M125HV_111 have ind
ependent MPPT inputs.
The combiners utilize standard 10mm x 85mm PV combiner fuses and associated
fuse holders. Because of the TL design, all strings are floating with respect to
ground, and two fuses are required per string input connected in series with
the positive and negative string leads.
Any 10mm x 85mm listed PV fuse (15A / 20A) can be used for replacement
purposes. The standard builded in M125HV_111 is 20A Fuse.
T
he specifications for the required fuse and fuse brands used in the factory are
listed below.
5.3 Replace Internal String Fuse
IEC listed IEC 60269-6
Table 5-2: Combiner Fuse Specification
Rated current
Rated voltage
Operating Class
Fuse Type
20 A
1500 V
Solar PV
10x85 ferrule
Typical Mfr
Mfr P/N
Littelfuse, Bussmann
SPXV 20, PV-20A10F85L
- Ensure DC and AC cables are always de-energized during the maintenance to
avoid the shock hazard risk!
- Before removing the fuses, please turn off DC switch and make sure the inverter
has stopped working, then remove the corresponding H4 Plus connector.
DANGER : ELECTRICAL HAZARD!!
66
Maintenance
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