Fusing a 24V Battery bank [(4) 12V 300AH Batteries in Series/Parallel] to a 24V Inverter. Fuse question?

[Echo]

Hi, I have approx 2K of 3S/3P panels (74V/30A - total) fused at 15A per string at my combiner box with voltage drop of 0.50% on my run.
Then from my 80A/200V CC to the 24V Battery bank's busbar, wired with (4AWG) and fused with a 100A breaker.
Now, I am at the batteries to the 24v inverter.

I will be using (4) 12V 300ah batteries (200A BMS/ea.) in series/parallel for a 24V 600Ah battery bank (with balancers) to a 24V 4K inverter.

Fusing at the batteries (2S2P), do I place an MRBF fuse at each positive terminal on each 24V 300AH battery string - 2P (2 fuses in total) or at every battery's positive terminal (4 in total) and do I use the 200A Max Continuous Discharge Current - BMS for my fuse rating? 200x1.25=250A MRBF Fuse or the batteries 300Ah rating which would max out with a MRBF at 300A?
I'm looking at using 4/0.

 

[740GLE]

One fuse per battery string at 200a same as the BMS. So one fuse per 24v battery, two total.

Seeing the currents flowing through the string you don’t need two fuses per string

Edit; Also seeing u have two 200ah 24v batteries, you only have 400ah at 24v

Oops I misread 200a BMS, and overlooked the 300ah cells.

 

[Echo]

One fuse per battery string at 200a same as the BMS. So one fuse per 24v battery, two total.

Seeing the currents flowing through the string you don’t need two fuses per string

Edit; Also seeing u have two 200ah 24v batteries, you only have 400ah at 24v

Oops I misread 200a BMS, and overlooked the 300ah cells.

(2) 200A MRBF fuses total, based on BMS. Thanks!