Month: October 2013

Wiring a Timer switch No Neutral Wire

Automatic light switch timers are wired into the mains lighting circuit.  However many of the homes in the UK do not have a neutral wire available at the switch.  So how do you connect them.

Wiring a timer switch neutral wire

First of all you need to know what type of wiring you have at the switch.

If your switch only has 2 wires and an earth wire – this is a switched live arrangement and there is no neutral wire available.

Many electrical timers require a neutral so that the switch can be powered without sending power to the load.  If you do not have a neutral at the switch box it means that the power source (line) does not come into that box and you are just switching the hot from another source.

A traditional switch only switches the live so it does not need the neutral.   If there is no neutral then unfortunately, youneed to keep reading.

Wiring with no neutral

timer switch wiring

wiring a timer switch neutral wire

The neutral wire is use to provide power to the light switch timer for the clock.  this does require that you have three wires at the junction box (plus an earth) .  If you only have two wires at the switch you have a switched live type circuit.  You will need to get a neutral wire at the switch in order to correctly wire and power the device.

Most homes in the UK don’t have a neutral wire and so timer switch become quite difficult to install. However adding a neutral wire is not that easy.  An electrician should be able to add a neutral wire for you but this often requires cutting into the wall to get the wire to the switch you require it for.



So how do you install your timer with no neutral wire?

The simplest way is to purchase a timer that does not need a neutral wire to operate.  This way you will not need to make any changes to the switch, and the timer will work with no neutral wire.

The mydome timer switch is not connected to your home electricity supply and does not rely on the neutral wore as a power source.  The timer uses two AA batteries to power the timer and mechanically switch the lights on and off.  This has the advantage that it can be used on the existing switch on your wall and requires replacing the existing switch.

It is Installed fitting the timer over an existing wall light – a small control wheel then turns the lights on and off by means of a control wheel on the rear of the unit to operate the switch manually.  The timer light switch can be used on single, double or triple switches and even allows the user to select which of the switches is operated via the timer.

Timer switch no nuetral required

Timer switch no neutral

British Gas Connected Homes – Timer switch

British Gas Connected Home Light Switch

On September 26th, British Gas Connected Homes Group hosted a pitch event & showcase for 25 start ups from around the world with innovative products or services in the home energy sector.

British Gas Connected HomeLight Switch Timer was selected to showcase our new product to the panel of industry experts which include Baroness Martha Lane-Fox of Soho; businesswomen; philanthropist and member of the House of Lords.

For more information on the British Gas Connected Homes Group and to view the other brilliant products featured in the event Click Here


Set up by British Gas in 2012, we were given a simple mission: to make the connected home a reality for everyone and not just the technophiles amongst us. We’re here to give customers more control over their lives and homes by providing products that are beautiful in their simplicity and design.

British Gas has entered the Connected home with new products for heating to plugs to sensors, Hive makes it easy to control everyday things from your phone.

Hive Light Switch