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3. Check the route of the AC output power cable.
3.4
Installing DC Input Power Cables
1. Use the Amphenol Helios H4 PV connectors supplied with the SUN2000. If the PV connectors
are lost or damaged, purchase the connectors of the same model. The device damage caused
by incompatible PV connectors is not covered under any warranty.
2. Ensure that the PV module output is well insulated to ground.
3. The DC input voltage of the SUN2000 shall not exceed 1100 V DC under any circumstance.
4. Before installing the DC input power cable, label the cable polarities to ensure correct cable
connections.
5. Use the positive and negative metal contacts and black DC connectors supplied with the
SUN2000. Using incompatible positive and negative metal terminals and DC connectors may
result in serious consequences. The caused device damage is not covered under any warranty.
6. If the DC input power cable is reversely connected, do not operate the DC switch as well as
positive and negative connectors immediately. Failing to do so may cause device damage, which
is not covered under any warranty. Wait until the night when solar irradiance declines and the PV
string current drops to below 0.5 A. Then set the DC switch to the OFF position, remove the
positive and negative connectors, and correct the polarities of the DC input power cable.
7
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