Mains power systems

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This is a list of countries and territories, with the plugs, voltages and frequencies they use for providing electrical power to small appliances and some major appliances. For definitions of terms and further information on each plug, see the article Domestic AC power plugs and sockets.

The terms line voltage/frequency or mains voltage/frequency commonly refer to the electrical voltage and frequency used in the low voltage parts (in particular wall sockets) of an alternating current electricity supply network. These parameters vary between regions, but the voltages are generally in the range 100–240 V, and the two commonly used frequencies are 50 Hz and 60 Hz. Other terms for "mains voltage" include power-supply voltage, supply voltage, system voltage, household power, household electricity, domestic power, wall power, line power, AC power, or grid power.

Most places on the list are autonomous countries; however some territories that do things very differently from the countries they belong to (such as Hong Kong) are listed separately.

The lettering system, which is believed to have originated from a U.S. government document^[1], although useful for quick reference is a bit ambiguous in some areas. A plug and socket that are classified here under the same letter will usually mate, but there is no guarantee of this. A more up-to-date and authoritative reference on plugs and sockets is IEC Technical Report 60083.

Voltage and frequency.

Plugs.

Note: Most European countries are gradually moving towards a 230 volt standard.

Region	Type(s) of plug / socket	Voltage	Frequency	Comments
Afghanistan	C, D, F	240 V	50 Hz	Voltage may vary from 160 to 280.
Albania	C, F	220 V	50 Hz
Algeria	C, F	230 V	50 Hz
American Samoa	A, B, F, I	120 V	60 Hz
Andorra	C, F	220 V	50 Hz
Angola	C	220 V	50 Hz
Anguilla	A (maybe B)	110 V	60 Hz
Antigua	A, B	230 V	60 Hz	Airport power is reportedly 110 V.
Argentina	C, I	220 V	50 Hz	Live and neutral are reversed for socket outlet type I in comparison to most other countries.
Armenia	C, F	220 V	50 Hz
Aruba	A, B, F	127 V	60 Hz	Lago Colony 115 V.
Australia	I	230 V	50 Hz	As of 2000, the mains supply voltage as specified in AS 60038 has changed to 230 V with an allowed tolerance of +10% -6%^[2]. This was done in the interests of voltage harmonisation - however 240 V is within tolerance and is commonly found. Mains voltage is still referred to as "two-forty volts".
Austria	C, F	230 V	50 Hz
Azerbaijan	C	220 V	50 Hz
Azores	B, C, F	220 V	50 Hz	Ponta Delgada 110 V; to be converted to 220 V.
Bahamas	A, B	120 V	60 Hz
Bahrain	G	230 V	50 Hz	Awali 110 V, 60 Hz.
Balearic Islands	C, F	220 V	50 Hz
Bangladesh	A, C, D, G, K	220 V	50 Hz
Barbados	A, B	115 V	50 Hz
Belarus	C	220 V	50 Hz
Belgium	C, E	230 V	50 Hz
Belize	A, B, G	110 V and 220 V	60 Hz
Benin	C, E	220 V	50 Hz
Bermuda	A, B	120 V	60 Hz
Bhutan	D, F, G, M	230 V	50 Hz
Bolivia	A, C	220 V	50 Hz	La Paz & Viacha 115 V.
Bosnia	C, F	220 V	50 Hz
Botswana	D, G, M	231 V	50 Hz
Brazil	A, B, C, I	110 V and 220 V	60 Hz	Type I is becoming common for 220 V outlets and appliances in 110 V areas. Dual-voltage wiring is rather common in Brazil - high-powered appliances, such as clothes dryers, tend to be 220 V even in 110 V areas. Note also that depending on the area, the exact voltage might be 110 V, 115 V, 127 V, 130 V, 220 V or 240 V. The A, B and C types are sometimes together (flat with rounder ends and ground pin) so that an A, B or C types can be used. Also note that by 2009, Brazil will be converting to the IEC 60906-1 international plug which is similar to type J.
