20 Year Old Contactum CU MCB's

[bailes1992]

Need to add an extra MCB in a 20 year old Contactum CU fitted in my Grandmothers house. The board is a Contactum P6R.

It has flat faced MCB's, does anyone know if the newer curved face MCB's will fit? Or of an alternative MCB that will fit?

I have a stock of Schneider, Dorman Smith & MK breakers so I have no doubt I have something that will fit.

 

[buzzlightyear]

how is Bridgend, not been their for a long time ,now what rating
of MCB do you require .

 

[bailes1992]

how is Bridgend, not been their for a long time ,now what rating
of MCB do you require .

16A or 20A MCB. A single socket is required just below the CU, easier to put it on a 2.5mm radial than try to split the ring.

Is there much else to say about Bridgend other than 'meh'. It's only selling point is it's half way between Cardiff and Swansea and you can be in Bristol in an hour!

 

[buzzlightyear]

16A or 20A MCB. A single socket is required just below the CU, easier to put it on a 2.5mm radial than try to split the ring.

why are you doing that ,just put the cable in has a spur from the ring !

 

[bailes1992]

why are you doing that ,just put the cable in has a spur from the ring !

There's no nearby socket or spur on the ring to spur off without chasing walls and liftng floorboards!

Not what my 89 year old grandmother will want.
New socket is going in directly below the boxed-in CU so a little YT1 down the corner of the room should be subtle and a clean install.

 

[buzzlightyear]

has I said ,why .

 

[Highresdis]

I think buzzlightyear meant that it's perfectly acceptable to add the spur from the existing RFC MCB.

 

[bailes1992]

Ah, really? I don't know why, I always thought that would be a no-no despite the fact I can't think of any technical reason for it.

 

[buzzlightyear]

I think buzzlightyear meant that it's perfectly acceptable to add the spur from the existing RFC MCB.

I have spelled it out no clearer .

 

[buzzlightyear]

you need to read the Regs page 425 APPENDIX 15 from the BGB.

 

[polo1]

Rcd/rcbo for additional protection?

 

[buzzlightyear]

RCD socket on the end.

 

[bailes1992]

Rcd/rcbo for additional protection?

The board has a 100A 30mA RCBO as the main switch.

 

[telectrix]

you laffin' then. just spur off the existing RFC at the MCB.