SamplexPower PST-1500-12 Mode D'emploi page 33

SECTION 8 |
become red-hot, the insulation will melt and the cable will ultimately break. This inter-
ruption of very high current will generate a hazardous, high temperature, high-energy
arc with accompanying high-pressure wave that may cause fire, damage nearby objects
and cause injury. To prevent occurrence of hazardous conditions under short circuit con-
ditions, the fuse used in the battery circuit should limit the current (should be "Current
Limiting Type"), blow in a very short time (should be Fast Blow Type) and at the same
time, quench the arc in a safe manner. For this purpose, UL Class T Fuse or equivalent
should be used (As per UL Standard 248-15). This special purpose current limiting, very
fast acting fuse will blow in less than 8 ms under short circuit conditions. Appropriate
capacity of the above Class T fuse or equivalent should be installed within 7" of the
battery Plus (+) Terminal (Please see Table 8.2 for fuse sizing). Marine Rated Battery
Fuses, MRBF-xxx Series made by Cooper Bussmann may also be used. These fuses comply
with ISO 8820-6 for road vehicles.
WARNING!
Use of an appropriately sized external fuse as described above is mandatory to
provide safety against fire hazard due to accidental short circuit in the battery
cables. Please note that the internal DC side fuses are designed to protect ther
internal components of the inverter against DC side overloading. These fuses
will NOT blow if there is a short circuit along the length of wires connecting the
battery and the inverter.
8.4.5 Recommended Sizes of Battery Cables and Fuses
Sizes of cables and fuses are shown in Table 8.2. Sizing is based on safety considerations speci-
fied in UL-458, NEC-2014 and ISO-10133. Please refer to "Notes for Table 8.2" for details.
Table 8.2 Recommended Sizing of Battery Cables and External Battery Side Fuse
Model No. Rated
DC Input
Current
(See
Note 1)
(1) (2)
PST-1500-12 200A
PST-1500-24 100A
Installation
Minimum External
Ampacity Battery
of cable as Fuse Size
per NEC (Based on
(See Column 2)
Note 2) (See
Note 3)
(3) (4)
250A 200A
125A 100A
Minimum cable size
(See Note 4)
3 ft / 6 ft /
0.91M 1.83M
(5) (6)
AWG#1/0 AWG#2/0
AWG#6 AWG#4
Table Continues Next Page }
SAMLEX AMERICA INC. | 33
Part No.
of Recom-
mended
10 ft /
Samlex
3.05M
America
Inverter
Installa-
tion Kit
(See
Note 5)
(8)
(7)
AWG#4/0 DC-2500-
KIT (2.5%
drop for
10 ft)
AWG#4 DC-1000-
KIT