Fronius Symo x.x-3-S - Manuale (Pagina 12)

10
Notes regarding
dummy devices A dummy device is not suitable for connecting operationally to a photovoltaic system, and
must only ever be used for demonstration purposes.
IMPORTANT! Never connect DC cables to the DC connection sockets on a dummy de-
vice.
The connection of de-energised cables or sections of cable for demonstration purposes is
permissible.
A dummy device can be recognised by its device rating plate:
Example: Device rating plate of a dummy device
String fuses String fuses are used in the Fronius Eco to provide additional protection for the solar mod-
ules.
The decisive factor is the maximum short circuit current I
SC
of the solar module concerned.
The national regulations in respect of fuse protection must be observed. The electrical en-
gineer carrying out the installation is responsible for the correct choice of string fuses.
As an option, the inverter can be supplied with the following fuses:
-
6 x 15 A string fuses on the DC+ input and 6 x metal pins on the DC- input
- 12 x metal pins
NOTE! To avoid the risk of a fire, only replace faulty fuses with new ones of the
same rating.
Option DC OVP
DC+ 2.1
DC+ 1.1
DC+ 1.3
DC+ 1.2
DC+ 2.3
DC+ 2.2
DC- 1.2
DC- 1.1
DC- 1.3 DC- 2.1 DC- 2.2 DC- 2.3
Do not remove cover!
DC: I
max
= I
SC
< 12 A