Samlexpower PST-1500-12 Owner's Manual - Section 8 |
34 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 35
Table 8.2 Recommended Sizing of Battery Cables and External Battery Side Fuse
(continued from previous page)
Model No.
(1)
Maximum
Continu-
ous DC
Input
Current
(See
Note 1)
(2)
Minimum
Ampacity
of cable as
per NEC
(See
Note 2)
(3)
External
Battery
Fuse Size
(Based on
Column 2)
(See
Note 3)
(4)
Minimum cable size
(See Note 4)
Part No.
of Recom-
mended
Samlex
America
Inverter
Installa-
tion Kit
(See
Note 5)
(8)
3 ft /
0.91M
(5)
6 ft /
1.83M
(6)
10 ft /
3.05M
(7)
PST-2000-12
240A
300A
240A
AWG#2/0 AWG#2/0
AWG#4/0
DC-2500-
KIT (2.5%
drop for
10 ft)
PST-2000-24
120A
150A
120A
AWG#4
AWG#4
AWG#2
DC-2000-
KIT
NOTES FOR TABLE 8.2
1)Column2indicatestheratedcontinuousDCinputcurrentdrawnfromthebattery.
2)Column3indicatesminimumNECAmpacityforsizingofconductors.NECAmpacity
isnotlessthan125%oftheratedcontinuousDCinputcurrent(Column2)-Referto
NEC-2014 (National Electrical Code) - Section 215.2(A)(1)(a) for feeder Circuits.
3)Column(4)indicatesthesizeofexternalfuseinthebatterycircuit.Itismandatoryto
install this fuse within 7” of the battery Positive terminal to protect the battery cables
against short circuit. Amp rating of the fuse is based on the following considerations:
a)NotlessthantheMaximumContinuousDCInputCurrent(Column2)
b) Closest Standard Ampere Rating of fuse has been used - Refer to NEC-2014
(NationalElectricalCode)-Section240.6(A)
c) Where Standard fuse Rating does not match the required Ampacity (Col-
umn2),thenexthigherStandardRatingofthefusehasbeenused-Referto
NEC-2014 (National Electrical Code) - Section 240.4(B)
d) Type of fuse: Fast-acting,CurrentLimiting,ULClassT(ULStandard248-15)
or equivalent
4) Columns 5 to 7 indicate minimum cable conductor size that is based on the following
2 considerations. Thicker conductor out of the following 2 considerations has been
chosen:
a)AsperguidelinesinISO10133for105°Ccableinsulationandcablerunninginfree
air. Conductor size is based on:
(i)NECAmpacityspecifiedatColumn3,
(ii) Copper conductor with temperature rating of 105˚C/221˚f and