Shaver Sockets: Bathroom-Safe, Dual Voltage

Quick answer

A shaver socket is a special bathroom socket with a built-in isolating transformer, which is what makes it the one mains socket you can safely fit in a bathroom under BS 7671. Dual-voltage models give both 115V and 230V outlets, so they suit UK, EU and US shavers and toothbrushes. They must still be sited outside the immediate wet zones. BG shaver sockets start at £22.42 at Kent Traders.

What makes a shaver socket safe in a bathroom?

An ordinary 13A socket is not permitted in most of a bathroom because of the obvious risk of mains electricity near water. A shaver socket is different: it contains a safety isolating transformer that separates the shaver output from the mains supply. The output has no direct earth reference to the mains, so the risk of a dangerous shock is greatly reduced. That isolation is why the shaver supply unit is the accepted way to power a shaver or electric toothbrush in a bathroom.

Can I put a normal socket in a bathroom?

In short, no. BS 7671 divides a bathroom into zones based on proximity to the bath or shower, and standard 13A sockets are not allowed within those zones. The exception is the shaver supply unit, which thanks to its isolating transformer can be installed in the right location. Even then it should be kept away from the immediate wet zones and positioned where it cannot be splashed directly. The installing electrician sets the exact position under BS 7671.

Dual voltage explained

Most shaver sockets are dual voltage, marked 115V and 230V. The 230V outlet suits UK and European two-pin shavers, while the 115V outlet matches shavers sold for the US market. Having both means the socket works for guests and for travel appliances, which is why dual-voltage shaver sockets are popular in hotels as well as homes.

Choosing a shaver socket

Pick the finish to match your bathroom accessories, such as white moulded, brushed steel or chrome, and check the back box depth your wall allows. The BG Nexus Metal shaver sockets need a 47mm minimum box depth, which is deeper than a standard switch, so confirm there is room before you buy. They include a moisture-control gasket suited to freshly plastered bathroom walls.

Frequently asked questions

Can I fit a normal plug socket in a bathroom?

No. Standard 13A sockets are not allowed in bathroom zones under BS 7671. A shaver supply unit is the accepted option because its isolating transformer separates the output from the mains.

Why is a shaver socket safe near water?

It contains a safety isolating transformer, so the shaver output is separated from the mains and has no direct mains earth reference. That greatly reduces shock risk compared with a standard socket.

What does dual voltage 115/230V mean?

The socket has two outputs: 230V for UK and European shavers and 115V for US shavers. It suits a mix of appliances and is common in hotels.

Where can a shaver socket be fitted in a bathroom?

Outside the immediate wet zones and where it will not be splashed directly, following the BS 7671 zone rules. The exact position is for the installing electrician.

What back box depth does a shaver socket need?

Deeper than a standard switch. The BG Nexus Metal shaver sockets need a 47mm minimum box depth, so check the wall has room before fitting.