20
Recommended specification of battery breaker for each inverter:
Model
One unit*
5KW
100A/60VDC
*If you want to use only one breaker at the side of battery for the whole system, the rating of the breaker
should be X times to the current of 1 unit. “X” indicates the number of inverters connected in parallel.
Recommended specification of AC input breaker for single-phase application:
Inverter #
Model
2 units
3 units
4 units
5 units
6 units
5KW
100A/230VAC
150A/230VAC
200A/230VAC
250A/230VAC
300A/230VAC
Note 1:
It’s accepted to use 50A breaker for each unit in parallel system and a breaker should be installed for
each inverter in the AC input.
Note 2:
In three-phase parallel system, you can use one 4-pole breaker. The accepted rating of breaker is
based on the current for each phase with the maximum units. Otherwise, please follow the instruction in Note 1
mentioned above.
Recommended battery capacity
Inverter parallel numbers
2
3
4
5
6
Battery Capacity
400AH
600AH
800AH
1000AH
1200AH
Recommended total charging
current
80A
120A
160A
200A
240A
WARNING!
Be sure that all inverters share the same battery bank. Otherwise, the inverters will turn to fault
mode.
4-1. Parallel Operation in Single phase
Two inverters in parallel:
Power Connection
