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INSTALLATION GUIDE
12.3.
SMART STRING BOX
Electrical Specifications
SMART STRING BOX
U.M.
600V
800V
900V
1000V
Maximum DC input voltage
V
740 Vdc
880 Vdc
900 Vdc
1000 Vdc
DC string fuses (positive
pole)
A
Additional fuse sizes available, to be defined when ordering the
equipment
Input current Impp (Impp)
A
8
Max input current (Isc)
A
10
Uc Pulse withstanding
voltage
kV
12 A - PV rated (10x38)
4 kV: Strings inputs
4 kV: DC output
Table 34: SMART STRING BOX electrical specifications with anti-inversion diodes
SMART
without
diodes
STRING
BOX
anti-inversion
Maximum DC input voltage
U.M.
600V
800V
900V
1000V
V
740 Vdc
880 Vdc
900 Vdc
1000Vdc
12 A - PV rated (10x38)
DC string fuses (positive
pole)
A
Additional fuse sizes available, to be defined when ordering the
equipment
Input current Impp (Impp)
A
10
Max input current (Isc)
A
11
Uc Pulse withstanding
voltage
kV
4 kV: string input
4 kV: DC output
Table 35: SMART STRING BOX electrical specifications with anti-inversion diodes
WITHOUT ANTI-THEFT SYSTEM
SMART STRING
BOX
Versions 600V, 800V,
900V
Power supply
From PV field
V > 200 Vdc
Version 1000V
From 230 Vac grid
From DC 8-15 Vdc
power supply unit
WITH 24h/24h ANTI-THEFT
SYSTEM
From 230 Vac
From 12 Vdc battery
From DC 8-15 Vdc power supply
unit
Table 36: SMART STRING BOX power supply ratings
Rev. 02 - 29/04/2013
87/106