Hi everyone and thanks for looking at this post. I am on the 2011 NEC code and have a system with 3x Fronius Symo 12.0-3-Delta inverters. Each inverter has an output of 33.3 A at 208V. Each inverter is going to a solar subpanel and connected to 3x 50A 3 pole breakers. The bus on the subpanel is 400A and the MCB is 150A. My question is, do I have to size my wire running from the MCB to the MDP breaker according to the size of the MCB or the total output of the inverters? Essentially, does the wire need to carry 150A or can I get away with a wire that only carries 100A since 33.3 x 3 = 99.9.:?