Earthed plug

Electricity is essential in all areas of daily life these days. Whether household appliances, entertainment or even driving a car - nothing works without electricity. But not only the use of electricity is important, the secure connection of the electrical devices is also crucial. SCHUKO plugs are used here. These plugs are reliable and guarantee a stable connection between the devices and the mains. SCHUKO is the abbreviation for protective contact and a system of plugs and sockets. The SCHUKO plug is part of this plug-in system, which can be plugged in and unplugged under electrical voltage or load.

What is a SCHUKO plug?

SCHUKO is a system of mains plugs and sockets of the CEE 7/4 standard. These are also known as Type F connectors. Type F plugs are used, for example, in Germany, the Netherlands, Portugal, Austria, Spain, Sweden, Finland, Norway and many countries in Eastern Europe.

Already knew

The grounded SCHUKO plug in its current form was patented in 1929 by Siemens-Schuckertwerke AG. This was preceded by a patent by Albert Büttner, who designed the basic shape of the plug and held all the necessary parts together with just a single screw.


SCHUKO plugs and the associated sockets are usually equipped with a protective earth and are intended for use in 230-volt networks with a current of 16 amps. SCHUKO plugs and sockets are unpolarized. That means: outer conductor and neutral conductor are randomly connected. In addition to the outer conductor and the neutral conductor, the system has a green-yellow protective conductor, which takes over the protective earthing with two flat contacts at the top and bottom of the plug. When plugged into a socket, the SCHUKO plug closes the connection cavity of the socket and thus prevents contact with conductive components when making contact. First, a ground is established between the flat contacts of the plug and the grounding terminals located in the socket. Only then do the phase conductor connections and the neutral conductor connections come into contact with one another. And it is precisely this fact that is special about the SCHUKO system and gives it its name: the protective contact connection diverts dangerous voltages as soon as the electrical circuit is closed by the other two poles. This design with leading protective contact ensures that there are no dangerous voltages on accessible parts of the device.

Additional lateral guide slots in the socket are required for reasons of stability. These enable the use of large and heavy SCHUKO plugs, for example with a built-in transformer or timer.

Source: eibabo®, Mennekes 10837 Schuko plugImage: Mennekes 10837 Schuko plug

Basic information on the typification of plugs and sockets

The plugs and sockets that exist worldwide are numerous and correspondingly different. Their design and structure is often historical and adapted to the conditions of the power grid in the respective region. Worldwide, we distinguish between two standards for wired AC transmission. On the one hand, this is the 230 volt standard with a frequency of 50 Hertz / 60 Hertz. On the other hand, it is the 110 volt technology with a frequency of 50 Hertz / 60 Hertz. Based on this, individual countries and manufacturing companies began to offer their own connectors. This led to a high degree of individualization. The introduction of a globally standardized plug system failed on the one hand because of political sensitivities, wars and conflicts and, of course, because of the two already established transmission standards. Because there would be a risk of devices being damaged or short circuits or fires occurring if a device were connected to a network with a voltage other than its nominal value. As a result, the development of adapters and transformers was accepted instead to achieve cross-system international compatibility.

Notice

There are currently 15 plug / socket standards worldwide, referred to as plug types A to O. Here in Central Europe, types C, E and F are used, some of which are also compatible with each other.


The Type-C plug is an unearthed two-pronged plug that used to be standard in most European countries as well as in the countries of the former USSR. This type is considered the forerunner of today's French type E and the German type F. Type C plugs are still often found in the form of flat plugs on many devices such as fairy lights, floor lamps, razors, hair dryers and other small household appliances. In the international CEE system, this plug shape is referred to as the CEE 7/16 standard. Type C plugs fit perfectly into a Type F SCHUKO socket.

With the French type E plug, there is a grounding contact for the protective conductor in the center above the pins for the phase conductor and neutral conductor. The counterpart to this is a pin that protrudes from the French Type E socket. Classic plugs of this type are usually round and do not fit into the Type F SCHUKO socket because the lateral guide grooves and the recess for the earthing contacts attached at the top and bottom are missing. However, these are only very rarely found and are increasingly being replaced by CEE 7/7 plugs, which fit both type E sockets and type F SCHUKO sockets.

The German Type F SCHUKO plug is widely used throughout Europe, as well as in Russia, Belarus and Ukraine. This is characterized by the grounding clamps at the top and bottom and by a guide groove on the right and left. In the international CEE system, this plug shape is referred to as the CEE 7/4 standard and is not compatible with the French Type E socket due to the lack of a recess for the grounding pin. This is why it is now considered obsolete. In the course of a homogenization of the European market, this plug is often replaced by the CEE 7/7 plug, which is a hybrid E/F plug. The CEE-7/7 SCHUKO plug is therefore the current, grounded and universal continental European standard:

  • with grounding clips on both sides to match with Type F socket
  • with a socket contact to accept the ground pin of the Type E socket

 

 


by the way

The socket of the SCHUKO socket is set back by 15 mm so that there is no risk of electric shock if the plug is partially inserted.


