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Electricity Demand Switches

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Technical expertise required

Please note that you need an electrician or somebody competent in electrical DIY to install this.

Electricity Demand Switches

A demand switch inserted into selected house circuits will greatly reduce electric fields when you do not need to use electricity on a circuit (e.g. the downstairs lighting circuit at night). This is especially useful while you sleep when low levels of EMFs are necessary for an optimal immune system. People with ES will find demand switches helpful in regulating their electricity supply to reduce electric fields at all practicable times.

£169.32 (inc. vat)
In stock:

Electricity Demand Switches - Further Information

Technical specifications

Voltage / capacity: 230 V, 16 A continuous
(2300 W max filament lamp load due to start current)
Mechanical durability: ~10 million operating cycles
Residual ripple: < 8 mV (typically < 4 mV
Building biology compatible DC voltage (max 8 mA / 230 VDC)
Single-poled disconnection
Two year guarantee

A reliable Demand Switch optimised according to building biology criteria can really help with reducing your exposure to electric fields from your house wiring. Experts recommend fully switching off the mains electricity ("isolating the mains") as the first and most important technical step to be implemented when reducing exposure to alternating electrical fields.

Our Demand Switch is installed in modern DIN consumer units (distribution boards) or next to older fuse boxes, and it is wired in-line with the circuit to be protected. When there is no load on the circuit, that is when everything is switched off, the Demand Switch automatically disconnects the 230 volt "live" line at the fuse box/consumer unit which removes the high-voltage 230 volt wire that snakes around through the walls ceiling and floors. When any switch or appliance on the circuit is turned on, it instantly restores power.

We only supply 16 amp demand switches which are suitable for both light and radial power circuits. We do not approve of "ring mains" wiring as they are a major cause of elevated (higher than usual) EMFs in many UK homes. It is easy to "split" a ring circuit about half way round by removing one of the connections. This changes it into two 16 amp radial circuits which can each have a demand switch fitted.

We strongly advise reading our freely downloadable House wiring and EMFs booklet before starting work on making changes to your house wiring. Demand switches are particularly useful for reducing the electric field in limited places (e.g. bedrooms), but for the whole house a better (though more expensive) long-term solution would be to fully re-wire the building using electrically screened cable.

In our opinion (derived from lots of testing and measurements) the order of importance that circuits should be fitted with demand switches to reduce electric fields are:

Downstairs lighting (which greatly affects bedrooms as the wires are run under the upstairs floorboards)
Upstairs lighting
Upstairs power sockets circuit - here one 16 amp demand switch can usually protect two 16 A radial circuits as it is rare nowadays that people plug in more than about 12 amps total load upstairs.

Safety: The Gigahertz Solutions Demand Switches were the first "decouplers" ever to be VDE certified (the Association for Electrical, Electronic & Information Technologies), fulfilling strict safety regulations. VDE identification number: 40000677

Practical efficiency: The Gigahertz Solutions Demand Switches have been installed by many experienced electrical engineering technicians for many years. They are on the recommendation lists of renowned building biologists and are in use in thousands of households every day.