Sungrow SG33CX-P2 - Page 47

37
table 5-3 Cable Requirements
No. Cable
Type
Specification
Cable Di-
ameter
(mm)
Cross-sectional Area(mm
2
)
1 DC cable
Multi-core PV
cable with a
maximum with-
stand voltage of
1100V
4.7 ~ 6.4 4 ~ 6
2
External
grounding
cable
Outdoor single-
core copper wire
/
The same as that of the PE wire in
the AC cable
3 AC cable
Outdoor four-
core/five-core
copper wire
18 ~ 38
L1,L2,L3,N wire：16~35(SG25/30/
33/36/40CX-P2)
PE wire：16**(SG25/30/33/36/
40CX-P2)
L1,L2,L3,N wire：35~50(SG50CX-
P2)
PE wire： refer to"table 5-4 PE wire
requirements"(SG50CX-P2)
Outdoor four-
core/five-core
aluminum wire*
L1,L2,L3,N wire：25~35(SG25/30/
33/36/40CX-P2)
PE wire：16**(SG25/30/33/36/
40CX-P2)
L1,L2,L3,N wire：35~50(SG50CX-
P2)
PE wire：refer to"table 5-4 PE wire
requirements"(SG50CX-P2)
4
Communi-
cation
cable
Shielded twisted
pair
5.3 ~ 7
0.5~1
CAT 5E outdoor
shielded network
cable
/
*A copper to aluminum adapter terminal is required when an aluminum cable is used. For
details, refer to " Aluminum Cable Requirements".
** The specifications are valid only when the phase wire and PE wire use the same material.
If otherwise, ensure that the cross section of the PE wire produces a conductance equivalent
to that of the 16mm
2
in the table.
User Manual 5 Electrical Connection