2 vertical flat blades – 15A, 125V
Standard in most of North, Central America and on the east coast of South America. Class II ungrounded with two flat parallel prongs.
Plug type B
2 vertical flat blades with grounding blade – 15A, 125V
Class I plug with two flat parallel prongs and a grounding pin (American standard NEMA 5-15/Canadian standard CS22.2, n°42). Also a standard plug in Japan but is less frequently used than in North America.
Plug type C
2 wire with 2 round prongs, ungrounded – 20A, 125V
Two-wire ungrounded plug with two round prongs, also known as the europlug and the most widely used international plug. It will mate with any socket that accepts 4.0 – 4.8 mm round contacts on 19 mm centres. Mostly used all over Europe except United Kingdom and Ireland.
Plug type D
One of the most dangerous plug type in the world, as the prongs are not insulated so when you pull the plug half way out, its prongs are still connected to the socket. Mostly used in India, Sri Lanka, Nepal and Namibia and occasionally found in hotels in UK and Ireland.
Plug type E
2 round prongs with a round male pin mounted in the socket – 16A, 250V
Standard socket in France, Belgium and some other countries, except Germany and other continental European countries. The original type E plug, which does not have grounding clips, is no longer used, although very rarely it can still be found on some older appliances. A type C plug fits perfectly into a type E socket.
Plug type F
2 round prongs with two grounding clips on the side of the plug – 16A, 250V
Commonly called as Schuko plug, a german word which means “earthed/grounded contact”. The plug was designed in Germany shortly after the First World War. It has grounding clips on both sides to mate with the type F socket and a female contact to accept the grounding pin of the type E socket.
Plug type G
Three rectangular prongs that form a triangle – 13A, 230-240V
British Standard BS 1363 requires use of a three-wire grounded and fused plug for all connections to the power mains (including class II, two-wire appliances). Considered one of the safest plugs in the world.
Plug type H
2 flat v-shape prongs, with a grounding pin – 16A, 250V
In 1989 Israel standardised on a new version of the type H socket: the holes were made round in order to accommodate type C plugs as well. One of the most dangerous plugs in the world as the prongs are not insulated.
Plug type I
2 flat v-shape prongs, with a grounding pin – 10A, 240V
Australia’s standard plug/socket system is described in SAA document AS 3112 and is used in applications up to 10 amps. A plug/socket configuration with rating at 15 amps (ground pin is wider: 8 mm instead of 6.35 mm) is also available. A lower-amperage plug will always fit into a higher-amperage outlet but not vice versa.
Plug type J
2 wire with 2 round prongs with grounding pin – 10A, 250V
Switzerland has its own standard which is described in SEC 1011. This plug is similar to C, except that it has the addition of a grounding pin. Considered one of the most dangerous plugs in the world as the prongs are not insulated.
Plug type K
2 wire flat prongs with a grounding pin – 13A, 250V
Danish standard and is similar to F except that it has a grounding pin instead of grounding clips. A type C plug fits perfectly into a type K socket. Because of the huge amount of E/F plugs in Denmark, the Danish government decided to make it legal to install type E instead of type K sockets from 2008 onwards.
Plug type L
Italian grounded plug/socket standard, CEI 23-16/VII – 10A/16A, 250V
The prongs of the 10 amp version are 4 mm thick and 5.5 mm apart, whereas those of the 16 amp version are 5 mm thick and 8 mm apart.
Plug type M
3 grounding pins – 10A/20A, 250V
Mostly used in Israel for heavy appliances such as air-conditioning circuits and washing machines. Because its prongs are not insulated, it is considered as one of the most dangerous plugs in the world.
Plug type N
2 pins and a grounding pin – 10A/20A, 250V
Standard in Brazil and was gradually phased in between 2007 – 2010. Type N sockets were specifically designed to accommodate the ubiquitous type C plugs as well.