Brunei	G	240 V	50 Hz
Bulgaria	C, F	230 V	50 Hz
Burkina Faso	C, E	220 V	50 Hz
Burundi	C, E	220 V	50 Hz
Cambodia	A, C, G	230 V	50 Hz
Cameroon	C, E	220 V	50 Hz
Canada	A, B	120 V	60 Hz	Standardised at 120 V. 240 V/60 Hz used for heavy duty applications (e.g. clothes driers, electric cook-stoves and machinery). Many buildings wired for dual voltage but 120 V is the norm in single voltage installations. Type A outlets used for retrofit only, type B now required by code in new construction and renovation.
Canary Islands	C, E, L	220 V	50 Hz
Cape Verde	C, F	220 V	50 Hz
Cayman Islands	A, B	120 V	60 Hz
Central African Republic	C, E	220 V	50 Hz
Chad	D, E, F	220 V	50 Hz
Channel Islands	C, G	230 V	50 Hz
Chile	C, L	220 V	50 Hz
P.R. China (mainland only)	A, C, I, unofficially G	220 V	50 Hz	Most wall outlets simultaneously support types A, I and C. The A and C types are sometimes together (flat with rounder ends) so that an A or C types can be used. The I type is next to the A C type. It should be noted that C type plugs are rarely seen on appliances. The A type pictured shows polarized flat pins, one flat pin is larger then the other. The PR China flat pins are the same size. A polarized "A" plug will not fit into a PR China A type outlet without an adapter because of this. Use of G is probably influenced by Hong Kong.
Colombia	A, B	120 V	60 Hz
Comoros	C, E	220 V	50 Hz
Congo-Brazzaville	C, E	230 V	50 Hz
Congo-Kinshasa	C, D	220 V	50 Hz
Cook Islands	I	240 V	50 Hz
Costa Rica	A, B	120 V	60 Hz
Côte d'Ivoire	C, E	230 V	50 Hz
Croatia	C, F	230 V	50 Hz
Cuba	A, B	110 V	60 Hz
Cyprus	G	240 V	50 Hz
Czech Republic	C, E	230 V	50 Hz
Denmark	C, K	230 V	50 Hz	Type E is added from July 2008.^[3]
Djibouti	C, E	220 V	50 Hz
Dominica	D, G	230 V	50 Hz
Dominican Republic	A, B	110 V	60 Hz
East Timor	C, E, F, I	220 V	50 Hz
Ecuador	A, B	120 V	60 Hz
Egypt	C	220 V	50 Hz
El Salvador	A, B	115 V	60 Hz
Equatorial Guinea	C, E	220 V	50 Hz
Eritrea	C	230 V	50 Hz
Estonia	F	230 V	50 Hz
Ethiopia	D, J, L	220 V	50 Hz
Faroe Islands	C, K	220 V	50 Hz
Falkland Islands	G	240 V	50 Hz
Fiji	I	240 V	50 Hz
Finland	C, F	230 V	50 Hz
France	C, E	230 V (formerly 220v)	50 Hz
French Guiana	C, D, E	220 V	50 Hz
Gaza Strip	C, H, M	230 V	50 Hz	(see Israel in this list)
Gabon	C	220 V	50 Hz
Gambia	G	230 V	50 Hz
Germany	C, F	230 V (formerly 220v)	50 Hz	Type F ("Schuko", short for "Schutzkontakt") is standard. Type C Plugs ("Euro-Stecker") are common, especially for low-power devices. Type C wall sockets are very uncommon, and exist only in very old installations.
Ghana	D, G	230 V	50 Hz
Gibraltar	G, K	240 V	50 Hz	Type K was used in the Europort development by the Danish builders. Otherwise the United Kingdom fittings are used.
Greece	C, F	230 V (formerly 220v)	50 Hz	Type F is a de-facto standard for new installations' sockets. Type C sockets exist only in old installations. Light appliances use type C plug while more electricity-consuming ones use type E&F or F plugs.
