Fuses must be chosen among the standard commercially available
ratings, selecting the value that is closest to the obtained result.
The fuse selected with the calculation described previously takes into
consideration derating factors and corrections such as:
- increase in the effective irradiation of the installation area
- Increase in the Isc on the basis of the high temperature of the PV
module
- Thermal derating of the fuse
- Maximum return current of the PV modules installed
ABB can supply fuse kits of different values
Code Description Quantity
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 documents
supplied by the protection fuse manufacturer.
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