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Common Ground News

Can a consumer unit be mounted on wood?

Author

Mia Phillips

Updated on March 02, 2026

Can a consumer unit be mounted on wood?

NICEIC answer: It is a question of preserving the integrity of the consumer unit as this affords, by its construction and material, protection against the risk of fire to the surface to which it is mounted. SELECT answer: You can secure surface-mounted consumer units on to wooden back boards.

Regarding this, can a consumer unit be mounted sideways?

You are installing a brand new consumer unit in a domestic property but soon realise that the consumer unit is too big to fit in the same space as the old one. It will fit if you turn it on its side (i.e. rotate it by 90 Degrees).

Secondly, can you have 2 consumer units? Yes you can fit second consumer unit common when supplying showers and sheds you may have to use two lighting circuits as most light fitting need fusing to 6 amp. There are three ways to connect with henley block or from existing consumer unit and latter with approved cable or twin and earth.

Hereof, what height should a consumer unit be fitted?

Approved Document M recommends that in new dwellings, switches, sockets and other equipment should be located between 450mm and 1200mm from finished floor level, it also suggests that consumer units are mounted so that the switches are between 1350mm and 1450mm above floor level.

Can you fit a consumer unit yourself?

You can replace your consumer unit without disconnecting the power as long as you're careful. Also, if you want or need to replace the meter tails to the consumer unit, you must involve the electricity board who will wire them into the sealed meter for you.

What are meter tails?

Meter Tails
These are the cables that connect your meter to the cut out/service head. An electrician can provide meter tails and upgrade them when necessary. However, only your electricity supplier can connect the meter tails to your meter and the cut-out/service head.

Is changing a consumer unit notifiable?

You are absolutely correct, a consumer unit upgrade is classed as notifiable work under Part P of the building regulations as is any new circuit installed in a domestic environment.

What height should sockets be above floor?

The details of electrical fitting heights:
In new dwellings only, switches and socket-outlets for lighting and other equipment should be between 450mm and 1200mm from finished floor level. Consumer units should be mounted so that the switches are between 1350mm and 1450mm above floor level.

Can you put a consumer unit in a toilet?

The consumer unit (fuse box) would be fine as long as you can get to it from the hallway side and not from beside the toilet. Some careful thought on the toilet and waste, whether the waste pipe will exit under the toilet or out the back into the space where the electrics are.

Can plastic consumer units still be installed?

For the remainder of the year either plastic or metal consumer units can be installed in a domestic premise, although there is nothing precluding earlier compliance with the amended regulations. From 1 January onwards plastic consumer units can still be fitted but only in non-domestic installations.

Are old fuse boxes illegal?

In short No. Unsafe Yes, Non-compliant with the current regulations (BS7671:2008) Yes, but not illegal! If the fusebox is old and has fuse wire type fuses, it is worth upgrading it, as modern ones have RCD protection built in, which will literally save your life in the event of a fault.

Where is my consumer unit?

To break it down simply, the consumer unit is found at the point where the electrical supply enters your property from the electricity meter.

Can I change my consumer unit?

You can replace your consumer unit without disconnecting the power as long as you're careful. Also, if you want or need to replace the meter tails to the consumer unit, you must involve the electricity board who will wire them into the sealed meter for you.

Is a distribution board the same as a consumer unit?

Throughout the decades the references have altered, fuse board, distribution board, consumer unit. They are all effectively the same thing with different labels.

How long does it take to replace a consumer unit?

It usually takes around 3-4hours to replace the consumer unit and inspect the accessories, and then 3-4 hours to fully test the wiring and tidy and clean all the work areas.

How much does it cost to install a new consumer unit?

The cost of moving a consumer unit is around £250 to £500. However, this may increase if you require an electrical installation condition report, as this normally costs around £100 to £300 depending on the size of your property.

How is a consumer unit wired?

The modern consumer unit is the centre, or heart, of the wiring system in the home. The unit distributes the electricity, via fuses of one kind or another, to the different circuits in the house. The older fuse wires are being replaced gradually by their modern equivalent, the MCB or miniature circuit breaker.

What consumer unit do I need for a garage?

RCD Incomer Consumer Unit
An 'RCD Incomer' consumer unit is a special type of protection device, generally used in workshops, garages, garden offices and sheds which use small numbers of circuits.

Should I upgrade my consumer unit?

Basically speaking, any consumer unit without an RCD needs an upgrade. This doesn't always mean a whole new consumer unit so it is essential you speak to a registered, qualified electrician who can decide what needs to be done.

How do you wire a RCD into a consumer unit?

A circuit cable can then be introduced to the consumer unit. The live cable is fixed into the top of an MCB, while the neutral cable is screwed into the RCD neutral terminal block. The earth cable is then fed into the consumer unit and connected up to the appropriate MCB.

Do I need to change my plastic consumer unit?

No, when installing a new circuit to an existing installation, after 1st January 2016, providing there is a spare way on the existing consumer unit, or if you utilise an existing way, there is no requirement to upgrade the consumer unit from a plastic product to a new metal type.

How does a consumer unit work?

The modern consumer unit is the centre, or heart, of the wiring system in the home. The unit distributes the electricity, via fuses of one kind or another, to the different circuits in the house. The older fuse wires are being replaced gradually by their modern equivalent, the MCB or miniature circuit breaker.

What is a busbar in a consumer unit?

Busbar - A copper 'comb toothed' bar which electrically connects the 'circuit devices' to the 'isolation devices'. The busbar is cut to size by the electrician, when installing the consumer unit and 'plugs in' to the bottom of all devices.

What is a Henley block used for?

100A Single Pole Henley Block Terminal blocks are used to connect the incomming mains between the m..

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