opti-solar SP6000 Handy Ultra User Manual page 50

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.
Recommended breaker specification of battery for each inverter:
Model
SP6000 Handy Ultra
SP8000 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
SP6000 Handy Ultra 120A/230VAC
SP8000 Handy Ultra 120A/230VAC
Note 1: Also, you can use 60A breaker for SP8000 Handy Ultra and SP6000 Handy Ultra models 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
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
250A/70VDC
2 units 3 units
180A/230VAC
180A/230VAC
2 3 4
200AH 400AH 400AH
2
1 unit*
4 units
240A/230VAC 300A/230VAC
240A/230VAC 300A/230VAC
5 6
600AH 600AH
48
5 units 6 units
360A/230VAC
360A/230VAC