then pull the joined breakers and replace them with 2 singles. Run a separate 3 wire (hot neutral, ground) from each leg to your destination. Your house should be 240 to the fusebox then stepped down from there. Look to see how the power is distributed from the meter to the fuse box and how it breaks out the 120 legs from there. Make each side of the joined switches look like the other 120 circuits. Also you may just add a new panel to the outlet end, see diagram http://homerepair.ab...40v_breaker_4.htm
you dont need a converter, just step it