Fronius Symo x.x-3-S - Manuale (Pagina 13)

11
EN
Criteria for select-
ing the right
string fuses The following criteria must be met for each solar module string when selecting suitable fus-
es:
-
I
N
> 1.8 x I
SC
- I
N
< 2.4 x I
SC
- U
N
>/= max. input voltage of the inverter used
- Fuse dimensions: diameter 10 x 38 mm
I
N
Nominal current of fuse
I
SC
Short circuit current for standard test conditions (STC) according to the solar mod-
ule data sheet
U
N
Rated voltage of fuse
NOTE! The nominal current rating of the fuse must not exceed the maximum fuse
protection specified in the data sheet supplied by the solar module manufacturer.
If a maximum fuse protection is not specified, then this information must be re-
quested from the solar module manufacturer.