On Sat, 20 Aug 2016 18:40:50 +0100, John Rumm
wrote:

On 20/08/2016 14:46, Lee wrote:
Other than the physical size and cost*, is there any other reason to
choose between a unit with a main switch +RCBOs and a unit with main
switch +RCD +MCBs?

Need to fit a consumer unit in a small space and very restricted on the
length (though depth and height not a problem).
*Only needs to have 1*6A, 1*32A and 1*40A, so the cost issue of RCBOs vs
MCBs isn't important.


All RCBO solutions are usually "best" in most circumstances. The only
exception being if you specifically wanted a circuit without RCD
protection - but in that case you could simply drop an RCBO for a MCB.

In a normal domestic installation, what would a circuit have to supply
to make that a sensible option?



--

Graham.

%Profound_observation%