No. Cable Category Conductor
Cross-Sectional
Area Range
Outer
Diameter
Source
AC output
power cable
(single-core)
[2]
You are advised to use a
single-core outdoor cable
and M12 OT/DT
terminals.
● Copper cable:
– S: 70–240
mm
2
● Aluminum
alloy cable or
copper-clad
aluminum
cable:
– S: 95–240
mm
2
14–32 mm Prepared
by the
customer
Note [1]: The value of S
p
is valid only if the conductors of the PE cable and AC power cable use
the same material. If the materials are dierent, ensure that the conductor of the PE cable with a
proper cross-sectional area produces a conductance equivalent to that of the cable specied in
the table. The specications of the PE cable are subject to this table or calculated according to IEC
60364-5-54.
Note [2]: For some models, the outer diameter of a single-core cable ranges from 14 mm to 36
mm based on the label in the maintenance compartment.
Table 5-3 Cable description of 4-pin models (S: cross-sectional area of the AC cable conductor; S
p
:
cross-sectional area of the PE 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
PE cable
[1]
Single-core outdoor
copper cable and M10
OT/DT terminals
S
p
≥ S/2 N/A 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. 45
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