>erm - this was awhile ago, but if you have 3 standard 3phase leads then >taking any two of them will give you 220v. I i seem to remeber something >about star and delta wiring. cant remeber where it comes in. the drop from >380 to 220 is because of the 120 deg phase diff between the 3 phases. > >john > Tangentially related (yes, it will have a PIC in it) a customer wants us to design a controller for a 220V submersible pump. He wants it to have a built-in Ground Fault Interrupter capability. Anyone have suggestions on a source of parts? All my catalogs show only 120V GFIs. TIA, Reg Neale