4. Installation
4. Installation
PE
N
L
Load_a
Distribution box
CB
CB
RCD
RCD
L
N
PE
Critical Load
Back-up
L
N
PE
L
N
PE
Grid
RS485
L3
L2
L1
GRID
N
PE
CT3
CT2
CT1
B
A
9
10
11
12
13
14
15
16
17
18
19
20
Meter
1
2
3
4
5
6
7
8
V
oltage
Sampling
Power
CT Wires
Left: Black
Right: White
RCD
RCD
PV strings
CB
Battery
CB
S5-EH1P-L
RS485
Meter
F
ig
u
re 4
.4
0 (
E
a
s
tr
o
n S
D
M
6
3
0
M
C
T
)
Critical Load:3kw
PV strings
Battery
S5-EH1P-L
Back-up
L
N
PE
La
N
PE
Grid
Distribution box
RCD
RCD
RS485
PE
N
L
Load_a
L
N
PE
PE
N
La
Load_b
Lb
Lc
PE
N
Lc
Load_c
RCD
RCD
GRID
RS485
Lc
Lb
La
N
PE
CT
c
CTb
CT
a
N
La
Lc Lb
La
N
Meter
1
2
3
4
1
3
1
2
5
6
7
8
9
1
0
2
1
2
2
2
3
A
B
F
ig
u
re 4
.4
1 (
A
c
re
l A
C
R
1
0
R
-1
6
D
T
E
4
)
.31.
.32.
4.8.2 Three phase meter installation
Power cable
N
o
te
:
If t
h
e C
T i
s i
n
s
ta
ll
e
d i
n t
h
e w
ro
n
g d
ir
e
c
ti
o
n
,
th
e H
y
b
ri
d I
n
v
e
rt
e
r c
a
n
't w
o
rk n
o
rm
a
ll
y
.
Power cable
N
o
te
:
If t
h
e C
T i
s i
n
s
ta
ll
e
d i
n t
h
e w
ro
n
g d
ir
e
c
ti
o
n
,
th
e H
y
b
ri
d I
n
v
e
rt
e
r c
a
n
't w
o
rk n
o
rm
a
ll
y
.
CT
direction
towards to grid
G
ri
d
s
id
e
K
L
CT
direction
towards to grid
G
ri
d
s
id
e
K
L
