Join Date: Apr 2014
Location: Bozeman, Montana
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Couple of comments:
I guess the Inverter/Charger is 2000 watts, so at full power, it will probably draw about (2000 watts)/ (12 volts)(0.9) = 185 amps. So, the 150 amp fuses and the AWG 4 are (I think) low. The BlueSea Circuit Wizard is good for getting gages right (but, be sure to fill in all the inputs). Be sure to follow the inverter manual for wire gages and the details of how to hook it up to be sure that the Inverter/Charger can take care of bonding of the neutral to ground correctly.
2000 watts is a lot of inverter, so you might choose to use it at less than its full capacity and be able to use the smaller fuses and wires.
Try to keep the 12 volt wire run from housebattery to inverter as short as possible.
The fuse in the inverter line should be positioned as close to the positive bus as possible.