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3.5.2 Connection to PV string (DC input)
1) Before connecting PV string, make sure DC switch is turned off
2) Make sure PV string polarity confirms with DC connector, otherwise, it will cause
damage to inverter
3) Make sure the maximum open circuit voltage (Voc) of each PV string does not exceed
the inverter input voltage Vmax under any condition
4) Do not connect positive or negative pole of PV string to earth wire. Otherwise, it will
cause damage to inverter
Figure 3-8 Connect the PV string
Summary of Contents for NAC4K-DS
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