32
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 parallel diagrams in section 5-1 and 5-2.
Recommended specification of battery breaker for each inverter:
Model
1 unit*
3KVA
125A/30VDC
*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 specification of AC input breaker in single phase:
Model
2 units
3 units
4 units
5 units
6 units
3KVA
80A/230VAC
120A/230VAC
160A/230VAC
200A/230VAC
240A/230VAC
Note 1:
You also can use only one 40A breaker for each inverter at its AC input.
Note 2:
Regarding three-phase system, you can use 3-pole breaker directly and the rating of the breaker should
be compatible with the phase current limitation from the phase with maximum units.
Recommended battery capacity
Inverter parallel numbers
2
3
4
5
6
Battery Capacity
200AH
300AH
400AH
500AH
600AH
WARNING!
Be sure that all inverters will share the same battery bank. Otherwise, the inverters will be
transferred to fault mode.
5-1. Parallel Operation in Single phase
Two inverters in parallel:
Power Connection
