7 Electrical Connection
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3) Insert L, N, and PE conductors into the corresponding pins of the plug (as per FIG. 7-5), then tighten the fastening
screws by screwdriver to fix conductors firmly. Torque, 2 N.m.
B
B
B-B
L
N
PE
PE
N
L
FIG. 7-5 AC Terminal Positions
4) Push the threaded sleeve into the plug, screw the press nut tightly.
FIG. 7-6 Tightening the AC Connector
5) Finally, insert the AC connector into the corresponding AC receptacle on the inverter. Pay attention to the polarities
to make sure the correct assembling.
FIG. 7-7 AC receptacle FIG. 7-8 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. 7-9 DC Input Connectors
7.6.1 Requirement for DC input
This single-phase inverter is equipped with two MPP trackers.
Requirements for PV module strings:
1) Same type.
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.
Check the inverter specification in section ANNEX B.
