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Charge point refused due to fuse size?

charge point fuse

Does anyone know the size of their main house fuse?

I agree, its not something most people give a hoot about usually.

Until you need an electric car charge point fitted that is. Which will be lots of us soon, because of the governments impending 2030 ban on new sales of petrol and diesel vehicles.

But why should the size of your main house fuse matter?

Well, it’s all about the type of appliances you have connected to your fuse box (also known as the consumer unit), and the loading this creates on your electricity system.

Most modern houses have the maximum main fuse available (which is 100amp). But some older properties will have an 80amp or even 60amp fuse fitted.

Why is this an issue?

Well, imagine you have an electric power shower fitted and an electric hob, each of these require a 32amp fuse to operate, which is a combined 64amp if used on full power together.

It’s unlikely you’ll have everything on full at the same time, but it won’t take many other smaller house-hold devices to be operating before it trips a 60amp main fuse.

So, adding an electric car charge point with its own 32amp fuse (in this instance) will be refused by your electricity network provider.

Is an 80amp main fuse any better?

Yes, but you’re still likely to require a load management device, (which regulates the power going to the charger) before you’d be able to have a car charger fitted.

Even 100amp main fuse properties, with a sauna or hot tub fitted, along with power showers and an electric hob, may also require a load management device too.

Some good news though. If you want an EV charge point fitting and your electricity network provider say your 60amp fuse needs upgrading, they’ll upgrade it to 80amp for free.

…and as your chosen EV charger installer, we’ll help you through the process.


Alison Whitfield

News Categories
1 April 2021
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Electric Vehicle Homecharge Scheme

The scheme is currently open to applicants that:

  1. Rent their house or bungalow.
  2. Own or rent an apartment / flat.
  3. Are the landlord of a domestic rental property.
  4. Are a social housing provider.
  5. Has dedicated off-road parking at the property.
  6. Own or have ordered a qualifying vehicle.
  7. Have not previously claimed an OLEV grant.

Not sure if you are eligible?

Contact us to discuss your individual requirements.

Standard installation terms

  1. Fitting of an EV charger on a brick wall, or to another suitable permanent structure.
  2. Up to 10 metres of cable, run and neatly clipped to the wall between the electricity supply meter/distribution board and the charging unit.
  3. Supply meter/distribution board on the inside of an outside wall.
  4. Routing the cable through a drilled hole in a wall up to 500mm thick (if required).
  5. Fitting & testing of electrical connections & protections required for the EV charger.
  6. An additional three-way consumer unit (if required).
  7. Installation of a Type C MCB and a Type A RCD or a type A RCBO.
  8. No groundworks 

Not standard installation?

Contact us to discuss your individual requirements.