I replaced my 4 6v AGM batteries with two SOK LiFePO4 12v 206ah batteries with no other chamge to the system. There is 4/0 cable from the inverter/charger to the batteries through a cutoff switch with no fuse in the line. There is a 2/0 cable from the cutoff switch to the house items, as best I can tell. That line has a 175 amp Bussmann circuit breaker. Again I changed nothing but the batteries.
Attached is a picture of part of my system. The red curved canle from the right connecting to the switch is from the inverter and the red cable from the switch down is to the batteries. The smaller red cable from the switch goes through the Bussmann cb to the house 12v items.
Mike Sokol of RVElectricity.com says there should be a Bussmann type cb in the cable between the inverter and batteries, positive cable I assume, rated at 120% max battery current. Nate Yarborough of Explorist.life did a video on 8 types of fuses common to RVs and he suggest an MRBF fuse for this purpose.
Can anyone give me some guidance on the subject?
Attached is a picture of part of my system. The red curved canle from the right connecting to the switch is from the inverter and the red cable from the switch down is to the batteries. The smaller red cable from the switch goes through the Bussmann cb to the house 12v items.
Mike Sokol of RVElectricity.com says there should be a Bussmann type cb in the cable between the inverter and batteries, positive cable I assume, rated at 120% max battery current. Nate Yarborough of Explorist.life did a video on 8 types of fuses common to RVs and he suggest an MRBF fuse for this purpose.
Can anyone give me some guidance on the subject?