wiring a 220v oven
My electrician asked me for the amperage on a new electric oven. He wanted to know what wire gauge to use. The manufacturer's info showed that the device used 3.6 KW on a 120/240v line. (And also showed 2.7 KW on a 208Y/120v line).
Well, that confused us all. As I understand Watt's law, that would imply a 15 amp circuit for 240V (3600w/240v=15a). We called the home improvement store (Lowe's) and they said 30 amp circuit. And use 10 gauge wire.
So my question is which is correct? Should it be 30 amp since the 240v is made of 2 120v wires and that amperage would be 30 amp (for 3.6 KW).
And finally why is it called 220v if it's really 240v?
And what is 208Y/120 ???
p.s. we are using 10-3 gauge wire, and a 30 amp circuit. Are we right?