Re: 208volt 1-Phase vs 240volt 1-Phase
There is a large heat loss.
Example - A 3000 watt, 240 volt, water heater element has a resistance of 19.2 ohms, and draws about 12.5 amps.
The same element (still has 19.2 ohms) on 208 volts draws only 10.83 amps.
208 X 10.83 = 2233 watts, which is only about 74.5% of it's original rating.
Ed
P.S. Jim can type faster than me.
[ April 02, 2004, 10:40 AM: Message edited by: Ed MacLaren ]