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Figure 19. AC electric Box
PIN WPE 6mm
2
PE
INVERTER
N
L1
PIN WDE 35mm
2
Figure 20. Example of a single line diagram of the AC electric box
Table 5. AC cable cross sections
Cable cross
section
1200
4 mm²
51 m
6 mm²
77 m
10 mm²
128 m
16 mm²
205 m
25 mm²
321 m
35 mm²
449 m
Note: Considering 1% ∆U (Voltage Drop)
16
Solargen solar PV
230 VAC 50 Hz
2
Wire HO7V-K 6mm blue
2
Wire HO7V-K 6mm black
Thermal protector
c shape
25A
ID 230V 40A
300 mA
R
PIN WDU 35 mm
Maximun Length
1700
2500
3300
38 m
25 m
16 m
57 m
37 m
25 m
95 m
62 m
41 m
152 m
100 m
66 m
238 m
156 m
104 m
333 m
218 m
146 m
3. PV KIT INSTALLATION
3.5.
AC electric box (available as an optional extra).
3.5.1.
Description
The AC electrical panel consists of a surge protection of type II power
surge from the grid or from the protective conductors. This will also con-
sist of a circuit breaker for over current protection and a circuit breaker for
indirect contact protection.
3.5.2.
Location
The AC electric box should be installed as close as possible to the
inverter's AC output.
3.5.3.
Single line diagram
Figure 20 shows the single line diagram of the AC electric box.
Wire HO7V-K 6mm yellow/green
1
3
2
4
N
1
N
2
2
N
L1
ENERGY METER
3.6.
Connection to the grid
3.6.1.
AC cable size
The connection to the inverter should be done with 3 core cable (L, N, E).
The AC terminals for grid connection, included in the inverter's package,
allow the connection of a maximum cross section of 4 mm².
Table 4 presents the maximum length of cables, according to the section
and output power of the inverter.
(Figure 19)
2
L1
PE
OK CHANGE
OVP Weidmüller
Ref. 8859730000
N
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