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4.3.1 Sunways STH hybrid inverter electrical wiring diagram
This diagram shows Sunways STH 4~12kW series hybrid inverter wiring structure and
composition, concerning the real project, the installation and wiring have to be in line with the
local standards.
4.3.1.1 Single inverter wiring diagram
This diagram is an example without special requirement on electrical wiring connection.
Neutral line of AC supply can be isolated or switched.
Figure 4-8
Grid
PE
N
L3
L2
L1
CT C
CT B
CT A
PV S
trings
Bat
te
ry
To Battery
To Sunways Meter
Power Meter
Sunways Meter
AC Br
eack
er
AC Br
eack
er
AC Breacker
AC Breacker
AC Breacker
1-phase
Lo
ads
3-phase
Lo
ads
Lo
ads
FN
Se
t
Ru
n
Ac
re
l
AC
R1
0R
R_
P
PV
Arr
ay
Grid
Normal
Lo
ads
RCD
RCD
Back
-up
Lo
ads
PV
Arr
ay
Communic
ation
Communic
ation
BA
CK
-UP
The additional
gr
ounding hole
ON-GRID
PV1+
Br
eak
er
E-BAR
N-BAR
Br
eak
er
RJ45
1(L1)
5(L1-S1)
12(L)
9(L3-S1)
10(L3-S2)
2(L2)
6(L1-S2)
3(L3)
7(L2-S1)
4(N)
8(L2-S2)
13(N)
Br
eak
er
Main Swit
ch/Br
eak
er
Sunw
ays C
T
C
T-1
C
T-2
C
T-3
Swit
ch/Br
eak
er
L1
L1
L2
L2
L3
L3
N
N
PV2+
PV1-
PV2-
RJ45-BMS
RJ45-Me
ter
B+
B-
Bat
te
ry
ST
H
Hybrid
Inv
ert
er
Sunw
ays Me
ter
Figure 4-9 Standard wiring diagram
