Oven and hob

[Bigjohnny5]

I'm currently fitting a new kitchen I have removed my old range cooker that was fed from a 10mm t+e cable 32a mcb to a 45amp isolater then 6mm t+e to the cooker.
I'm now wanting to fit
A induction hob 7400w (30.83amp) ?
A single oven 3450w (14.375amp) ?
My question is can I use the existing circuit for both of my new appliances?
I'm thinking I can put a 45mcb on the existing 10mm cable but then how can I split this at the cooker switch and allow for the 16amp oven ?
Or is it a case of getting a new dedicated circuit for the oven installed and use the existing for the hob ?

 

[terryplumb]

No ,don't change the MCB.
You can connect both ,to the existing circuit ,via a dual appliance connection unit .

 

[securespark]

Diversity allows you to connect an oven and a hob to a 32A supply.

 

[Bigjohnny5]

Ok great thank you
So I still have the issue of a 16A oven to connect to the same 45 amp cooker point as the induction hob
The instructions say must be hard wired to a16a supply

 

[flameport]

Dual outlet plate at the end of the existing cable: https://www.tlc-direct.co.uk/Products/AA45DCOP.html
A box may be required if there isn't one already.

4mm² HO7 flex to the hob, 2.5mm² HO7 flex to the oven.

Keep the 32A MCB.

 

[Bigjohnny5]

That all sounds perfect for me so happy days.
Just to satisfy my curiosity do I not need a 16a breaker for the oven given it will now be fed from a 32a supply?
Also the hob on full power will presumably draw 7400 watts around 30.83 amps will applying the diversity factor be adequate to allow for the oven also at 3450 watts ?

 

[terryplumb]

It needs a minimum 16 amp .
The appliance draws whatever current it needs ,the circuit doesn't
" Deliver" it with 32 amps.
Both hob and oven can be wired into your circuit ,as all have advised above.

 

[flameport]

Also the hob on full power will presumably draw 7400 watts around 30.83 amps

It would, but only for a few minutes.
A 32A circuit breaker doesn't trip at 32A.
Even at 45A, it's still likely to be 10+ minutes before it trips, by which time the hob/oven elements won't all be on at the same time.