Plug & Socket Types

There are currently 15 types of electrical outlet plugs in use today, each of which has been assigned a letter by the US Department of Commerce International Trade Administration (ITA), starting with A and moving through the alphabet. These letters are completely arbitrary: they don’t actually mandate anything.

Type A

  • Mainly used in the USA, Canada, Mexico & Japan
  • 2 pins
  • Not grounded
  • 15 A
  • Almost always 100 – 127 V
  • Socket compatible with plug type A

Type B

  • Mainly used in the USA, Canada, Mexico & Japan
  • 3 pins
  • Grounded
  • 15 A
  • Almost always 100 – 127 V
  • Socket compatible with plug types A & B

Type C

  • Commonly used in Europe, South America & Asia
  • 2 pins
  • Not grounded
  • 2.5 A
  • Almost always 220 – 240 V
  • Socket compatible with plug type C

Type D

  • Mainly used in India
  • 3 pins
  • Grounded
  • 5 A
  • 220 – 240 V
  • Socket compatible with plug type D (partial and unsafe compatibility with C, E & F)

Type E

  • Primarily used in France, Belgium, Poland, Slovakia & Czechia
  • 2 pins
  • Grounded
  • 16 A
  • 220 – 240 V
  • Socket compatible with plug types C, E & F

Type F

  • Used almost everywhere in Europe & Russia, except for the UK & Ireland
  • 2 pins
  • Grounded
  • 16 A
  • 220 – 240 V
  • Socket compatible with plug types C, E & F

Type G

  • Mainly used in the United Kingdom, Ireland, Malta, Malaysia & Singapore
  • 3 pins
  • Grounded
  • 13 A
  • 220 – 240 V
  • Socket compatible with plug type G

Type H

  • Used exclusively in Israel, the West Bank & the Gaza Strip
  • 3 pins
  • Grounded
  • 16 A
  • 220 – 240 V
  • Socket compatible with plug types C & H (unsafe compatibility with E & F)

Type I

  • Mainly used in Australia, New Zealand, China & Argentina
  • 2 or 3 pins
  • 2 pins: not grounded / 3 pins: grounded
  • 10 A
  • 220 – 240 V
  • Socket compatible with plug type I

Type J

  • Used almost exclusively in Switzerland & Liechtenstein
  • 3 pins
  • Grounded
  • 10 A
  • 220 – 240 V
  • Socket compatible with plug types C & J

Type K

  • Used almost exclusively in Denmark & Greenland
  • 3 pins
  • Grounded
  • 16 A
  • 220 – 240 V
  • Socket compatible with plug types C & K (unsafe compatibility with E & F)

Type L

  • Used almost exclusively in Italy & Chile
  • 3 pins
  • Grounded
  • 10 A & 16 A
  • 220 – 240 V
  • 10 A socket compatible with plug types C & L (10 A version) / 16 A socket compatible with plug type L (16 A version)

Type M

  • Mainly used in South Africa
  • 3 pins
  • Grounded
  • 15 A
  • 220 – 240 V
  • Socket compatible with plug type M

Type N

  • Used in Brazil and South Africa
  • 3 pins
  • Grounded
  • 10 A & 20 A
  • 100 – 240 V
  • Socket compatible with plug types C & N

Type O

  • Used exclusively in Thailand
  • 3 pins
  • Grounded
  • 16 A
  • 220 – 240 V
  • Socket compatible with plug types C & O (unsafe compatibility with E & F)

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