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Recommended AC input and output cable size for each inverter:
Wire Size
Torque Value
AWG
mm
2
1 * 8 AWG
8.4
1.4~ 1.6Nm
You need to connect the cables of each inverter together. Take the battery cables for example: You need to use
a connector or bus-bar as a joint to connect the battery cables together, and then connect to the battery
terminal. The cable size used from joint to battery should be X times cable size in the tables above. “X” indicates
the number of inverters connected in parallel.
Regarding AC input and output, please also follow the same principle.
CAUTION!!
Please install the breaker at the battery and AC input side. This will ensure the inverter can be
securely disconnected during maintenance and fully protected from over current of battery or AC input. The
recommended mounted location of the breakers is shown in the figures in 5-1 and 5-2.
*If you want to use only one breaker at the battery side for the whole system, the rating of the breaker should
be X times current of 1 unit. “X” indicates the number of inverters connected in parallel.
Recommended breaker specification of AC input with single phase:
Model
2 units
3 units
4 units
5 units
6 units
5KVA
100A/230VAC
150A/230VAC
200A/23VAC
250A/23VAC
300A/23VAC
Note 1:
Also, you can use 50A breaker for only 1 unit, and each inverter has a breaker at its AC input.
Note 2:
Regarding three phase system, you can use 4 poles breaker, the rating is up to the current of the
phase which has the maximum units. Or you can follow the suggestion of note 1.
Recommended battery capacity
Inverter parallel numbers
2
3
4
5
6
Battery Capacity
1200AH
1800AH
2400AH
3000AH
3600AH
WARNING!
Be sure that all inverters will share the same battery bank. Otherwise, the inverters will transfer to
fault mode.
