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Hi all,
I am looking a installing a new supply to an out building, but very limited in space in electrical cupboard.
Could you use a double pole mcb in place of a switched fused disconnect ?

If not could you please enlighten me as to why.

Thanks all.
 
Hi all,
I am looking a installing a new supply to an out building, but very limited in space in electrical cupboard.
Could you use a double pole mcb in place of a switched fused disconnect ?

If not could you please enlighten me as to why.

Thanks all.[/QUOT
Not in your CU because the CU will be single pole so a DP wouldn't compute
 
Let me know your location I'm willing to visit and advise if you like.
 
very limited in space in electrical cupboard.
Could you use a double pole mcb in place of a switched fused disconnect ?

If not could you please enlighten me as to why.

Thanks all.

How big is the incoming supply and the new supply you are installing?
Possible reasons for choosing a fuse over an MCB are a high level of fault current or the need for discrimination.

Why do you need the DP MCB?
 
The problem with using MCBs upfront like that is discrimination, sorry... selectivity.

When you say space is limited, how much room do you have available? A picture may help.
 
Allegedly the DNO's don't like you putting your stuff in 'their' meter cupboard. Bit like fake Earth Moon landings or the Flat Earth. Could enquire with them though.
 
wish I hadn't offered to help now
 

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