Huawei SUN2000-115KTL-M2 - 5.7.2 Connecting Cables to Amphenol Helios H4 Connectors

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Figure 5-20 DC input terminal connections

5.7.2 Connecting Cables to Amphenol Helios H4 Connectors

Specication Requirements

Cables with high rigidity, such as armored cables, are not recommended, because

poor contact may be caused by the bending of cables.

CA UTION

Use the Amphenol Helios H4 connectors delivered with the solar inverter. If the PV

connectors are lost or damaged, purchase the connectors of the same model. The

device damage caused by incompatible PV connectors is beyond the warranty

scope.

Procedure

Step 1 Prepare the DC input power cables.

Step 2 Crimp positive and negative metal contacts.

Step 3 Insert the contacts into the corresponding positive and negative connectors.

Step 4 Tighten the lock nuts on the positive and negative connectors.

Step 5 Use a multimeter to measure the voltage between the positive and negative

terminals of the PV string (measurement range no less than 1100 V).

● If the voltage is a negative value, the DC input polarity is incorrect and needs

correction.

● If the voltage is greater than 1100 V, too many PV modules congured to the

same string. Remove some PV modules.

SUN2000-(100KTL, 110KTL, 115KTL)-M2

User Manual 5 Electrical Connections

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