No....two breakers, each on a separate leg. Might help to mention that I was raised by a RCA Field Engineer who left to open his own hardware store and be home more. I grew up working in that store - rewired a vacuum cleaner for a customer at the age of 12 - obviously, dad inspected my work before releasing it to the customer....but by the time I was 14 I was helping rewire houses - and I NEVER had an issue with my work, primarily because my dad wouldn't let me do anything he hadn't trained me to do personally - and I could tell him in detail every step required to do the job. To this day, I won't wire a 120 vac outlet with anything less than #12 - as dad always said - you have to protect the homeowner from their own special level of stupid! LOL Might also add that I worked on 3-phase, as well - and had to educate more than one "electrician" on what an "Open Delta" circuit was. I also know that you test 3-phase on leg to leg, lol!!
So, you're saying you did unlicensed elec work as a kid? :-o
Remember when "everybody" could do low voltage electrical w/o a license? I miss those days.
#14 was never used for outlets in any of my wiring projects. Might as well build in some extra! I think the only time I used it was for my shop with dedicated flourescent lighting circuits.
I've seen 3 phase but never got into it.