Shaver socket

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Shaver socket unit

A shaver socket ( shaver socket unit according to EN 61558-2-5) is a socket that is galvanically separated from the low-voltage network to connect electric shavers , toothbrushes and similar devices of class II with low power in damp rooms .

Electrical Properties

Rasiersteckdoseneinheiten ( English shaver supply units ) according to EN 61558-2-5 have an isolation transformer and usually can take several two-pole sockets, different connector types ( Euro plug , British BS 4573 plug and Australian plugs ). The isolating transformer often also has a 115 V output so that US plugs can also be used. Shaver socket units must be current-limited. EN 61558-2-5 specifies a minimum rated power of 20 VA and a maximum rated power of 50 VA. EN 61558-2-5 also requires that both sockets are marked with the electric shaver connection symbol (Figure 5225 IEC 60417-1). In addition, the words “shavers only” are often used, but these are not mandatory.

In bathrooms, the shaver socket units may be used in the laying zone of protection area 2 according to VDE 0100-701.

Connector BS 4573

British BS-4573 plug

The shaver socket emerged from the BS-4573 plug (UK Shaver) , a plug in the United Kingdom and Ireland , similar to the Euro plug in continental Europe, but which is smaller than this. Its angled pins are 0.2 inches (5.08 mm) in diameter with a smaller pitch of 0.625 inches (15.88 mm) to 0.656 inches (16.66 mm) in contrast to the Euro plug (17.5 to 18 mm pitch) , 6 mm).

The British Standard BS 4573 specifies a two-pole plug for use on electric shavers. The diameter of the plug contacts are the same as for the 5 A plug defined in the outdated British Standard BS 372: 1930 Part 1. In contrast to the original BS-4573 plug, the receptacles on the contacts are isolated. The sockets for these plugs are designed exclusively for a nominal current of 200 mA.

Since the BS-4573 socket is only approved for use in dry rooms, it could not be used in typical locations for razors and is therefore only rarely used today. Sockets operated with isolating transformers and which can also be used in damp rooms have prevailed. In order to guarantee the use of both British BS-4573 plugs and Euro plugs, shaver socket units have been developed, the properties of which are specified in EN 61558-2-5.

Individual evidence

  1. ↑ In Germany: DIN EN 61558-2-5 / VDE 0570 Part 2-5: Safety of transformers, power supply units and the like; Special requirements for shaver socket transformers and shaver socket units ;
    in Switzerland: SN EN 61558-2-5: 2010 Special requirements and tests for transformers for shavers, power supplies for shavers and shaver socket units
  2. ↑ EN 61558-2-5 contains the following definitions: (3.1.101) Shaver socket transformer: Isolating transformer for fixed installation and limited output power, developed for the supply of electric shavers, toothbrushes and similar devices with a nominal power of 50 VA or less for use in the bathroom; it supplies only one razor or the like at the same time and (3.1.102) Shaver socket unit: accessories that contain a shaver socket transformer or a power supply unit containing a shaver socket transformer, as well as one or more sockets, whereby only the simultaneous use of one Plug is allowed.
  3. ↑ VDE 0100 Part 701 Setting up low-voltage systems; Requirements for production facilities, rooms and systems of a special kind; Rooms with a bathtub or shower
  4. ↑ a b BS 4573 (1970), British Standard Specification for two-pin reversible plugs and shaver socket-outlets , British Standards Institution .
  5. ↑ Management-Survival.com: AC power plugs and sockets - BS 4573 (UK shaver) ( Memento from May 31, 2014 in the Internet Archive )