Dc Connection - KEHUA TECH SPI-B Series User Manual

3 Installation
Figure3-11 The grounding of inverter
Step 2 Switch off the DC switch connected with PV array and DC switch in the inverter.
Step 3 Connect the DC input in the inverter with the PV array.
Step 4 Connect the AC output in the inverter with the grid.
Step 5 After finish electrical connection, block GRID port, COM port by fireproofing mud.
----End

3.5.2 DC Connection

When installation, it must use the equipped DC terminals and PV connectors to avoid inverter
damage.
Switch off the DC switch before connected with PV array.
Connect the positive pole and negative pole correctly when doing the electrical connection between
PV array and inverter.
The DC input voltage should be less than the max. input voltage of inverter.
It's forbidden to connect the grounding wire in the positive pole and negative pole of PV array, or it
will lead to inverter damage.
Use the equipped PV connector and terminals to perform DC connection. PV connector includes
positive connector and negative connector. The corresponding matching is positive metal terminal
and negative metal terminal respectively, as shown in Figure3-12 and Figure3-13.
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SPI-B Series (30K-60K) String PV Grid-tied Inverter
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