INSTALLATION, USE AND
MAINTENANCE
SUNWAY STRING BOX
LT 1500V 24 INPUTS
Rev. 02 - Error! Unknown document property
name.
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11.4.1. Choosing the String Fuse Size
The fuse size is to be chosen based on the string short-circuit current. Please refer to the table below. Fuse
brands other than those in the table are to be explicitly authorized by Enertronica Santerno.
Maximum
Input
Current
Isc
@
ambient 45°C (A)
Fuse Size
Type
of
fuse
(Bussmann)
Type
of
fuse
(Mersen)
Type
of
fuse
(Siba)
≤ 5.5
8
N/A
HP 15M 8
50 115 28.08
5.5< ≤7.1
10
N/A
HP 15M 10
50 115 28.10
7.1< ≤8.8
12
PV-12A10F85L
HP 15M 12
50 115 28.12
8.8< ≤11
15
PV-15A10F85L
HP 15M 15
50 115 28.15
11< ≤14.3
20
PV-20A10F85L
HP 15M 20
N/A
14.3< ≤17.6
25
PV-10M25F85L
HP 15M 25
N/A
17.6< ≤22
30
N/A
HP 15M 30
N/A
Table 9: Fuses recommended based on I
SC
WARNING
Fuse rating must also comply with the requirements featured in the datasheet
issued by the photovoltaic panel manufacturer.
WARNING
The maximum number of strings connected to the product shall be calculated
based on the allowable output rated power, as well as on the ambient
temperature and the product configuration.
11.5. Mechanical Specifications
Product
Dimensions [mm]
Net weight [kg]
Gross weight [kg]
SB-24-LT07-1500V II
SB-24-LT08-1500V II
SB-24-LT10-1500V II
635 x 890 x 300
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Table 10: Dimensions and weight of the SUNWAY STRING BOX LT
