International standards for plugs and sockets
National standards define specifications for plugs, connectors and socket-outlets intended for use in specific countries or regions. Examples include the French-Belgian standard (Type E) and the NEMA standard in North America. These standards ensure that electrical plug & socket systems can be used safely, reliably and in compliance with regulations within the respective market. They take into account country-specific requirements regarding voltage, current ratings, safety measures and installation practices, thereby ensuring safe and consistent use within the national infrastructure.
Types of plugs and sockets
Around the world, 14 different plug types are in use (Types A to N). Which plugs and socket-outlets are used in which countries? We have compiled all the key information for you here:
- Germany: Primarily uses Types D, F, H and N for industrial applications. Type F (four-pole, three-phase with earthing) is particularly widespread.
- France: Commonly uses Types D, F and H. Type H (five-pole, three-phase with neutral conductor and earthing) is especially prevalent in industrial applications.
- United Kingdom: Types F, H and N are widely used, with Type F being particularly common due to strong industrial usage.
- Italy: Primarily uses Types D, F and H, with a focus on Type H for high-power applications.
- USA: Uses plug & socket devices in accordance with NEMA standards; however, in certain applications, types such as Type F and H may also be used.
- Canada: Similar to the USA, NEMA standards are primarily used.
- Brazil: Uses a combination of national standards, with Types F and H commonly used in industrial applications.
- Argentina: Primarily uses Types D, F and H, with increasing adoption of Type H.
- China: Types F and H are commonly used in industrial applications.
- Japan: Primarily uses national standards; types such as D and F are applied in specific industrial applications.
- India: Uses Types D, F and H for industrial applications, with a growing focus on Type H for modern installations.
- Australia: Commonly uses Types D, F and H, with a particular focus on Type H for high safety and high-performance requirements.
- New Zealand: Similar to Australia, Types D, F and H are widely used.
- South Africa: Primarily uses Types D, F and H in industrial applications. Type H is preferred for high-power applications.
- Nigeria: Uses a mix of national standards, with Types F and H commonly found in larger industrial installations.