 

Both the SCHUKO system and the French counterpart are designed for a nominal voltage of 230 volts at 50 hertz. All components are designed for 16 amps as standard. At 230 volts, this corresponds to an output of 3,680 watts.

What is a contour plug?

In connection with SCHUKO plugs, we often hear the term contour plug. A contoured plug is a two-pole (i.e. unearthed) plug that has the necessary recesses for the German grounding clamps, the guide grooves and an additional hole for the French protective conductor contact on the rounded edge of the plug. The plug thus fits into both systems, but does not use the protective contacts.

At eibabo® you will find not only classic SCHUKO connectors, but also 2KT SCHUKO connectors (for difficult conditions), duroplastic connectors, flat connectors, flat cable connectors and flat connectors. Rubber plugs and PVC SCHUKO plugs as well as assembly plugs, angled plugs and wall plugs are also available for the SCHUKO system. In addition to the protective contact plugs of the SCHUKO system, we also carry protective contact plugs of the Swiss system and the English plug system.

 


Please note

SCHUKO plug connections are not always compatible with other safety plug systems.


 

SCHUKO plugs from all approved and well-known manufacturers are offered here in the shop, including ABL Sursum, Berker, Bachmann, Merten, Mennekes, Gira, Busch-Jaeger and Apsa.

 

eibabo - technology store

 

Catalogue content:


In this eibabo® catalogue Domestic switching devices > Plug with protective contact you will find items from the following product groups:

Item overview:

  • Angle connector
  • Belgium clutch
  • Belgium plug
  • Connector
  • Connectors
  • Device connector
  • Elamide connector
  • European plug
  • France clutch
  • France plug
  • French plug
  • Household plug
  • Protective contact
  • Rubber plug
  • Safety plug
  • Schuko plug
  • Sockets
  • Solid rubber plug


from the following manufacturers:

Manufacturer overview catalogue Earthed plug:

  • ABL
  • Bachmann
  • Bals
  • Berker
  • Busch Jaeger
  • E+P Elektrik
  • Elspro
  • Gira
  • Harting
  • Hirschmann
  • Jung
  • Kleinhuis
  • Legrand Bticino
  • Mennekes
  • Merten
  • Meyer
  • Schulte
  • Walther


 
Electricity is essential in all areas of daily life these days. Whether household appliances, entertainment or even driving a car - nothing works without electricity. But not only the use of... read more »
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SCHUKO plug - European standard for electrical connections

Electricity is essential in all areas of daily life these days. Whether household appliances, entertainment or even driving a car - nothing works without electricity. But not only the use of electricity is important, the secure connection of the electrical devices is also crucial. SCHUKO plugs are used here. These plugs are reliable and guarantee a stable connection between the devices and the mains. SCHUKO is the abbreviation for protective contact and a system of plugs and sockets. The SCHUKO plug is part of this plug-in system, which can be plugged in and unplugged under electrical voltage or load.

What is a SCHUKO plug?

SCHUKO is a system of mains plugs and sockets of the CEE 7/4 standard. These are also known as Type F connectors. Type F plugs are used, for example, in Germany, the Netherlands, Portugal, Austria, Spain, Sweden, Finland, Norway and many countries in Eastern Europe.

Already knew

The grounded SCHUKO plug in its current form was patented in 1929 by Siemens-Schuckertwerke AG. This was preceded by a patent by Albert Büttner, who designed the basic shape of the plug and held all the necessary parts together with just a single screw.


SCHUKO plugs and the associated sockets are usually equipped with a protective earth and are intended for use in 230-volt networks with a current of 16 amps. SCHUKO plugs and sockets are unpolarized. That means: outer conductor and neutral conductor are randomly connected. In addition to the outer conductor and the neutral conductor, the system has a green-yellow protective conductor, which takes over the protective earthing with two flat contacts at the top and bottom of the plug. When plugged into a socket, the SCHUKO plug closes the connection cavity of the socket and thus prevents contact with conductive components when making contact. First, a ground is established between the flat contacts of the plug and the grounding terminals located in the socket. Only then do the phase conductor connections and the neutral conductor connections come into contact with one another. And it is precisely this fact that is special about the SCHUKO system and gives it its name: the protective contact connection diverts dangerous voltages as soon as the electrical circuit is closed by the other two poles. This design with leading protective contact ensures that there are no dangerous voltages on accessible parts of the device.

Additional lateral guide slots in the socket are required for reasons of stability. These enable the use of large and heavy SCHUKO plugs, for example with a built-in transformer or timer.

