Hi Mike,
Tanks for looking at this, the questions you asked ill try my best to explain
the curcuit currently operates as follows...
Feed from main panel into contactor, the contactor is operated by a fish key which then juices up a small DB board i think which has about 4 ring main attached to it...
This is as i beleive the curcuit to be functioning, but it doesnt matter any way im looking for a comlete solution so if it means low voltage contactors for pulling the ring mains in then fine...
hope this helps, im going to speak to the sparky tomorrow to find out the exact wiring situation...
Alan