Greenland	C, K	220 V	50 Hz
Grenada	G	230 V	50 Hz
Guadeloupe	C, D, E	230 V	50 Hz
Guam	A, B	110 V	60 Hz
Guatemala	A, B	120 V	60 Hz
Guinea	C, F, K	220 V	50 Hz
Guinea-Bissau	C	220 V	50 Hz
Guyana	A, B, D, G	240 V	60 Hz
Haiti	A, B	110 V	60 Hz
Honduras	A, B	110 V	60 Hz
Hong Kong S.A.R. of China	G, while D & M are used in old installations. M is still official when required current rating is between 13~15A	220 V	50 Hz	Largely based on UK system. A 'shaver' socket (similar to Type C) is sometimes found in bathrooms that will provide low current to some other plug types. These almost always have a 110 V socket and a 220 V socket in the same unit, or a switch to select voltage, which are sometimes labelled as 110 V and 220 V. Not so common in HK as in the UK.
Hungary	C, F	230 V	50 Hz
Iceland	C, F	230 V	50 Hz
India	C, D, M	230 V	50 Hz
Indonesia	C, F, G	127 V and 230 V	50 Hz	Type G socket/plug is less common.
Iran	C	230 V	50 Hz
Iraq	C, D, G	230 V	50 Hz
Ireland	G (D and M sometimes on old installations, as in the UK; F on some very early installations)	230 V (formerly 220v)	50 Hz	G Sockets and plugs standard as defined by NSAI I.S. 401. 'Shaver socket' sometimes seen (as in the UK); Type F ("Side Earth") plugs occasionally seen in old houses probably because much of the early Irish electrical network was built with assistance from Siemens.
Isle of Man	C, G	240 V	50 Hz
Israel	C, H, M	230 V	50 Hz	Most modern sockets accept both type C and type H plugs. Type M sockets are used for air conditioners. Identical plugs and sockets also used in Israel/Palestine West Bank and all of the Gaza Strip.
Italy	C, F, L	230 V (formerly 220v)	50 Hz	Contracts of the "Enel" company reports a voltage of 220V ±10% [1]
Jamaica	A, B	110 V	50 Hz
Japan	A, B	100 V	50 Hz and 60 Hz	Eastern Japan 50 Hz (Tokyo, Kawasaki, Sapporo, Yokohama, and Sendai); Western Japan 60 Hz (Okinawa, Osaka, Kyoto, Kobe, Nagoya, Hiroshima). Sockets and switches fit in American-sized standard boxes.
Jordan	B, C, D, F, G, J	230 V	50 Hz
Kenya	G	240 V	50 Hz
Kazakhstan	C	220 V	50 Hz
Kiribati	I	240 V	50 Hz
Korea, North	C	220 V	50 Hz
Korea, South	C, F	220 V	60 Hz	Type F is more likely to be found in offices, airports, hotels and some modern dwellings; while Type C (type CEE 7/17) is the norm in homes. 220 volt power (using two 110-volt lines in antiphase) is standard. 110 V/60 Hz power with plugs A & B (under Japanese colonisation influence) was previously used but is being phased out. Older buildings may still have this and some residents install their own step-down transformers and in-house 110 volt systems. Some hotels offer both 110 V and 220 V service. Switches and outlets fit American-sized boxes.
Kuwait	C, G	240 V	50 Hz
Kyrgyzstan	C
Laos	A, B, C, E, F	230 V	50 Hz
Latvia	C, F	220 V	50 Hz
Lebanon	A, B, C, D, G	110 and 200 V	50 Hz
Lesotho	M	220 V	50 Hz
Liberia	A, B	120 V	60 Hz	As of early 2005 there is no centralized power company in Liberia. All electricity is privately generated.
Libya	D	127 V	50 Hz	Barce, Benghazi, Derna, Sebha & Tobruk 230 V.
Lithuania	C, F	230 V (formerly 220v)	50 Hz
Liechtenstein	C, J	230 V	50 Hz	Swiss Norm, C only in the form CEE 7/16.
Luxembourg	C, F	230 V (formerly 220v)	50 Hz
Macau S.A.R. of China	D, M, G, a small number of F	220 V	50 Hz	No official standards there. However, in the Macao-HK Ferry Pier built by Portuguese Government before handover the standard was E & F. After handover, Macau adopted G in both government and private buildings.
