And seemingly that 240 US is 2 phase while the rest of the world is 220 1 phase.<BR> <HR></BLOCKQUOTE><BR><BR>A guy asked a question and I answered it, there is a difference between 50Hz and 60Hz ...

Some 220/240 outlets are 4-wire: 2 x 110/120v prongs (black, red), 1 neutral, 1 ground. The appliance that plugs in to it combines the two 110/120v currents internally to get the 220/240v.

One solution, as some electric car drivers have discovered, is to use a product that combines two, 110-volt outlets to provide 240-volts of electricity that can power a modified, portable level-2 ...