Once the inverter is properly mounted, run conduit into the inverter's wire box. Ideally, the DC should land on the left side/bottom left corner of the inverter whereas the AC should land on the right side/bottom right corner. The wire terminals are spring clamp, so you will need a small common (flat) screwdriver to open them and land the wires.
Please see pages 12-19 of the inverter manual if you need more details for this section.
Here is the chart of recommended wire sizes:
The terminals on the left-hand side of the wire box are the PV string input terminals. Just to the right of them are the DC battery input/output terminals. Be sure that the battery polarity is correct before pushing in the battery fuses.
There are eight PV string input terminals - four positive and four negative. The left set of four are the positive terminals, the right set of four are the negative terminals.
The AC wire terminals are on the right side of the wire box. The recommended wire sizes are:
Please strip off at least 1 & 5/8 inches of sheath and insert the wire into the terminal.
These are screw terminals so please have a Phillips screwdriver ready and tighten to 2 N.m.
Here is a table for recommended over-current protection devices on the AC side:
Startup voltage is 120 Vdc
Operating voltage range for each MPPT is 90-450 Vdc
Rated voltage is 330 Vdc and the maximum voltage is 500 Vdc
The maximum usable input current per MPPT is 22A (times 2 MPPTs)
The maximum short circuit input current is 34.3A (times 2 MPPTs)
Battery operating voltage range is 120-500 Vdc
The maximum charge/discharge current is 20A
Note: DC battery fuses are 30A
Nominal grid voltage is 208/240 Vac and nominal frequency is 60 Hz
The rated grid output current will vary based on size (see Table 4.2 above)