I have 4 LiFePo4 100Ah batteries which for the moment will be run parallel. I have a MRBF terminal fuse block for each battery. Fuses are rated at 58V 100A for each terminal. This inverter is a Samlex PST-2000-12 rated at 2000W and with a surge of 3,500W. The battery cables are 5' long & 2/0 AWG. This system will be occasionally moved between the house and the camper for vacation trips so it will require some disassembly.
My question is about fusing: I think the fuses for the individual batteries are proper but I wonder about the fuse to the 2/0 cable going to the inverter. I think that needs to be a higher value. It seems to me it should be able to handle the surge which would require around 300A at 12V. So for me guessing, I need the 100A for the three, and a 300A fuse for the one going to the inverter. Am I guessing right?
A second question; I'll want to series these in a different application with a 5000W 48V inverter. I think the 100A inter-battery fuses need to be the same, but the fuse to that inverter Assuming a surge of 8000W would need to be 8000/48 = 166A, or rounded up the the next higher fuse?
Thanks!
My question is about fusing: I think the fuses for the individual batteries are proper but I wonder about the fuse to the 2/0 cable going to the inverter. I think that needs to be a higher value. It seems to me it should be able to handle the surge which would require around 300A at 12V. So for me guessing, I need the 100A for the three, and a 300A fuse for the one going to the inverter. Am I guessing right?
A second question; I'll want to series these in a different application with a 5000W 48V inverter. I think the 100A inter-battery fuses need to be the same, but the fuse to that inverter Assuming a surge of 8000W would need to be 8000/48 = 166A, or rounded up the the next higher fuse?
Thanks!