Source: eibabo®, Mennekes 10837 Schuko plugImage: Mennekes 10837 Schuko plug

Basic information on the typification of plugs and sockets

The plugs and sockets that exist worldwide are numerous and correspondingly different. Their design and structure is often historical and adapted to the conditions of the power grid in the respective region. Worldwide, we distinguish between two standards for wired AC transmission. On the one hand, this is the 230 volt standard with a frequency of 50 Hertz / 60 Hertz. On the other hand, it is the 110 volt technology with a frequency of 50 Hertz / 60 Hertz. Based on this, individual countries and manufacturing companies began to offer their own connectors. This led to a high degree of individualization. The introduction of a globally standardized plug system failed on the one hand because of political sensitivities, wars and conflicts and, of course, because of the two already established transmission standards. Because there would be a risk of devices being damaged or short circuits or fires occurring if a device were connected to a network with a voltage other than its nominal value. As a result, the development of adapters and transformers was accepted instead to achieve cross-system international compatibility.

Notice

There are currently 15 plug / socket standards worldwide, referred to as plug types A to O. Here in Central Europe, types C, E and F are used, some of which are also compatible with each other.


The Type-C plug is an unearthed two-pronged plug that used to be standard in most European countries as well as in the countries of the former USSR. This type is considered the forerunner of today's French type E and the German type F. Type C plugs are still often found in the form of flat plugs on many devices such as fairy lights, floor lamps, razors, hair dryers and other small household appliances. In the international CEE system, this plug shape is referred to as the CEE 7/16 standard. Type C plugs fit perfectly into a Type F SCHUKO socket.

With the French type E plug, there is a grounding contact for the protective conductor in the center above the pins for the phase conductor and neutral conductor. The counterpart to this is a pin that protrudes from the French Type E socket. Classic plugs of this type are usually round and do not fit into the Type F SCHUKO socket because the lateral guide grooves and the recess for the earthing contacts attached at the top and bottom are missing. However, these are only very rarely found and are increasingly being replaced by CEE 7/7 plugs, which fit both type E sockets and type F SCHUKO sockets.

The German Type F SCHUKO plug is widely used throughout Europe, as well as in Russia, Belarus and Ukraine. This is characterized by the grounding clamps at the top and bottom and by a guide groove on the right and left. In the international CEE system, this plug shape is referred to as the CEE 7/4 standard and is not compatible with the French Type E socket due to the lack of a recess for the grounding pin. This is why it is now considered obsolete. In the course of a homogenization of the European market, this plug is often replaced by the CEE 7/7 plug, which is a hybrid E/F plug. The CEE-7/7 SCHUKO plug is therefore the current, grounded and universal continental European standard:

  • with grounding clips on both sides to match with Type F socket
  • with a socket contact to accept the ground pin of the Type E socket

 

 


by the way

The socket of the SCHUKO socket is set back by 15 mm so that there is no risk of electric shock if the plug is partially inserted.


 

Both the SCHUKO system and the French counterpart are designed for a nominal voltage of 230 volts at 50 hertz. All components are designed for 16 amps as standard. At 230 volts, this corresponds to an output of 3,680 watts.

What is a contour plug?

In connection with SCHUKO plugs, we often hear the term contour plug. A contoured plug is a two-pole (i.e. unearthed) plug that has the necessary recesses for the German grounding clamps, the guide grooves and an additional hole for the French protective conductor contact on the rounded edge of the plug. The plug thus fits into both systems, but does not use the protective contacts.

At eibabo® you will find not only classic SCHUKO connectors, but also 2KT SCHUKO connectors (for difficult conditions), duroplastic connectors, flat connectors, flat cable connectors and flat connectors. Rubber plugs and PVC SCHUKO plugs as well as assembly plugs, angled plugs and wall plugs are also available for the SCHUKO system. In addition to the protective contact plugs of the SCHUKO system, we also carry protective contact plugs of the Swiss system and the English plug system.

 


Please note

SCHUKO plug connections are not always compatible with other safety plug systems.


 

SCHUKO plugs from all approved and well-known manufacturers are offered here in the shop, including ABL Sursum, Berker, Bachmann, Merten, Mennekes, Gira, Busch-Jaeger and Apsa.

 

eibabo - technology store

 

Catalogue content:


In this eibabo® catalogue Domestic switching devices > Plug with protective contact you will find items from the following product groups:

Item overview:

  • Angle connector
  • Belgium clutch
  • Belgium plug
  • Connector
  • Connectors
  • Device connector
  • Elamide connector
  • European plug
  • France clutch
  • France plug
  • French plug
  • Household plug
  • Protective contact
  • Rubber plug
  • Safety plug
  • Schuko plug
  • Sockets
  • Solid rubber plug


from the following manufacturers:

Manufacturer overview catalogue Earthed plug:

  • ABL
  • Bachmann
  • Bals
  • Berker
  • Busch Jaeger
  • E+P Elektrik
  • Elspro
  • Gira
  • Harting
  • Hirschmann
  • Jung
  • Kleinhuis
  • Legrand Bticino
  • Mennekes
  • Merten
  • Meyer
  • Schulte
  • Walther
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