5
OT-M6
M6
5 N·m
Installing Ground Cables
4.2
Installing AC Output Power Cables
4.3
1. The outdoor copper-core cable with a cross-sectional area of 16 mm
2
is recommended. The
ground cable must be secured.
2. It is recommended that ground cable of the SUN2000 be connected to the nearest ground point.
For a system with multiple SUN2000s connected in parallel, connect the ground points of all
SUN2000s to ensure equipotential connections to ground cables.
3. To enhance the corrosion resistance of the ground terminal, apply silica gel or paint on it after
connecting the ground cable.
NOTE
• If you connect a ground cable to the ground point on the enclosure shell, you are recommended to
use a three-core outdoor copper-core cable with a cross-sectional area of 25 mm
2
as the AC
output power cable for the SUN2000-42KTL.
• If you connect a ground cable to the ground point in the maintenance compartment, you are
recommended to use a four-core outdoor copper-core cable with a cross-sectional area of 25 mm
2
as the AC output power cable for the SUN2000-42KTL.
• If you connect a ground cable to the ground point on the enclosure shell in a scenario without a
neutral wire, you are recommended to use a three-core outdoor copper-core cable with a cross-
sectional area of 16 mm
2
as the AC output power cable for the SUN2000-29.9KTL/33KTL-A and a
three-core outdoor copper cable with a cross-sectional area of 25 mm
2
as the AC output power
cable for the SUN2000-36KTL.
• If you connect a ground cable to the ground point in the maintenance compartment in a scenario
without a neutral wire, you are recommended to use a four-core outdoor copper-core cable with a
cross-sectional area of 16 mm
2
as the AC output power cable for the SUN2000-29.9KTL/33KTL-A
and a four-core outdoor copper cable with a cross-sectional area of 25 mm
2
as the AC output
power cable for the SUN2000-36KTL.
NOTE
1. Never open the host panel of the SUN2000.
2. Before opening the SUN2000 maintenance compartment door, turn off the downstream AC
output switch and the two bottom DC switches.
• The ground point on the enclosure is preferred to connect to the PE cable for the SUN2000.
• The ground point in the maintenance compartment is mainly used for connecting to the ground
cable included in the multi-core AC power cable. For details, see section 4.3 "Installing AC
Output Power Cables."
