new oven

[taslaw]

I have just bought a neff 2.9kw single oven; it replaces an oven that was hard wired on to a dedicated oven circuit on a 32a mcb with 6mm cable. My electrician says that he will just wire the new oven onto the same system. I am no expert, but thought that the mcb is too big for this oven , would it not be prudent to reduce the size of the mcb? thanks.

 

[monkeyelectric]

Mcb is to protect the cable not overload for the oven

 

[telectrix]

that 32A MCB is sized to protect the 6mm cable. nothing to do with the rating of the oven. nothing to stop you downrating it though. if you are concerned, then you could put it on a 13A FCU.

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beaten by the monkey.

 

[taslaw]

thanks telectrix, i think i will ask him to do that.

 

[monkeyelectric]

that 32A MCB is sized to protect the 6mm cable. nothing to do with the rating of the oven. nothing to stop you downrating it though. if you are concerned, then you could put it on a 13A FCU.

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beaten by the monkey.

Thats the trouble with these monkeys, they can use their hands and feet to type

 

[monkeyelectric]

thanks telectrix, i think i will ask him to do that.

Just pretend i'm not here!

 

[Mork]

I would be reluctant to use a switch fuse on a 3 Kw load (you can but often see them burnt out ) its a dedicated circuit feeding a fixed load, use a 16 A mcb type b job done.

 

[taslaw]

sorry monkey, i thank you for your prompt reply.

 

[taslaw]

thanks for the other option mork.

 

[monkeyelectric]

sorry monkey, i thank you for your prompt reply.

Thats better

 

[Guitarist]

I have just bought a neff 2.9kw single oven; it replaces an oven that was hard wired on to a dedicated oven circuit on a 32a mcb with 6mm cable. My electrician says that he will just wire the new oven onto the same system. I am no expert, but thought that the mcb is too big for this oven , would it not be prudent to reduce the size of the mcb? thanks.

What do manufacturers instructions say regarding OCPD? These will have to be followed.

 

[Engineer54]

What do manufacturers instructions say regarding OCPD? These will have to be followed.

Not some of the manufactures instructions i've read you wouldn't!! lol!! Many of these instructions are based on European standards and wiring methods, rather than on your BS7671. Some, like the recently posted ''humidistat'' are just an outright joke!! lol!!

 

[varilite]

Change 32A breaker to16A

 

[Guitarist]

Not some of the manufactures instructions i've read you wouldn't!! lol!! Many of these instructions are based on European standards and wiring methods, rather than on your BS7671. Some, like the recently posted ''humidistat'' are just an outright joke!! lol!!

I agree with you, tbh. Some instructions are a joke.

 

[benthespark]

i bet the instructions dont even mention it down rate the mcb. arse covered

 

[GLENNSPARK]

why go to the cost of replacing the OPD for a 16B?...
just use the existing MCB thats in there....the cable is protected and you dont need to go to the added costs of replacing the existing OPD...

 

[PeterPan27]

No point changing to 16A .. Just added unnecessary expense.. The 32 with the 6 mm will still be fine

 

[varilite]

Changing to 16A will protect the equipment

 

[telectrix]

from what? her indoors burning the dinner again?

 

[monkeyelectric]

Changing to 16A will protect the equipment

But why?

 

[taslaw]

the instructions do not mention it, just say get a qualified sparky to fit.

 

[monkeyelectric]

the instructions do not mention it, just say get a qualified sparky to fit.

The circuit is absolutely fine as it is, no point in swapping mcb's for no reason, it'll just end up costing you money

 

[taslaw]

Monkey,
just spoke to my sparky and he confirms what you have intimated, i.e. the 32a mcb with the 6mm cable is fine, despite less load with the new oven. Many thanks to all that have helped with their knowledge. Joanne.

 

[monkeyelectric]

Monkey,
just spoke to my sparky and he confirms what you have intimated, i.e. the 32a mcb with the 6mm cable is fine, despite less load with the new oven. Many thanks to all that have helped with their knowledge. Joanne.

Well i'm not just a pretty face you know

 

[GLENNSPARK]

you`v to watch them monkeys...their paws get everywhere....