Oven power supply advice needed

dreamypuma

Hi all,

I'm in the process of buying kitchen appliances for my parents new kitchen. I have my eye on a Neff Series 1 B12M42 single built-under oven.

The current oven that we are replacing runs from a 13a 3pin plug. Now the Neff is quoted as being 2.85kW. Am I correct in thinking that this will also run from a 13a 3 pin plug?

The way I have come to this assumption is by dividing 2850w by 230v= 12.39a

I'd be grateful if someone could confirm that I'm doing this right. Tried calling Neff but they were pretty useless.

System

i could be wrong but i thought an oven had to be set up seperately on a 45a socket

Hintza

I'm no expert either but I think you need big cable. Speak to a sparky.

Homersimpson

The OP is correct, on a purely resistive load (which an electric oven is to all intents and purposes) you simply divide the power in watts by the voltage and it gives you current in amps.

To double check ask the supplier if the oven comes with a 13A plug on it, if so then it can't be anymore than 13A!

The reason for large cooker power supplies is that the electric hobs can be quite big (power wise). If the OP has a gas hob (with only an electric ignition) then they should be ok.

keystone

A single built in oven can be fed via a 13A socket.

A double cannot and requires its own dedicated supply.

A cooker likewise requires its own dedicated supply.

Cheers

dreamypuma

Homersimpson wrote: »

The OP is correct, on a purely resistive load (which an electric oven is to all intents and purposes) you simply divide the power in watts by the voltage and it gives you current in amps.

To double check ask the supplier if the oven comes with a 13A plug on it, if so then it can't be anymore than 13A!

The reason for large cooker power supplies is that the electric hobs can be quite big (power wise). If the OP has a gas hob (with only an electric ignition) then they should be ok.

Thanks, this is pretty much what I thought. The hob is gas, with an electric ignition, so my only concern is the oven. Don't fancy having to pay to have a new connection back to the mains board.

None of the suppliers seem to be able to confirm the oven is supplied with a 13a plug, which is why we tried Neff directly. They too were equally evasive, and would only confirm the Watts.

moonrakerz

From the installation instructions for a similar Hotpoint oven:

"Power cable supply connection to the electrical
mains:
We recommend you use a power supply cable which
is long enough to allow you to take the oven out of its
recess in the event of maintenance operations (only
use HAR - H 05 - RRF quality cables fitted with a plug
conforming to the regulations in force.
The plug must be accessible at all times."

http://www.hotpoint.co.uk/hotpoint/_pdf/manuals/19503639406_UK.pdf

This item comes without a cable, so you would have to supply your own cable and connect it to the cooker terminal box one end and 13A plug the other.

I would check that all the connections are really tight in the plug, if there are poor connections the plug can overheat.

CKdesigner

Hi

Yes technically you can simply plug a 2.85kw oven in but modern 'best practice' would suggest not. Generally a house would have a downstairs socket ring main back to the consumer unit, this breaker is 15amp so it wouldn't leave much additional power for other items being used downstairs at the same time as the oven. So I would suggest you do invest in a dedicated supply.

CK

dreamypuma

CKdesigner wrote: »

Hi

Yes technically you can simply plug a 2.85kw oven in but modern 'best practice' would suggest not. Generally a house would have a downstairs socket ring main back to the consumer unit, this breaker is 15amp so it wouldn't leave much additional power for other items being used downstairs at the same time as the oven. So I would suggest you do invest in a dedicated supply.

CK

The Kitchen is on its own ring main, I'll need to check the size of the breaker. I shouldn't think it is an issue as the house has used an oven on a three pin plug for the last ten years (since built) without an issue.

roddydogs

But if its got a 13amp cable, you cant hard wire that, can you?

paulpud

A ring main is usually fed via a 32 amp mcb / 30 amp fuse so a 13 amp load shouldn't be a problem, even less so if the kitchen is on its own ring main.

Although there is nothing wrong with plugging a single oven into a socket outlet, the connection could be improved by replacing the socket with a switched fused spur and connecting the flex of the oven into this.