Remember one thing you gewber, Minn Kota is in the selling business. When EZ, Maj. and I installed my 101, all we added was 1 cable to complete the circuit. 50 amp breakers will work great. When I bought my boat, there was 36v MG on it, I replaced it with a 24V MK and now have a 36V MK and nothing has changed except the wiring.