Paul,

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One thing I have found with BDC is that they seem to run out of quite common items all too regularly these days. The Norwich outlet, despite being listed as one of their "Super-warehouses" often has no stocks of 4mm 6242Y.

That sounds like a lot of places here too. [Linked Image]

Far be if from me to judge international systems, but I cringed when I saw the diagram showing the old 3-phase colors connected to the new ones. Looks like a nightmare to me, considering the amount of 3-phase installations that will have blue as a phase and neutral (as you pointed out), especially in the UK.

Peter

Peter