Note!
The solar modules connected to the inverter must comply with the IEC 61730
Class A standard.
Note!
When photovoltaic modules are exposed to light, they supply current to the invert-
er.
General com-
ments regarding
solar modules
To enable suitable solar modules to be chosen and to use the inverter as efficiently as
possible, it is important to bear the following points in mind:
-
If insolation is constant and the temperature is falling, the open circuit voltage of the
solar modules will increase. The open circuit voltage must not exceed the maximum
permissible system voltage. If the open circuit voltage exceeds the specified values,
the inverter will be destroyed and no warranty claims will be entertained.
-
The temperature coefficients on the solar modules data sheet must be observed.
-
More exact values for dimensioning the solar modules can be provided by suitable
calculation programs, like the Fronius Solar.configurator (which can be downloaded
from http://www.fronius.com).
Note!
Before connecting up the solar modules, check that the voltage for the solar mod-
ules specified by the manufacturer corresponds to the actual measured voltage.
DC terminals
DC-
*
DC =
DC1+
DC2+
*
min. 2,5 mm² - 16 mm²
DC Con Kit 25
6 - 25 mm²
DC Con Kit 35
> 16 - 35 mm²
Max. cross-section of each DC cable:
16 mm²
Min. cross-section of each DC cable:
2.5 mm²
The DC cables can be connected to the
DC terminals without ferrules.
IMPORTANT!
When using ferrules for DC
cables with a cross-section of 16 mm², the
ferrules must be crimped with a right-
angled cross-section.
The use of ferrules with insulating collars
is only permitted up to a max. cable cross-
section of 10 mm².
For double insulated DC connection leads
with a cable diameter greater than 6 mm,
70 mm of the outer jacket must be stripped
in order to connect the cable to the DC ter-
minal.
Note!
To ensure effective strain relief of
the solar module strings, only use cables
with identical cross-sections.
29
EN
Summary of Contents for Eco 25.0-3-M
Page 2: ......
Page 12: ...ON OFF Lock 1 2 3 4 Fitting the mount ing bracket to a wall 1 2 12...
Page 22: ...Replacing fuses ON OFF Lock AC OFF 2 CHECK VALUES 22...
Page 32: ...5 6 7 Note Observe the torque values marked on the side underneath the terminals 8 9 32...
Page 36: ...3 4 5 36...
Page 38: ...1 2 3 4 38...
Page 39: ...5 6 7 39 EN...
Page 43: ...8 9 43 EN...
Page 58: ...58...
Page 59: ...59 EN...
Page 60: ......
