Fronius Eco 25.0-3-S, Руководство по эксплуатации

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11
EN
String fuses
WARNING!
An electric shock can be fatal.
Danger from voltage at the fuse holders. The fuse holders are live when voltage is present
on the DC connection of the inverter, even when the DC switch is switched off. Make sure
that the DC side is de-energised before carrying out any work on the inverter fuse holder.
String fuses are used in the Fronius Eco to provide additional protection for the solar mod -
ules.
The maximum short circuit current I
sc
, the maximum module return current I
R
or the maxi -
mum string fuse rating specified in the module data sheet of the respective solar module
is crucial in affording the solar modules the correct fuse protection.
The maximum short circuit current I
SC
per terminal is 15 A.
Where necessary, a tripping current higher than 15 A may be selected for the string fuses.
A tripping current of 20 A must not be exceeded.
If the inverter is operated with an external string combiner box, a DC Connector Kit must
be used (item number: 4,251,015). In this case the solar modules are protected externally
in the string combiner box, and the metal bolts need to be used in the inverter.
The national regulations regarding fuse protection must be observed. The electrical engi -
neer carrying out the installation is responsible for the correct choice of string fuses.
NOTE!
To avoid the risk of a fire, only replace faulty fuses with new ones of the same rating.
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
Option DC SPD
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! Do not remove cover!
Each Terminal: I Each Terminal: I
max max
= 15 A = 15 A