Yet another Oven / Hob connection question

[mfkent]

Hi guys,

I'll be replacing an old double oven and electric hob with a new single oven and induction hob.
Currently there is a 30amp breaker feeding a 2 gang cooker switch, from the switch there is a single cable that goes to the oven and then another cable twinned with it (twisted wires on the oven terminals!) that goes to the hob.
Should I get the current cooker switch replaced for a dual switch / socket type?

The oven has a total connected load of 3.68KW
The hob has a total connected load of 7.2KW

So my questions are.....

1. Is the 30amp breaker enough? Should I change it for a 40/45a?
2. Should I get the current cooker switch replaced for a dual switch / socket type? Will the 13A socket be suitable for the oven?


Thanks in advance,

Martin

 

[JohnW2]

The oven has a total connected load of 3.68KW ... The hob has a total connected load of 7.2KW
1. Is the 30amp breaker enough? Should I change it for a 40/45a?

By aplication of the concept of 'diversity' (which takes into account the fact that not all parts of oven and hob will be drawing current simultaneously), a 30A is more than adequate. I cannot, of course, tell you whether the cable used for that circuit is adequate, but hopefully it will be.

2. Should I get the current cooker switch replaced for a dual switch / socket type?

You probably should get the output of the cooker switch connected to a dual cooker outlet plate, from which one cable will go to each appliance.

Will the 13A socket be suitable for the oven?

That depends upon what the manufacturer says - does the oven come with a plug, or do the instructions say that it can be used with a 13A plug? Although 3.68kW is more rthan 13A, they might invoke the concept of diversity to allow it to be run from a 13A plug. However, it's probably better to do as I say above, and connect the oven, as well as the hob, directly to a dual outlet plate (without a plug). Others may have differing ideas about this!

Kind Regards, John

 

[mfkent]

Thanks for the reply John. I'll get a dual switched cooker plate / socket fitted, the missus hasn't decided on the oven yet so when she does I'll find out if it needs hard wiring or can run off a plug.

 

[JohnW2]

Thanks for the reply John. I'll get a dual switched cooker plate / socket fitted, the missus hasn't decided on the oven yet so when she does I'll find out if it needs hard wiring or can run off a plug.

You're welcome. Just to be clear, the cooker control unit ('CCU', with big switch for cooker(s) and maybe a socket) is a separate item from the dual output plate (which is fed via a cable from the CCU).

Kind Regards, John

 

[mfkent]

John, once again, thanks for the reply.

The current switch is like this:

http://www.qvsdirect.com/excel-45a-d-p-switch-with-neon-rectangular

If the oven and hob both need to be hard wired then I can leave the current switch and connect the appliances with one of these:

http://www.qvsdirect.com/45a-dual-connection-plate

If the oven can be plugged into a socket, then I could change the current dual gang switch for one of these:

http://www.qvsdirect.com/excel-45a-cooker-control-with-13a-socket-neon

then get a cable from there run to one of these for the hob?

http://www.qvsdirect.com/excel-cooker-outlet-plate

Thanks again

Martin

 

[JohnW2]

John, once again, thanks for the reply. The current switch is like this: http://www.qvsdirect.com/excel-45a-d-p-switch-with-neon-rectangular[/QUOTE]OK

If the oven and hob both need to be hard wired then I can leave the current switch and connect the appliances with one of these: http://www.qvsdirect.com/45a-dual-connection-plate[/QUOTE]Yes.

If the oven can be plugged into a socket, then I could change the current dual gang switch for one of these: http://www.qvsdirect.com/excel-45a-cooker-control-with-13a-socket-neon
then get a cable from there run to one of these for the hob? http://www.qvsdirect.com/excel-cooker-outlet-plate[/QUOTE]Yes, you could. I personally would probably put a dual connection plate there, anyway - just in case a dual was needed in the future. Also, as I suggested before, unless the manufacturer's instruction say that you mustn't, you may well be able to have the oven hard-wired to a dual outlet plate, even if it comes with a plug or says that it can be used with a plug. Your electrician could advise about that.

Kind Regards, John

 

[mfkent]

Fantastic, thanks Just got to get she who must be obeyed to make her mind up! She's not normally this slow at spending money

 

[JohnW2]

Fantastic, thanks Just got to get she who must be obeyed to make her mind up! She's not normally this slow at spending money

You're welcome.

Kind Regards, John