32
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 sections 5-1 and 5-2.
Recommended battery breaker specification for each inverter:
Model
One unit*
5KVA
100A/60VDC
*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 AC input breaker specification for single-phase application:
Inverter #
Model
2 units
3 units
4 units
5 units
6 units
5KVA
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 each inverter should be installed
a breaker in the AC input.
Note 2:
In three-phase parallel system, you can use one 4-pole breaker. The accepted breaker rating is based
on the phase current with the maximum units. Otherwise, please follow note 1 instruction.
Recommended battery capacity
Inverter parallel numbers
2
3
4
5
6
Battery Capacity
400AH
600AH
800AH
1000AH
1200AH
WARNING!
Be sure that all inverters will share the same battery bank. Otherwise, the inverters will transfer to
fault mode.