New electric oven - issue with fuse rating/wiring

[py_6294]

We currently have a single integrated oven and a separate induction hob. Each has its own 45amp red switch in the kitchen.

The consumer unit has 2 "cooker" parts both labelled as B32. The corresponding cables are 6mm grey.

We are hoping to get a larger freestanding electric range style cooker with its own induction hob. However, the one we have been looking at has an "electrical connection" of 15400 watts, and a "fuse rating" of 43 amps. The question is therefore whether the existing set up is sufficient and safe?

This doesn't appear to be an uncommon scenario on various forums and attracts differing opinions so I was hoping to have some up to date thoughts

Many Thanks

 

[ProDave]

Simple answer is no. You would need a single 10mm cable for the new range. What is the possibility of pulling a new 10mm cable through from the cooker position to the consumer unit?

 

[SPECIAL LOCATION]

I was hoping to have some up to date thoughts

Many Thanks

Unless the manufacture has some more up-to-date guidance documentation that you haven't provided a link to.....?

Then it looks to me as though they recommend a 10mm cable and a supply capable of 43amps for a single phase supply..??

But you say that your current arrangements are 6.0mm cable and a 32amp supply...
which are both too small!!!

So that is about as up-to-date as I could suggest???

 

[Andy™]

cables can be run in parallel so it may be possible to use both existing 6mm as one feed on a larger MCB. you'll need to get someone competent in check the circuits properly to see if it can be done and to do the work

 

[mort2376]

Agree with Andy. A new cable is the best option, but nothing wrong with using 2x6mm in parallel on a single 45a / 50a breaker.

 

[runningpiglet]

15400 watts at 230V is 67amps. 43amps at 230V is 9890 W - so the manual ratings are a bit inconsistent?

 

[Murdoch]

What make and model is the oven?

 

[ProDave]

cables can be run in parallel so it may be possible to use both existing 6mm as one feed on a larger MCB. you'll need to get someone competent in check the circuits properly to see if it can be done and to do the work

Best of luck getting two 6mm t&e into a the input terminals of a 45A DP switch and one 10mm out, in a standard back box.

 

[binky]

Best of luck getting two 6mm t&e into a the input terminals of a 45A DP switch and one 10mm out, in a standard back box.

You would have to relocate to an adjacent cupboard. But that would leave 2 redundant switch points, not ideal. .

Far easier to buy a different oven that suits the existing supplies.

 

[Andy™]

15400 watts at 230V is 67amps. 43amps at 230V is 9890 W - so the manual ratings are a bit inconsistent?

diversity...

 

[Andy™]

Best of luck getting two 6mm t&e into a the input terminals of a 45A DP switch and one 10mm out, in a standard back box.

that's a complication for someone else

if there lucky, both feeds may be exposed behind kitchen units and so could be terminated into a box with a 10mm out. without looking at it propery its all just a guess

in reality, chances are it'll be fine with a 6mm and a 32a MCB and never trip. not recomended though