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Recommended breaker specification of battery for each inverter:
Location
1 unit*
n units*
Battery side
135A/70V
DC
n x 135A/70V
DC
Inverter side
135A/70V
DC
135A/70V
DC
*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:
2 units
3 units
4 units
5 units
6 units
7 units
8 units
9 units
80A/
230VAC
120A/
230VAC
160A/
230VAC
200A/
230VAC
240A/
230VAC
280A/
230VAC
320A/
230VAC
360A/
230VAC
Note1:
Also, you can use 50A breaker for only 1 unit and install one breaker at its AC input in each inverter.
Note2:
In a three-phase system you can use 4-pole breaker directly and the rating of the breaker should be
compatible with the phase current limitation from the phase with maximum units
Recommended minimum battery capacity
Inverter parallel numbers
2
3
4
5
6
7
8
9
Battery Capacity
200Ah 400Ah 400Ah 600Ah
600Ah
800Ah
800Ah
1000Ah
WARNING!
Be sure that all inverters will share the same battery bank. Otherwise, the inverters will transfer to
fault mode.