5.4 5.4 Connect PV side of inverter (DC-Input)Connect PV side of inverter (DC-Input)
Connecting PV strings into inverter must following the below procedure. Any faulty
cause by inappropriate operation will be not included in the warranty.
▶
Ensure the maximum short circuit current of PV strings must be less than the maxi-
mum inverter DC current input. And three “DC switch” is in OFF position. Otherwise,
it may cause high voltage and electric shock.
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Ensure PV array have good insulation condition in any time.
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Ensure same PV string must have the same structure, including: same model, same
number of panels, same direction, same azimuth.
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Ensure PV positive connector connects to inverter positive pole, negative conenctor
connect to inverter negative pole. Use the connectors in the accessories bag. The
damage caused by incorrect is not included in the warranty.
Coppercablecrosssectionarea（mm²） Cable OD(mm)
Range Recommend
4.0 – 6.0 4.0 4.5 – 7.8
1. 1. Use the metal contact pins from the accessories bag.
2. 2. Connect the cable according below diagram (1.Positive cable, 2. negative cable).
CAUTIONCAUTION danger of reverse polarity, use the corresponding contact pins, ensure that
the polarity is correct before plugging into the DC connections!
3. 3. Insert the positive and negative DC cables into the corresponding contact pins.
1 Positive DC cable / 2 Negative DC cable1 Positive DC cable / 2 Negative DC cable
4. 4. Crimp the PV metal contact pin to the striped cable using a proper crimping pliers.
36/78 SOFAR 100...125KTLX-G4
Electrical Connections
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