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000564AG
5 - Installation
D
istribution grid output connection (AC side)
To connect the inverter to the grid you need 3 connections: ground, neu-
tral and phase.
In any case, connection of the inverter to ground is
mandatory.
Any failure of the inverter when it is not connected to ground through the appropriate terminal
is not covered by the warranty.
Insert the grid cable into the inverter using the AC cable gland
48
called AC
GRID (M25 equipped with toroid) and make the connections to the AC
output terminal block
25
.
Use a properly sized tripolar cable and check the tightness of the AC cable
gland
48
at the end of the installation.
C
haracteristics and sizing of the line cable
The cross-section of the AC line conductor must be sized in order to pre-
vent unwanted disconnections of the inverter from the grid due to high
impedance of the line that connects the inverter to the power supply; If
the impedance is too high it causes an increase in the AC voltage which,
on reaching the limit set by the standards in the country of installation,
causes the inverter to switch off.
The table shows the maximum length of the line conductor based on the
cross-section of this conductor:
Conductor cross-sec-
tion
of line (mm²)
Maximum length of the
line conductor (m)
REACT-3.6-TL
REACT-4.6-TL
4
16 m
10 m
6
24 m
15 m
10
41 m
25 m
16
65 m
40 m
The values are calculated in nominal power conditions, considering:
- loss of power along the line no greater than 1%
- use of copper cable, with HEPR rubber insulation and positioned in open air
max 16 mm²
10 ÷ 17 mm
LOAD MANAGER BOX
8
7
D
5
6
C
3
4
B
1
2
A
J1
5
1
6
2
7
3
8
4
25
48
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