Originally Posted by Sparky-s
Depends on the oven you have also. Most ovens use feck all and are only fed by a 2.5 flex looped from the hob. Especially if it's inbuilt.
What size is your cooker cable?
It should either be 6sqmm or 10sqmm (thicker than 6sqmm) depending on how far away your main board is.
Either way the 32Amp breaker should be up to the job in an existing installation.
Remember it does have a thermal overload, so it does allow it to go over slightly.
Where it was a new installation with that spec, I would install two seperate circuits.
We have for example a double oven and an induction hob at home, granted not all rings are on full blast at the same time, but the breaker has never tripped.
Its pretty much the same as an instant shower rated at 9kw at full power.
If any human was so step infront of a shower on full they would be scalded. So generally 9kw of juice is never used.
40amps is the next size up and is not recommended by the ECTI rules.
The breaker is there to protect the cables remember.
Right now the cable is 6mm
The oven is rated as 5.5kw
The hob is rated as 7.2kw
so by my calcs thats about 23 +32 = 55amps
I guess thats also with everything on full power (self cleaning oven, all the rings on full)
So that says to me that I really need two 6mm cables on two 32amp mcbs
Am I correct?
Thanks for your help...
Lex, an induction hob is one that uses a moving magnetic field to generate heat.
The heat is generated in the pan, not the hob so there is less energy wasted (about 85% efficient versus 40 odd)