On 2009-10-23, Pete C. wrote:

JayTKR wrote:

That's what I thought -- that 200 amps at 240 volts is basically 400 amps
available at 120 volts.

The difference is that you can't run a single 120V load at a full 400
amps. But you could run two different 120V loads at 200 amps.

One other complicating factor is the 125A max branch circuit
limitation.

The only limitation here is in the breakers for your panel. Larger
breakers may be available; they often take up more space than normal
in the panel, so as to have multiple connections to the same busbar.

Cheers, Wayne