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Step 4:
Simply slide in the parallel board and fix it to the inverter with 2 screws tightly. Now the inverter is in
parallel operation.
4. Mounting the Unit
When installing multiple units, please follow the illustration below.
NOTE:
For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the side and approx.
50 cm above and below the unit. Be sure to install each unit in the same height.
5. Wiring Connection
The size of the cable for each inverter is shown as below:
WARNING:
Be sure the length of all battery cables is the same. Otherwise, there will be voltage difference
between inverter and battery which might cause mal-function of the parallel inverters.
Recommended battery cable and terminal size for each inverter:
Model
Wire Size
Torque value
3KVA
1*4AWG
2~ 3 Nm
Recommended cable size of AC input and output for each inverter:
Model
AWG no.
Torque
3KVA
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 it to the battery
terminal. The size of the cable 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
