Samlexpower Evolution EVO-2212, Owner'S Manual

Page: 39 / 136

38 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 39
TABLE 3.1 SIZING OF BATTERY SIDE CABLES AND EXTERNAL BATTERY SIDE FUSES
Item
(Column 1)
Rated
Continuous
DC Input
Current
(See Note
1)
(Column 2)
NEC
Ampac-
ity = 125%
of Rated
DC Input
Current at
Column 2
(See Note
2)
(Column 3)
90°C Copper Conductor. Size Based on NEC Ampacity at
Column (3) or 2%Voltage Drop, whichever is Thicker (See
Note 3)
External
Fuse Based
on NEC
Ampacity
at Column
(3) (See
Note 4)
(Column 9)
Cable Running Distance
between the Unit and the
Battery
(Cable Routing In Free Air)
Cable Running Distance
between the Unit and the
Battery
(Cable Routing In Race-
way)
Up to 5 ft.
(Column 5)
Up to 10 ft.
(Column 6)
Up to 5 ft.
(Column 7)
Up to 10 ft.
(Column 8)
EVO-2212 266A 333A AWG#3/0
AWG #4/0
(This size,
based on 2%
voltage drop,
is thicker than
NEC based
size)
2 X AWG
#4/0
(MCM 350)
2 X AWG
#4/0
(MCM 350)
350A
EVO-2224 133A 166A AWG #2 AWG #2 AWG #1/0 AWG #1/0 175A
EVO-3012 373A 466A
2 X AWG
#3/0
(MCM 300)
2 X AWG #3/0
(MCM 300)
Not recom-
mended
Not recom-
mended
500A
EVO-4024 266A 333A AWG#3/0
AWG #4/0
(2% voltage
drop is
thicker)
2 X AWG
#4/0
(MCM 350)
2 X AWG
#4/0
(MCM 350)
350A
External
Charger
50A 63A
AWG #6
(2% voltage
drop is
thicker)
AWG #2
(2% voltage
drop is thicker)
AWG #6
AWG #2
(2% voltage
drop is
thicker)
70A
NOTES FOR TABLE 3.1 - SIZING OF BATTERY SIDE CABLES AND EXTERNAL BATTERY
SIDE FUSES
1) Column 2 indicates the Rated Continuous DC Input Current drawn from the
battery in Inverter Mode
2) Column 3 indicates NEC Ampacity based on which cable conductor sizes
(Columns 5 to 8) are determined. NEC Ampacity is not less than 125% of
the Rated Continuous DC Input Current (Column 2) - Refer to NEC-2014
(National Electrical Code) - Section 215.2(A)(1)(a) for Feeder Circuits.
3) Columns 5 to 8 indicate cable conductor size that is based on the following
2 considerations. