Huawei SUN2000-25KTL-US Quick Installation Manual page 6

4. Install ground cables.
Ground Point Meaning
1
PV side ground points
2
3
Protection ground points
4
NOTE
1. Select ground points for PV side grounding and protective grounding based on the principle of
easy operation.
2. It is recommended that 8 AWG outdoor copper-core cables be used as ground cables. Ground
cables must be securely connected.
3. It is recommended that ground cables of the inverter be connected to the near end.
4. To prevent corrosion, apply silica gel or paint to the PE terminal after connecting the ground cables.
Installing Ground Cables (Ground Points
1 and 4 Are Used as an Example)
Ground Point
Connection
Screw Model
M4
Connect either of the two ground
points for PV side grounding.
M6
Connect either of the two ground
M6
points for protective grounding.
Ground
OT Terminal
Point
The screw specification is M4.
The specification of the cable
1
that can be connected is 8
AWG.
The screw specification is M6.
The specification of the cable
4
that can be connected is 8
AWG.
NOTE
1. Connect the ground cable to the GND
waterproof cable connector at the inverter
bottom for PV side grounding.
2. Connect the ground cable to the AC OUTPUT
waterproof cable connector at the inverter
bottom for protective grounding.
5
Tightening
Torque
1.2 N· m
5 N· m