Induction/gas hob install

dvlznte · Jul 25, 2023

We have an install where the client has supplied an induction/gas hob combination unit. We have a 6mm cable supplying the hob, the induction part is 7kw max draw which is hard wired. The gas side comes with a 3 pin plug hard wired so it will need a socket. We wouldn't be able to have these on the same circuit because it is effectively a 10A socket on a 32A MCB. Can anyone see any issues having 2 supplies to 1 unit?

telectrix · Jul 25, 2023

spur off the 6mm feed to the hob. FCU with a 5A fuse. then to a socket for the gas ignition, ssimples.

timhoward · Jul 25, 2023

dvlznte said:
We wouldn't be able to have these on the same circuit because it is effectively a 10A socket on a 32A MCB

If that was a valid reason then these wouldn't be allowed:

[ElectriciansForums.net] Induction/gas hob install

I have in the past fitted one of these underneath as well in this situation and simply left them both turned on.

Another approach which is more elegant is to use a dual cooker connection unit. If you want no arguments from any future electrician then run 6mm to a single socket. The current draw from the gas hob ignition will be miniscule and the fuse in the plug will protect it.
I could construct an argument why < 6mm would meet the regs but sometimes it's simpler to make it obviously comply.

davesparks · Jul 25, 2023

telectrix said:
spur off the 6mm feed to the hob. FCU with a 5A fuse. then to a socket for the gas ignition, ssimples.

timhoward said:
If that was a valid reason then these wouldn't be allowed:
View attachment 109546

I have in the past fitted one of these underneath as well in this situation and simply left them both turned on.

Another approach which is more elegant is to use a dual cooker connection unit. If you want no arguments from any future electrician then run 6mm to a single socket. The current draw from the gas hob ignition will be miniscule and the fuse in the plug will protect it.
I could construct an argument why < 6mm would meet the regs but sometimes it's simpler to make it obviously comply.

The OP is in New Zealand