We suggest solution described in attached schema.

We also suggest to devide the system by 3pcs of 3kW Inverters on 48V at input to reduce the input current.

There are following items in the system by attachment:

18x 290Wp solar panels
http://www.ev-power.eu/Solar-Panels/Solar-panel-SCHUTTEN-Poly-290Wp-72-cells-MPPT-35V-EUFREE.html

16x LiFePO4 cells for 48V battery pack
http://www.ev-power.eu/Sinopoly-40Ah-300Ah/SP-LFP300AHA-Lithium-Cell-LiFePO4-3-2V-300Ah.html

1x BMS123 OFFGRID to protect the cells
http://www.ev-power.eu/BMS123-System/BMS123-OFFGRID-BMS-Main-Controller.html
14x cell module http://www.ev-power.eu/BMS123-System/BMS123-Cell-Module.html
1x cell module IN
http://www.ev-power.eu/BMS123-System/BMS123-Cell-Module-IN.html
1x cell module OUT
http://www.ev-power.eu/BMS123-System/BMS123-Cell-Module-OUT-1.html

2x 200A 48V DC contactors
http://www.ev-power.eu/DC-Contactors/DC-Power-Contactor-200A-Coil-48V.html

2x solar regulator:
http://www.ev-power.eu/Solar-GridFree/MPPT-Solar-Regulator-12-24-36-48-V-eTracer-45A-Input-150V-ET4415N.html

3x 3 kW Inverter
http://www.ev-power.eu/Inverters-DC-AC/Invertor-DC-AC-48V-230V-3000W-sin-wave.html

There are also fuses. It shoul be use for 200A and there should be use
cable RADOX
http://www.ev-power.eu/Connectors-Cabling-1-1/Copper-Cable-RADOX-35-mm-Shielded-HS84100296.html
which provides current up to 375A. So it is enought for your system.