Principal wiring box components
AC+DC switch
14
(wiring box S2 / S2F / S2X)
Model: Telergon TFV1031E25501 or equivalent
AC side
Voltage Utilisation category Current
415Vac AC22A 50A
DC side (per individual input channel)
Voltage Utilisation category Current
1000Vdc DC21B 40A
String fuses
22
(wiring box S2F / S2X)
The standard string protection fuses installed on the inverter have the
following features:
Voltage Rating Type
1000Vdc Max. 20A gPV
DC surge arresters
15
(wiring box S2X)
The DC surge arresters installed for each input channel are type Dehn
DG M YPV SCI 1000 FM (or equivalent), each composed of three inter-
changeable cartridges, type DG MOD PV SCI 500 (A) and DG MOD PV
500 (B).
In the event of damage to the surge arresters caused by atmospheric
agents, spare part kits may be ordered quoting code KIT SURGE DC
SIDE TRIO
AC surge arresters
18
(wiring box S2X)
The AC surge arresters installed are type Dehn DG M TT 275 FM (or
equivalent), composed of four interchangeable cartridges, type DG MOD
275 (D) and DG MOD NPE (C).
In the event of damage to the surge arresters caused by atmospheric
agents, spare part kits may be ordered quoting code KIT SURGE AC
SIDE TRIO