6,2kW hob and 2,5kW oven? 16A fitting?

peter666_2

Is a 16A over hardwired to the 45A connection unit, same as the 32A ovens?

Existing installation is oven+hob plate connected to the same connection unit, then to cooker switch and then to 40A mcb in the fuse box. 6mm cable, 6-8m tops from cooker switch to the fuse box. No option to rewire anything.

Basically the hob plate we chose (hotpoint hr612ch) says 6200W and 27,8amp fuse in data sheet. These 2 numbers don't look right on the manufacturer's data sheet. I thought you'd divide by 240V (or even 230V for European). Then the oven (beko Pro BXIM35300X) is 2500W and 16amp as per Curry's website. On manufacturer's website it says in the manual it's 2300W 13amp oven.

Will that work on the above installation or do I need to go for a different oven + hob plate with lower total kW/amp?

jk0

I think I replied yesterday, didn't I?

FreeBear

jk0 wrote: »

I think I replied yesterday, didn't I?

Indeed you did - https://forums.moneysavingexpert.com/discussion/5906175/help-new-2-5kw-oven-6-7kw-hob-40a-fuse

Reposting the question doesn't change the fact that a 40A breaker on a 6mm² cable is wrong (should be 32A max).

peter666_2

Yes you did and thanks for that.

The electrician is going to come in next week and I need to order the appliances beforehand so after yesterday we found a different hob plate.

However it's still a bit confusing on the data sheet for the oven for example. It says it's a 6200W hob plate with a fuse required 27,8A. If you divide 6200W by 240V (or even 230V) you get a completely different value than 27,8A, 3amps lower.

The oven is 2,3kW and again in the data sheet it says it requires 13A fuse. Again, dividin by 240V we get 9.6A

So I'm trying to understand if I order the above mentioned hob plate and oven, will it work on that installation? It's 0,5kW less than what you looked at yestarday.

shaun_from_Africa

peter666 wrote: »

It says it's a 6200W hob plate with a fuse required 27,8A. If you divide 6200W by 240V (or even 230V) you get a completely different value than 27,8A, 3amps lower.

The oven is 2,3kW and again in the data sheet it says it requires 13A fuse. Again, dividin by 240V we get 9.6A

The ratings for the appliances (6.2kW & 2.3Kw) will be what they use whilst running and they will draw roughly what you stated (24A and 9.6A).
However, when you first turn on the hob or oven, there will be an initial current draw which can be a fair bit higher than that drawn during normal use so the fuses or breakers will have to allow for this.

peter666_2

shaun_from_Africa wrote: »

The ratings for the appliances (6.2kW & 2.3Kw) will be what they use whilst running and they will draw roughly what you stated (24A and 9.6A).
However, when you first turn on the hob or oven, there will be an initial current draw which can be a fair bit higher than that drawn during normal use so the fuses or breakers will have to allow for this.

Ok, so this basically means that I will have to look for a different set of appliances, especially when it comes to the hob plate. The 27.8A in hob manufacturer's data sheet and added 13A from the oven equals 40.8A. The fuse is 40A.

Am I corect here or not?

jk0

Only if you act like a jerk and turn everything on full at once.

peter666_2

Cool, thanks for your replies on both threads

FreeBear

peter666 wrote: »

Ok, so this basically means that I will have to look for a different set of appliances, especially when it comes to the hob plate. The 27.8A in hob manufacturer's data sheet and added 13A from the oven equals 40.8A. The fuse is 40A.

Just had a look at my setup - Induction hob rated at 7KW, oven, nominally 2KW - Both running off the same circuit. Fuse (mcb) is 32A and has never tripped. Perhaps if I run all four rings at full capacity with the oven on full blast, the breaker might trip after an hour or so.

peter666_2

Thanks for your reply FreeBear