opti-solar SP7000 Handy Ultra User Manual page 52

SP7000 Handy Ultra
*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
SP7000 Handy Ultra 160A/230VAC
Note1: Also, you can use 50A breaker for 5KW for only 1 unit and install one breaker at its AC input in each
inverter.
Note2: 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
Battery Capacity
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
1
250A/70VDC
2 units 3 units
240A/230VAC
2 3 4
200AH 400AH 400AH
2
4 units 5 units
320A/230VAC 400A/230VAC
5 6
600AH 600AH
50
6 units
480A/230VAC
7 8 9
800AH 800AH 1000AH