Table 5-2 Cable description of a 3-pin model (S: cross-sectional area of the AC cable conductor; S
p
:
cross-sectional area of the protective earthing cable conductor)
No.
Cable
Category
Conductor
Cross-Sectional
Area Range
Outer
Diameter
Source
1
DC input
power cable
PV cable that meets the
1100 V standard
4–6 mm
2
5.5–9 mm
Prepared
by the
customer
2
RS485
communicatio
ns cable
Outdoor shielded twisted
pair that meets the local
standard
0.25–1 mm
2
● One or
two
communic
ations
cables: 4–
11 mm
● Three
communic
ations
cables: 4–
8 mm
Prepared
by the
customer
3
Protective
earthing (PE)
cable
[1]
Single-core outdoor
copper cable and M10
OT/DT terminals
S
p
≥ S/2
N/A
Prepared
by the
customer
4
Tracking
system power
cable
Three-core outdoor
copper cable with dual-
layer protection
10 mm
2
15–18 mm
Prepared
by the
customer
5
AC output
power cable
(multi-core)
● If you connect a PE
cable to the ground
point on the
enclosure, you are
advised to use a
three-core (L1, L2, and
L3) outdoor cable and
M12 OT/DT terminals
(L1, L2, and L3).
● If you connect a PE
cable to the ground
point in the
maintenance
compartment, you are
advised to use a four-
core (L1, L2, L3, and
PE) outdoor cable,
M12 OT/DT terminals
(L1, L2, and L3), and
M10 OT/DT terminals
(PE). You do not need
to prepare a PE cable.
● Copper cable:
– S: 70–240
mm
2
– S
p
≥ S/2
● Aluminum
alloy cable or
copper-clad
aluminum
cable:
– S: 95–240
mm
2
– S
p
≥ S/2
24–66 mm
Prepared
by the
customer
SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual
5 Electrical Connections
Issue 11 (2021-11-10)
Copyright © Huawei Technologies Co., Ltd.
44
