Assessment / Install questions

[Mat-sparks]

Hi All,

I soon have my Assessment with Elecsa (1st one) a friend of mine needs some work doing so am going to take advantage of this and use it as my Major works...

I have a couple of questions though.. (as I am obviously nervous and worried about covering everything correctly)

My friend needs his new hot tub wiring up...

Hot tub requires (according to rating plate) a 230-240v 16a class c breaker. This is fine, I understand this.
My problem comes in the form of my friends CU being obsolete, so obtaining MCB's for it is a pain anyway let alone finding a Class C.

So The options are, Complete consumer unit change - Friend not so keen on this, which is understandable

Try my luck with a B type which I can get 2nd hand (assessor may not like this if he notices the rating plate says a C)

I could (and this is what I will probably do, subject to peoples opinions) fit a 32a type B to the spare way in the CU, then run 4mm T&E to a small garage style consumer unit which I will locate next to the original CU and in this fit a 16a type C. Then from this run 2.5mm armoured down to Garden and straight into rotary isolator that is supplied with Hot tub.


Or am open to suggestions.

Cheers

 

[Brendan976]

If it states on the instructions to use a type c then that's what you should install. No point in giving them ammunition to fail you on. The bgb says follow the manufacturers instruction.
ben

 

[Spoon]

I take it you dont fancy tapping off the incoming tales, using henly block, for the new CU?

 

[Mat-sparks]

Yeah reading that all back it does sound a bit silly.
So as my firend doesn't want to replace the consumer unit, which I can't blame him on, as it's only around 8 yrs old and has RCD protection ETC, the only thing for it really is the seperate Consumer unit.

 

[Spoon]

Just out of curiosity, what make is his CU?

 

[telectrix]

can't see a 8 year old CU being obsolete. as spoon says, what is it? and a pic. would help here.

 

[Mat-sparks]

Just out of curiosity, what make is his CU?

Its a Siemens stratum 200

- - - Updated - - -

can't see a 8 year old CU being obsolete. as spoon says, what is it? and a pic. would help here.

Only going off what I've read elsewhere if I'm honest

 

[Mat-sparks]

I take it you dont fancy tapping off the incoming tales, using henly block, for the new CU?

No, I don't see as it really warrants the need of getting the supplier out to pull fuse.

 

[telectrix]

here:

http://www.thefusecompany.co.uk/

£9.99

 

[GLENNSPARK]

just had a look at an image of the siemens stratum 200:



the MCBs look like 3871s

go for a sub board & henleys here for this proposed install....

 

[Mat-sparks]

here:

http://www.thefusecompany.co.uk/

£9.99

Am I being thick? The link is just to home page?

I've typed in the name of the CU and Siemens type C and nothing??

 

[Mat-sparks]

just had a look at an image of the siemens stratum 200:

View attachment 20146

the MCBs look like 3871s

go for a sub board & henleys here for this proposed install....

his unit looks slightly different to this but the MCB's are the same.

I really don't fancy doing it that way I I'm honest! I think it's a lot of work to fit a supply a 16a supply.

 

[gazj82]

I have a second hand C20 and a new C40 for one of these on the shelf. £10+postage and its yours

 

[Spoon]

Am I being thick? The link is just to home page?

I've typed in the name of the CU and Siemens type C and nothing??

Pick SIEMENS MCB / RCBO from the MCB's list on the right hand side and see if any are suitable.

 

[Mat-sparks]

I have a second hand C20 and a new C40 for one of these on the shelf. £10+postage and its yours

Cheers but I need 16a.

 

[stitch]

Am I being thick? The link is just to home page?

I've typed in the name of the CU and Siemens type C and nothing??

Down on the right hand side in the orange part, Siemens MCB/RCBOs are there to select.

 

[GLENNSPARK]

I have a second hand C20 and a new C40 for one of these on the shelf. £10+postage and its yours

any spare ways on the protected side?
can it be reconfugured if not?

 

[stitch]

Got there before me Spoon.

 

[GLENNSPARK]

Cheers but I need 16a.

what CSA cable are you using?

 

[Mat-sparks]

Pick SIEMENS MCB / RCBO from the MCB's list on the right hand side and see if any are suitable.

No 16's on there! Is Type 3 the same as type C?