Is this the one that Geoff built at whitwick with the stuff people had lying around in their tool boxes? I really do like to see stuff get recycled over and over again.

Seriously though the relays are automotive relays (PCB type so they're smaller) and rated for 24V at 30A so should suit an axe motor just nicely.

You wouldn't buy the parts for a tenner so i'd go for it. Relays are from rapid and not much to replace if they fail.

http://www.rapidonline.com/Electronic-C ... ive+relays

Andy