs from Australia/New Zealand into the Female side.Output : 3-Pin Grounded US Style (male)Input : Australia/New Zealand 3-Pin OR 2-Pin plugs (female)Permits plugs from foreign countries to fit into US Wall OutletsThis style of plug is mostly used in the USA, but also at certain places in Canada, Mexico, Japan, American Samoa, Anguilla,...

                MF-7 European Asian to American Plug Adapter Black EU To US Flat Blade Converter Plug Type A
                Price: $0.99
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                Seven Star Item #: MF-7B -

                  Converts European/Asian Plug to American Plug (Type C/E/F To Type A) Converts Euro/Asian plug to North American Plug Input: 2 Prong Flat (male) Output: 2 Prong Round Receptacle (female) Non-grounding Adaptor Plug A A Pattern slip-on adaptor plug. Used in Western Hemisphere, North & Central Pacific. Valuable for adapting polarized plugs to non-polarized sockets (e.g. Japan, Central America). Accepts both parallel-blade plugs and round-pin transformer / converter plugs, as well as polarized...

                  MF-7 European Asian to American Plug Adapter White EU To US Flat Blade Converter Plug Type A
                  Price: $0.99
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                  Norstar Item #: MF-7W -

                    Converts European/Asian Type Plug to American Style Plug (From Type C, E, F to Type A) Converts two round pin Euro/Asian plug to two flat blades North American style Plug Adaptor Plug Type AA Pattern slip-on adaptor plug. Used in Western Hemisphere, North & Central Pacific. Valuable for adapting polarized plugs to non-polarized sockets (e.g. Japan, Central America). Accepts both parallel-blade plugs and round-pin transformer / converter plugs, as well as polarized plugs (where one...

                    Seven Star MFV-13 Europe Schuko to USA Plug Adapter European to American adapter plug, EU TO U.S plug adapter, adapter plug, MFV13, adaptor, plug socket, universal plug, adapters, ground, US, europe, asia,africa,india,uk,universal adapters,220 plug,220v adapter,220 volt adapter,220 adaptor
                    Price: $3.99
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                    Seven Star Item #: MFV-13 -

                      This Seven Star MFV13 adapter converts European Schuko Grounded Plug to North American Grounded Plug Input: 3 Pin American Ground (male) Output: 2 Pin Schuko Receptacle (female)

                      SS422 British UK To US Adapter Plug
                      Price: $2.49
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                      Seven Star Item #: SS-422 -

                        Seven Star SS422 UK style to U.S style Adapter Plug Permits 3 square pin U.K. type to be plugged into the regular 2 flat pin U.S. outlet (From type G to type A) UK To US Adapter Plug Permits 3 square pin U.K. type to be plugged into the regular 2 flat pin U.S. outlet