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Solarpower24.it by Barba S.r.l. – via Locchi, 3F – 47122-Forlì – Italia
Tel/What’s up +39 05431995799 – web www.solarpower24.it – email solarpower24@solarpower24.it
Recommended breaker specification of battery for each inverter:
Model 1 unit*
8KW 250A/70VDC
*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
8KW 120A/230VAC 180A/230VAC
240A/230VAC 300A/230VAC 360A/230VAC
Note 1: Also, you can use 60A breaker with only 1 unit and install one breaker at its AC input in each inverter.
Note 2: Regarding 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 battery capacity
Inverter parallel numbers 2 3 4 5 6
Battery Capacity 200AH 400AH 400AH 600AH 600AH
WARNING! Be sure that all inverters will share the same battery bank. Otherwise, the inverters will transfer to
fault mode.
4-1. Parallel Operation in Single phase
Two inverters in parallel:
Power Connection
Communication Connection
2
1
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