Replacing hard wired hob

[Dankwc2000]

I've purchased a new induction hob and it comes with a plug. The hob I am replacing is hardwired in and the terminal outlet box is likely to be hidden behind the fitted kitchen cabinet and not accessible. The hob isolator is located in an overhead cupboard. Any advice or recommendations on getting this installed is appreciated?

 

[ericmark]

I know this does not sound helpful, but even as an electrician, I have to read the instructions. There are a myriad of methods to configure an induction hob so the same hob and be used with 13 amp supply 32 amp single phase and 400 volts, three-phase, and 460 volts split phase.

I can see the hob seems to be designed for the French split phase supply, and well as the British single phase, but to advise without reading the instructions would be wrong.

 

[EFLImpudence]

That would appear to be a picture of the present hob.

 

[DetlefSchmitz]

Someone must have been able to fit the old hob. By taking it out there is likely to be a cable that could connect to the new one. You don't have to use the new plug, and in fact it may be better not to.

 

[EFLImpudence]

As for the new hob:


Well, you could remove the flex and attach the existing supply cable to the new one, or

you will have to somehow access the connections, or

buy a different hob; one without a plug.

 

[Dankwc2000]

As for the new hob:


Well, you could remove the flex and attach the existing supply cable to the new one, or

you will have to somehow access the connections, or

buy a different hob; one without a plug.

The photo is of the old one wired in and it shares the RCD with the oven. The new hob is a bosch induction hob with a molded plug. Is cutting off the plug and wire it in an option?

 

[EFLImpudence]

Is cutting off the plug and wire it in an option?

If you don't want to dismantle the cabinets then what else can you do? Assuming the internal hob connections are accessible.

 

[Mottie]

The new hob is a bosch induction hob with a molded plug.

Induction hob with a plug? I didn’t think an induction hob would be less than 3Kw. How many rings does it have?

 

[EFLImpudence]

They just limit the current at any time.

 

[Dankwc2000]

Induction hob with a plug? I didn’t think an induction hob would be less than 3Kw. How many rings does it have?

It has 4 rings.

 

[Mottie]

It has 4 rings.

What’s the power of it then? Look on the label. Ours had 5 and it was 7.4Kw

Edit: Just looked at Bosch hobs on line and I see that they do one with a plug rated at 3.7 Kw. I didn’t think you could go above 3Kw with a plug fitted. I suppose as EFL says, it must limit the max power.

 

[Mottie]

They just limit the current at any time.

So does that mean you couldn’t, for example, use three or more burners at full power?

 

[EFLImpudence]

So does that mean you couldn’t, for example, use three or more burners at full power?

You can turn them all on but it would take it in turns supplying them. I am not sure if this is noticeable.

Even an ordinary hob is, because of the thermostat cycling, more often off than on and might also have an integral oven.

After all a cooker might be 15kW which is 62A and you can have that all on at once.

 

[Mottie]

You can turn them all on but it would take it in turns supplying them. I am not sure if this is noticeable.

Even an ordinary hob is, because of the thermostat cycling, more often off than on and might also have an integral oven.

After all a cooker might be 15kW which is 62A and you can have that all on at once.

From memory, our one had two neutrals and two lives presumably feeding different sides of the hob. The power goes from 1-9 and you can then turn any of them up higher to get a 'P' which is quick burn or something but you can only do that to any one burner on each side.

 

[EFLImpudence]

From memory, our one had two neutrals and two lives presumably feeding different sides of the hob.

Yes, for Europe where they have 16A circuits (~3.7kW).

The power goes from 1-9 and you can then turn any of them up higher to get a 'P' which is quick burn or something but you can only do that to any one burner on each side.

Ok, did that one have a plug?