IEC 60906-1

IEC 60906-1 is an international standard for 230 V AC connector.

The standard was published in 1986 by the International Electrotechnical Commission. South Africa has introduced the standard SANS 164-2 this standard in addition to the old standards. Brazil has the based on this standard NBR 14136 made ​​mandatory on 1 January 2010.

Situated opposite the German Schuko system has this connector system the benefits, reverse polarity protected and to be more compact.

The first part of the IEC standard describes the standards for connectors up to 250 V and 16 A. The second, published in 1992 part of the standard ( IEC 60906-2 ) defines the international standard for connections of up to 125 V. This standard is using today in North America used plugs and sockets ( type A and type B) compatible. Part 3 (IEC 60906-3 ) describes a set of low-voltage connectors.

Description of the plug and socket

The plug has three circular pins of equal length with a diameter of 4.5 mm. The center points of the two outer pins are 19 mm apart; the center of the protective conductor pin is from the central line at a distance of 3 mm. The two outer pins have metallic and rounded tips, sitting on plastic insulating sleeves. The ground pin consists entirely of metal with a rounded tip. The height of the front plug is 17 mm, the total width of 35.5 mm.

The power outlet is located in a recess of 10 mm or a 12 mm high rim to eliminate touching the pins of the plug. The construction of the socket ensures that the protective conductor when the plug is inserted first contact will receive ( preemptive protection connection). Socket and plug are polarized ( at bottom- PE is in the socket left of L and the right of the N conductor ).

Advantages of the plug-in system

  • Plug and socket are much smaller than today's 3 -pin connector systems for 230 volts in Germany.
  • Plug and receptacle are polarized.
  • The safety ground connection is leading, that is, the earth pin is replaced when the plug is inserted first contact.
  • By insulating plastic sleeves around the feet of the neutral and of the pen for a phase Touching live connector pins becomes more difficult.
  • By the sinking of the socket touching the connector pins is excluded.
  • Due to the hexagonal shape, the sinking of the socket and the three pins, the system provides a secure mechanical support and a high mechanical strength, even against twisting.
  • The three-pole protection plug can not be plugged into an ungrounded outlet, that is, an operation without protective contact is not possible.
  • Plug and socket are designed for high performance (up to 250 volts and 16 amps; at 230 volts correspond to 16 amps a power of 3680 watts).
  • The socket can accommodate today's Euro flat plug, which makes a change to the system.

Thus, the system combines all relevant safety and performance features. Today's plug systems, such as the German Schukosystem (type F ), the British plug system (type G ) or the Swiss system (type J) only offer some of these benefits in each case.

Differences to Swiss connector

The plug is similar to the J- type used in Switzerland, however, is not compatible due to the following differences with this:

  • The pin or socket for grounding has from the centerline from a distance of 3 mm instead of 5 mm ( CH).
  • The pin diameter is 4.5 mm instead of 4 mm ( CH).
  • The outer conductor is at the IEC 60906-1 standardized left instead of right (CH).

Brazilian standard NBR 14136

On the basis of IEC 60906-1, the Brazilian standard NBR 14136 was developed, which was introduced gradually in the years 2007 to 2010 ( after several postponements ). However, compared with the provisos of IEC 60906 is a number of differences:

  • The pin diameter is 4.5mm and not the current interpretation is not 16 A. Instead, there are two combinations: 4 mm for 10 A and 4.8 mm for 20 A 20 A sockets so take 10 -A plug on ( but not vice versa). The 10 amp plug fitted in IEC 60906-1 sockets, IEC 60906-1 plug in the Brazilian 20 -A outlets.
  • There are also allows for phase and neutral conductor uninsulated pins.
  • For class 2 devices each two-pin connector versions exist with only 14 mm thickness, which is almost identical contour as in Euro plug. This raises the concern that 10 -A connectors are plugged in ( designed for 2.5 A) Euro extension cord and this can overload.
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