Macedonia (FYROM)	C, F	220 V	50 Hz
Madagascar	C, D, E, J, K	127 V and 220 V	50 Hz
Madeira	C, F	220 V	50 Hz
Malawi	G	230 V	50 Hz
Malaysia	G, M for heavy appliances, especially air conditioners	240 V	50 Hz	Penang 230 V. Type C plugs are very common with AV equipments and other low-powered equipments. Plugged using widely-available adapters or forced into type G sockets by pushing down the shutter. The latter is widely practised, although hazardous.
Maldives	A, D, G, J, K, L	230 V	50 Hz
Mali	C, E	220 V	50 Hz
Malta	G	230 V	50 Hz
Martinique	C, D, E	220 V	50 Hz
Mauritania	C	220 V	50 Hz
Mauritius	C, G	230 V	50 Hz
Mexico	A, B	120 V	60 Hz	Type B becoming more common. Voltage can vary 110 to 135 depending on local transformer. Split phase (often incorrectly termed two phase) is commonly available and local electricians are apt to wire both to a type A/B socket to give 240 V for air conditioning or washing machine/dryers: beware, there is never a warning!
Micronesia	A, B	120 V	60 Hz
Moldova	C
Monaco	C, D, E, F	127 V and 220 V	50 Hz
Mongolia	C, E	230 V	50 Hz
Montenegro	C, F	220 V	50 Hz
Montserrat (Leeward Is.)	A, B	230 V	60 Hz
Morocco	C, E	127 V and 220 V	50 Hz	Conversion to 220 V only underway.
Mozambique	C, F, M	220 V	50 Hz	Type M found especially near the border with South Africa, including in the capital, Maputo.
Myanmar/Burma	C, D, F, G	230 V	50 Hz	Type G found primarily in better hotels. Also, many major hotels chains are said to have outlets that will take Type I plugs and perhaps other types.
Namibia	D, M	220 V	50 Hz
Nauru	I	240 V	50 Hz
Nepal	C, D, M	230 V	50 Hz
Netherlands	C, F	230 V (formerly 220v)	50 Hz
Netherlands Antilles	A, B, F	127 V and 220 V	50 Hz	St. Martin 120 V, 60 Hz; Saba & St. Eustatius 110 V, 60 Hz, A, maybe B
New Caledonia	F	220 V	50 Hz
New Zealand	I	230 V	50 Hz	Electricity Regulations 1997 states supply voltage is 230 V ±6%
Nicaragua	A, B	120 V	60 Hz
Niger	A, B, C, D, E, F	220 V	50 Hz
Nigeria	D, G	240 V	50 Hz
Norway	C, F	230 V	50 Hz
Okinawa	A, B, I	100 V	60 Hz	Military facilities 120 V.
Oman	C, G	240 V	50 Hz	Voltage variations common.
Pakistan	C, D	220 V	50 Hz	Karachi Electric Supply Corporation (KESC) output is 240 volts and 50 Hz.
Panama	A, B	110 V	60 Hz	Panama City 120 V.
Papua New Guinea	I	240 V	50 Hz
Paraguay	C	220 V	50 Hz
Peru	A, B, C	220 V	60 Hz	Talara 110/220 V; Arequipa 50 Hz
Philippines	A, B, C	220 V	60 Hz	In some homes type C sockets deliver 110V/60Hz. Sockets and switches fit standard American-sized boxes.
Poland	C, E	230 V	50 Hz
Portugal	C, F	220 V^[4]	50 Hz
Puerto Rico	A, B	120 V	60 Hz
Qatar	D, G	240 V	50 Hz
Réunion	E	220 V	50 Hz
Romania	C, F	230 V	50 Hz	Virtually identical to German standards.
Russian Federation	C, F	220 V	50 Hz	The former USSR (along with much of Eastern Europe) uses type GOST sockets with 4.0 mm pins instead of the 4.8mm standard used by West European (Schuko) Plugs. Obsolete standard 127 V/50 Hz AC using in some peripherial villages. Elsewhere it was replaced in 1970s by the 220V standard. Industrial appliances use 3-phase 380V AC supply.
