Re: Consumer unit wiring problem

[Richard Malcolm-Smith <rich@xxxxxxx>]

Ant Skelton wrote:

> The problem is that the consumer unit has a solid metal live busbar at
> the bottom with U shaped grooves in it, into which the MCBs bolt. The
> MCBs I'm familiar with have a cable retaining mechanism at the bottom
so
> that you can insert a cable and tighten it.

The ones that I have done that were like that needed to go under the
screw, not the same place that the wire went into.

> Is this a common arrangement? If so, does anyone know where suitable
> MCBs can be had, or even what to specify when ordering them so that I
> get the right type of connection?
>
> The consumer unit in question (and the existing MCBs) are made by
> Crabtree, and must be about 10 years old.

Are you able to get one the same brand still? That would be the best bet
as there seems to be little standard with respect to termanal
positioning.