Hi

Thanks for the information.

I have now looked at many units nearly capable of doing the job using the references give to widen my search. However most available this side of the pond have restrictions on current and time delays that I do not want. (I even considered buying one and seeing if it could be modified).
However I have found (from your side) a CR Magnetics CR4395 Current Sensing Relay which appears to be able to do the whole job. If the price is OK I will buy one and fit it in the Autumn (fall).
I would be interested in any comments if anyone has experience of the unit and will report back on my findings should I fit one.

Ted