The fuse selected according to the formula described above must take
into account adjustments and derating factors such as:
- Increase in the effective incident radiation at the installation site
- Increase in Isc as a result of high temperature in the PV module
- Thermal derating of the fuse
- Maximum return current of the installed PV modules
ABB can supply fuse kits of different values
Code Description Quantity
KIT 10 FUSES 8A Kit of 8A fuses 10
KIT 10 FUSES 10A Kit of 10A fuses 10
KIT 10 FUSES 12A Kit of 12A fuses 10
KIT 10 FUSES 15A Kit of 15A fuses 10
For effective calculation taking real installation conditions into account, refer to the docu-
ments supplied by the fuse manufacturer.
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