- Jun 5, 2006
Given that the OP has a single phase supply, it's likely that the supply is either 60 or 80A as that's what most municipalities do.Ehh, no 100A/125A SP is quite common with MCCBs. Even up to 250A with MCBs is easy to find.
A 250A single phase 220V feed is good for about 55KW - so that is what would be needed here. You need 4/0 copper wire for 250A - with a core of 11.6mm diameter. I somehow doubt OP has that.