7 Electrical Connection
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3) Push the threaded sleeve into the plug, screw the press nut tightly.
FIG. 7-6 Tightening the AC Connector
3)
Finally, insert the AC connector into the corresponding AC receptacle on the inverter. Pay attention to the
polarities to make sure the correct assembling.
7KW 8/9KW
FIG. 7-7 Installing the AC Connector
7.6 Wiring DC Input
Note: The DC connectors are in paired (negative and positive ones). Pay attention to the polarities when assembling.
FIG. 7-8 DC Input Connectors
7.6.1 Requirement for DC input
These single-phase inverters are equipped with two MPP trackers.
Requirements for PV module strings:
1) Same type PV modules for each string.
2) The power, voltage (startup and open-circuit voltage) and operating current of each PV strings must meet the
allowable value of the inverter.
Note: Consider temperature coefficient of the PV modules.