No. Name Type Recommended Specications
3 (Optional) RS485
communications cable
(used to connect to the
RS485 signal port on a
Smart Power Sensor for
export limitation)
Two-core outdoor
shielded twisted pair
cable
● Conductor cross-sectional area: 0.2–1
mm
2
● Cable outer diameter: 4–11 mm
4 (Optional) Rapid
shutdown switch signal
cable
Two-core outdoor
shielded twisted pair
cable
● Conductor cross-sectional area: 0.2–1
mm
2
● Cable outer diameter: 4–11 mm
5 (Optional) Grid
scheduling signal cable
Five-core outdoor
cable
● Conductor cross-sectional area: 0.2–1
mm
2
● Cable outer diameter: 4–11 mm
6
AC output power cable
a
Outdoor copper
cable
b
SUN2000-8KTL-M2, SUN2000-10KTL-M2,
SUN2000-12KTL-M2:
● Conductor cross-sectional area: 6–16
mm
2
● Cable outer diameter: 11–26 mm
SUN2000-15KTL-M2, SUN2000-17KTL-
M2, SUN2000-20KTL-M2:
● Conductor cross-sectional area: 10–16
mm
2
● Cable outer diameter: 11–26 mm
7 PE cable Single-core outdoor
copper cable
c
SUN2000-8KTL-M2, SUN2000-10KTL-M2,
SUN2000-12KTL-M2: Conductor cross-
sectional area ≥ 6 mm
2
SUN2000-15KTL-M2, SUN2000-17KTL-
M2, SUN2000-20KTL-M2: Conductor
cross-sectional area ≥ 10 mm
2
● Note a: The minimum cable diameter depends on the fuse rating on the AC side.
● Note
b: The SUN2000-8KTL-M2 and SUN2000-10KTL-M2 inverters are applicable only to
Australia.
● Note
c: The SUN2000-8KTL-M2 and SUN2000-10KTL-M2 inverters are applicable only to
Australia.
● The minimum cable diameter should comply with the local cable standard.
● Factors inuencing cable selection are as follows: nominal AC current, type of cable,
routing method, ambient temperature, and maximum desired line losses.
SUN2000-(8KTL-20KTL)-M2
User Manual 5 Electrical Connections
Issue 11 (2023-02-07) Copyright © Huawei Technologies Co., Ltd. 41