mack wrote:
Has anyone got a circuit to make up one of these for Steel canal boat
please. I have been recommended to go for about 70 amps.





This should get you started. Unless you really know what you
are doing, you would be wise to obtain some assistance
before building or installing an isolator.

Good Luck!

Chuck

http://www.yandina.com/galvanicIsolator.htm
Galvanic Isolator Explained