Charge controller/battery/inverter protections

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I would like to set up an off-grid CPV installation using the following equipment:

  1. 9 × 500 W modules
  2. 1 Victron 250/85 charge controller
  3. 1 MultiPlus II 48/5000
  4. 4 Pylontech 48 V/50 Ah batteries

For the protection devices, I am considering installing:

  1. For the charge controller on the battery side: 1 bipolar 22 × 58 cylindrical fuse holder fitted with two 100 A fuses

  2. For the batteries (with doubled Pylontech cables), 2 NH000 knife disconnectors with 80 A or 100 A fuses. Please let me know which would be better.

  3. For the MultiPlus 48/5000, 1 NH1 knife disconnector with 160 A fuses (although Victron recommends 200 A)

Thank you for giving me your opinion on this choice of protection devices, which is also influenced by budget considerations.

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