Huawei SUN2000 Series User Manual page 37

SUN2000-(3KTL-10KTL)-M0
User Manual
Table 5-2 Cable description
No.
1
2
3
4
5
6
Note a：The minimum cable diameter depends on the fuse rating on the AC side.
Issue 04 (2019-10-18)
Name
DC input power cable
(Optional) RS485
communications cable
(used to cascade inverters
or connect to the RS485
signal port on the
SmartLogger)
(Optional) RS485
communications cable
(used to connect to the
RS485 signal port on
devices such as the Smart
Power Sensor and the
energy storage device)
(Optional) Power grid
scheduling signal cable
AC output power cable
PE cable

The minimum cable diameter should comply with the local cable standard.

Factors influencing cable selection are as follows: nominal AC current, type of cable, routing
method, ambient temperature, and maximum desired line losses.
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Type
Standard PV cable in the
industry
Two-core outdoor
shielded twisted pair
cable
Two-core outdoor
shielded twisted pair
cable
Five-core outdoor cable
a
Outdoor copper cable
Single-core outdoor
copper cable
5 Electrical Connections
Recommended
Specifications

Conductor
cross-sectional area:
2
4–6 mm
 Cable outer diameter:
4.5–7.8 mm
 Conductor
cross-sectional area:
2
0.2–1 mm
 Cable outer diameter:
4–11 mm
 Conductor
cross-sectional area:
2
0.2–1 mm
Note: When devices
such as the Smart
Power Sensor and the
energy storage device
are both connected to
the inverter, use
2
0.2–0.5 mm cords.
 Cable outer diameter:
4–11 mm
 Conductor
cross-sectional area:
2
0.2–1 mm
 Cable outer diameter:
4–11 mm

Conductor
cross-sectional area:
2
4–6 mm
 Cable outer diameter:
10–21 mm
Conductor
cross-sectional area ≥ 4
2
mm
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