Sub Panel Question
I had to have a sub panel installed by a licensed electrician a couple of years ago for an outdoor patio project because I was out of space for more circuits in the main panel. From the sub panel he ran three circuits using a 12/3 run and a 12/2 run with three 20 amp breakers. I noticed the sub panel is connected to the main panel with a 50 amp circuit breaker. Is this OK, or should there have been a bigger feed? I also have a second and third question related to this.
Right now we only use the 12/3 line. On one circuit I have a warming drawer. The other circuit has three outlets on it which get occassional minor use. The 12/2 line is unused, but we're finally getting around to finishing up the project. So the second circuit on the 12/3 will have six can lights (600-900W), two fans, a pair of floodlights (300W total) and four outlets. I'll probably add an outlet or two to the circuit with the warming drawer since it pulls about 8.5 amps, although the specs say it should have its own circuit. The 12/2 line is going to be used for landscape lighting and should be fine. Finally my question. Since the feed to the sub panel goes through a 50 Amp circuit breaker will I need a larger feed? Also if I want to add another circuit, am I already at my limit and need another sub panel?
Thanks for aking the time to look at this.