MPP Solar PIP-MS 1-5KVA Instalační příručka Strana 4

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Recommended AC input and output cable size for each inverter:
Model
AWG no.
Torque
4KVA
10 AWG
1.4~1.6Nm
5KVA
8 AWG
1.4~1.6Nm
You need to connect the cables of each inverter together. Take the battery cables for example: You need to
use a connector or bus-bar as a joint to connect the battery cables together, and then connect to the battery
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. The
recommended mounted location of the breakers is shown in the figures in 5-1 and 5-2.
Recommended breaker specification of battery for each inverter:
Model
1 unit*
4KVA
80A/60VDC
5KVA
100A/60VDC
*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
4KVA
80A/230VAC
120A/230VAC
160A/230VAC
200A/230VAC
240A/230VAC
5KVA
100A/230VAC
150A/230VAC
200A/23VAC
250A/23VAC
300A/23VAC
Note1: Also, you can use 40A breaker (50A for 5KVA) for only 1 unit, and each inverter has a breaker at its AC
input.
Note2: Regarding three phase system, you can use 4 poles breaker, the rating is up to the current of the
phase which has the maximum units. Or you can follow the suggestion of note 1.
Recommended battery capacity
Inverter parallel numbers
2
3
4
5
6
Battery Capacity
400AH
600AH
800AH
1000AH
1200AH
WARNING! Be sure that all inverters will share the same battery bank. Otherwise, the inverters will transfer
to fault mode.
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