My system is as follows: I have 32 370 watt panels. I have two Growatt 5kw inverter/chargers. Each inverter can accept up to 450 vdc on a single string. I would like to purchase one box that can receive 4 strings, 8 panels @ ~ 40 vdc each, and combine them so I have just two pairs of wires coming out of the box. Each string will be around 320 vdc and 10 amps. One string will go to one of the two Growatts and the other string to the other. I'm hoping the box will have fuses or circuit breakers that can handle ~320 vdc and 15 breakers or fuses. Your help would be much appreciated. I am 100% off grid. I'm using a midpoint transformer to get a neutral for my 110 ac loads.