New 2.9kw oven connection

[Steve T]

Hi,
I've got a new built in oven that requires connection to electricity. The oven has a dedicated 32amp RCD protected circuit, with 6mm cable. The old oven was connected via a cooker connection unit with 6mm T&E.

The new oven has a power rating of 2.9kw, and comes with a 1.5mm flex attached, which has bare ends.

What would be the best way to connect this?

The manufacturers instructions offer no help whatsoever, I think because they are in different languages and not specific to the UK.
Thanks for any replies

 

[Midwest]

Its up to you, I'm getting bit lost now. You had a conventional ccu, but want to use a flex outlet. Whats wrong with the old ccu?

 

[telectrix]

Its up to you, I'm getting bit lost now. You had a conventional ccu, but want to use a flex outlet. Whats wrong with the old ccu?

think he's concerned about getting 1.5mm flex to make a good connection in terminals designed for 6.0mm/10.0mm 7 strand.

whatever... if he don't get a shift on, dinner will be salad.

 

[Steve T]

Sorry for confusion, reason I did not want to use the CCU was because I would have to put the flex, and 6mm T&E into the same terminals, which doesn't give a very good connection. Hence why I'd prefer the 20 amp flex outlet.

 

[westward10]

now who said they are the same.

View attachment 40238

View attachment 40239

That in an interesting comparison Buzz because I have fitted these into NSB boards with no fiddling so perhaps I am mistaken.

 

[Midwest]

I expect there are thousands of electric cookers connected up, using the flex & 6mm T&E combo, with no issues. You could get some boot lace ferrules if its gonna give you sleepless nights, or go with your flex outlet.

 

[Steve T]

Think I'll just go with the flex outlet, 20amps rating should be more than sufficient

 

[Steve T]

That in an interesting comparison Buzz because I have fitted these into NSB boards with no fiddling so perhaps I am mistaken.

They do fit without fiddling, but they don't actually clip onto the DIN rail, even though they seem to.

 

[Deleted member 9648]

I'd not disagree with leaving it connected to the existing setup, no issue with that.However given the small cost and limited effort I'd replace the 32a mcb for a 16 as a preference but not a necessity.

I don't understand why though?

Simply because I prefer the protective device to be the nearest rating to the load. You'll often find appliance manufactures specify fuse ratings for their appliances as well, and despite the OCPD being there to protect the cable their instructions have precedence.

 

[Deleted member 9648]

Just to add to that, the infamous 3a fuse debacle for small domestic fans is a prime example of getting caught out by failing to follow manufacturers instruction.

 

[Toneyz]

This post is going around in circles since I posted last.cooker outlet/20A flex outlet. Just wait until Monday and you will know 100% from Electrium/Wylex.If you can't buy a new replacement there are online places that do discontinued MCB's if on ebay just watch out for fakes.

 

[buzzlightyear]

post #10&28 says it all!

 

[Midwest]

post #10&28 says it all!

You just like the sound of your own typing.

 

[Midwest]

Simply because I prefer the protective device to be the nearest rating to the load. You'll often find appliance manufactures specify fuse ratings for their appliances as well, and despite the OCPD being there to protect the cable their instructions have precedence.

'We' should take account of their instructions; I don't know how one would benefit from altering the circuit, as suggested, in these circumstances. The ocpd in the CU, is for the final circuit protection, not for an appliance.

If the oven manufacturer stated this oven must be protected a by a certain size ocpd, then fair enough. But the majority of oven manufacturers instructions, I've read do not. If the appliance is supplied with a connecting cable, then it would be suitable to carry the maximum load. There must be smaller csa wires inside an oven, that would not benefit from a 13A fuse.

I suspect the requirement to a 3A fuse, is to prevent the frying of a fans pcb, I might be wrong. But in this instance, the fan manufacturer requires a lower rated fuse, then that must be taken into account.

 

[telectrix]

You just like the sound of your own typing.

"pot" and "kettle" come to mind.

 

[Midwest]

"pot" and "kettle" come to mind.

I often get pulled up for my mistakes, just trying to share the love.

Orrrffhh to construct tonight's tea. Turning last nights chilli con carnie, into lasagne, with lashings of wine and wee drams. Tomorrow this will all be forgotten, and we can turn it into another love in.

 

[Wilko]

... If the appliance is supplied with a connecting cable, then it would be suitable to carry the maximum load. There must be smaller csa wires inside an oven ...

Correct !
I had an double oven and grill to relocate the other day (name deleted) that manufacturer's instruction was 6mm cable to be used. I had a quick look at the innards and it was running off 2 by 1mm feeds. I hooked up my 6mm, confident it was not the weakest link .

 

[Midwest]

I'm kinda surprised at the likes, dislikes etc to my posts. Its not like its rocket science. I'm not preaching no more than what's said been before. 'll say no more. I'm off to bed

 

[telectrix]

I'm kinda surprised at the likes, dislikes etc to my posts. Its not like its rocket science. I'm not preaching no more than what's said been before. 'll say no more. I'm off to bed

i 4 1 ain't give you a disagree whatever. me tired too so it's goodnite from me, and goodnite from him.

 

[Amp David]

It's an oven, so unlikely to cause an overload and it is therefore reasonable to omit overcurrent protection.
Is a short length of 1.5mm flex going to be protected against a short circuit fault by a 32-A MCB?
I think so, otherwise there would have been a lot of blown 1mm and 1.5mm cpcs on spurs from ring circuits in the days before RCDs, but I'll leave it to the proper electricians to discuss...

Couldn’t agree more. Why all this farting about swapping OCPDs.

 

[Amp David]

We’ve also fitted the newer wylexs into nsb boards, never an issue.

Are there different nsb breakers?

 

[buzzlightyear]

Are there different nsb breakers?

post bs3871 type 2 bs60898 type2 & the list goes on.