On Friday, 18 January 2019 22:59:11 UTC, sm_jamieson wrote:
On Friday, 18 January 2019 20:42:15 UTC, sm_jamieson wrote:
On Friday, 18 January 2019 19:55:43 UTC, wrote:
On Friday, 18 January 2019 17:04:50 UTC, sm_jamieson wrote:
I have a MK Sentry split load CU that I am turning into an all-RCBO board,
so I need to join the neutral bars together.
The existing board had 4 neutral sections with the first two joined
together by a rather thin-looking U shaped link.
The neutral bars are supposed to be able to take 16mm cable.
Can I just join them together with 16mm rigid cable like the stuff you
use for large earth connections (obviously will be sleeved in brown) ?

Yes, although to comply with type approval it should really be a genuine MK part.

http://www.sparkiespares.com/index.p...ct&id_la ng=2

If you do make your own, some will say it should have crimped ferrules.

Owain

I don't think that cable will fit in the neutral terminal block, it is for joining switches and only fits in the top of the switch which has much wider "holes".

Surely crimped ferules is only for fine strand cable ?
The point about using the 16mm singles cable is that being made of a few thick "wires" it does not need a ferrule.

Simon.

The factory made split load 16mm tri-rated cables have on one end a rectangular ferrule about 2mm x 8mm, and on the other end something like in the following link, although this does not look like a crimp, more like a solder item.
https://www.ebay.co.uk/p/Cembre-A3-p...1094519&chn=ps

Ah, this says they are crimps:
https://uk.rs-online.com/web/p/crimp...ctors/8092366/
The magic phrase is 16MM UN-INSULATED REDUCING PIN CRIMP.

But when crimp the shape seems to turn into an indented hexagon, so that is a heavy duty crimping tool.
I could find a local electrical firm that could modify my spare split load cables by putting one of those on the other end.

I'm not sure about reducing the conductor size so much, but that seems to be the way it is done. I suppose its only a few millimetres at the reduced size.

Simon.