13A hob and 32A oven on same circuit

[hadley1]

I intend to install a 32A 4.8kW oven and a 13A 3.7kW induction hob on an existing 40A breaker with 6mm cable.

Will this be OK?

 

[hadley1]

also noting that the kitchen ring main circuit is 32A 2.5mm.

 

[loz2754]

4.8kW is around 21 amps. 3.7kW is around 16 amps. I'm not sure where you are getting those figures from.

Also, 6mm² flat twin and CPC cable is able to carry 47 amps, but only if clipped direct.
If it's in trunking, or passes through any insulation for any of its length, then it can severely reduce the capacity to well below 40 amps. It may be necessary to replace the 40 amp breaker with a 32 amp breaker.

That being said, after applying diversity that is normally allowed for cooking appliances, the total load would work out at around 18 amps.

 

[hadley1]

4.8kW is around 21 amps. 3.7kW is around 16 amps. I'm not sure where you are getting those figures from.

Also, 6mm² flat twin and CPC cable is able to carry 47 amps, but only if clipped direct.
If it's in trunking, or passes through any insulation for any of its length, then it can severely reduce the capacity to well below 40 amps. It may be necessary to replace the 40 amp breaker with a 32 amp breaker.

That being said, after applying diversity that is normally allowed for cooking appliances, the total load would work out at around 18 amps.

Thanks Loz.

The amps I stated are taken from the seller's website against "Amperage".

The 6mm cable runs from the CU through a wall and then is clipped to a wall (underneath cabinets prior to going up through a dot and dab wall cavity to an oven switch.

It sounds like the existing circuit will be sufficient to power both of these. There is a plug on the cooker switch, will this also be OK? So supply to the oven, hob and single socket will suffice?

 

[littlespark]

Yes… it’ll be fine.

They normally state a 16A or 32A circuit as that is the standard sizes of circuit breaker