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5
Electrical Connections
5.1
Installing the Ground Cable
NOTE
•
Both the maintenance compartment and chassis shell of the SUN2000 provide a PE point.
Select either for connecting the ground cable. For details about how to connect a ground cable
to the PE point in the maintenance compartment, see section " 5.3 Installing AC Output Power
Cables."
•
You are advised to use outdoor copper-core cables with a cross-sectional area of 6 AWG and
M6 OT terminals. The ground cable must be secured.
•
It is recommended that the ground cable be connected to a nearby PE point. For a system with
multiple SUN2000s connected in parallel, connect the PE points of all SUN2000s to ensure
equipotential connections to ground cables.
•
Recommended: To enhance the corrosion resistance of a ground terminal, silica gel or paint
might needed.
1. Connect the ground cable to the PE point (on the chassis shell).
2. Connect the ground cable to the PV side ground point.
9
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