Rwanda	C, J	230 V	50 Hz
St. Kitts and Nevis	D, G	230 V	60 Hz
St. Lucia (Winward Is.)	G	240 V	50 Hz
St. Vincent (Winward Is.)	A, C, E, G, I, K	230 V	50 Hz
Saudi Arabia	A, B, F, G	127 V and 220 V	60 Hz
Senegal	C, D, E, K	230 V	50 Hz
Serbia	C, F	220 V	50 Hz
Seychelles	G	240 V	50 Hz
Sierra Leone	D, G	230 V	50 Hz
Singapore	G, D, M	230 V	50 Hz	Type A and C adaptors are widely available from shops as an extension set of 2 to 5 sets of sockets; most commonly used for audio and video equipment.
Slovakia	C, E	230 V	50 Hz
Slovenia	C, F	230 V	50 Hz	360 V used for heavy duty applications.
Somalia	C	220 V	50 Hz
South Africa	M	220 V	50 Hz	Grahamstown & Port Elizabeth 250 V; also found in King Williams Town
Spain	C, F	230 V (formerly 220v)	50 Hz
Sri Lanka	D, M, G	230 V	50 Hz	Increased use of type G in new houses/establishments. Mainly in Colombo and high end hotels.
Sudan	C, D	230 V	50 Hz
Suriname	C, F	127 V	60 Hz
Swaziland	M	230 V	50 Hz
Sweden	C, F	230 V	50 Hz
Switzerland	C, J	230 V	50 Hz	C only in the form CEE 7/16.
Syria	C, E, L	220 V	50 Hz
Tahiti	A, B, E	110 V and 220 V	60 Hz
Tajikistan	C, I	220 V	50 Hz
Taiwan	A, B	110 V	60 Hz	The system was influenced by Japanese occupation. Switches and sockets fit American-standard wall boxes.
Tanzania	D, G	230 V	50 Hz
Thailand	A, B, C	220 V	50 Hz	Some outlets are a combination of type A and C and can accept either type plug. Newer outlets have a grounding hole that can also accommodate type B plugs. Devices are standard American form-factor, same as Japan, S. Korea, Taiwan and Philippines.
Togo	C	220 V	50 Hz	Lome 127 V.
Tonga	I	240 V	50 Hz
Trinidad & Tobago	A, B	115 V	60 Hz
Tunisia	C, E	230 V	50 Hz
Turkey	C, F	230 V	50 Hz
Turkmenistan	B, F	220 V	50 Hz
Uganda	G	240 V	50 Hz
Ukraine	C, F	220 V	50 Hz
United Arab Emirates	C, D, G	220 V	50 Hz
United Kingdom	G (D and M seen in very old installs and specialist applications)	240V in GB and 220V in NI	50 Hz	A 'shaver' socket (similar to Type C) is sometimes found in bathrooms that will provide low current to some other plug types. These almost always have a 110 V socket and a 230 V socket in the same unit, or a switch to select voltage, which are sometimes labelled as 115 V and 230 V. The G type socket often has a on-off switch on the socket. 110 V centre point earthed transformers are often used for industrial portable tools.
United States of America	A, B	120 V	60 Hz	Standardised at 120 V. In practice, voltage ranges from 105 to 130 volts depending on location, but these are within tolerance. 240 V/60 Hz (using two 120V lines in antiphase) used for heavy duty applications (e.g. clothes dryers, electric cook-stoves and machinery). Many buildings wired for dual voltage but 120 V is the norm in single voltage installations. Older systems used DC, 25 hertz, and even 50 hertz, but most have been replaced. Type A outlets used for retrofit only, type B now required by code in new construction and renovation.
Uruguay	C, F, I, L	230 V	50 Hz	Type F becoming more common as a result of computer use. Neutral and live wires are reversed, as in Argentina.
Uzbekistan	C, I	220 V	50 Hz
Venezuela	A, B	120 V	60 Hz	Type G found in household 220V service only for air conditioning and some high power appliances.
Vietnam	A, C, G	220 V	50 Hz	Type G found in newer hotels, primarily those built by Singaporean and Hong Kong developers.
Virgin Islands	A, B	110 V	60 Hz
Western Samoa	I	230 V	50 Hz
Yemen	A, D, G	230 V	50 Hz
Zambia	C, D, G	230 V	50 Hz
Zimbabwe	D, G	220 V	50 Hz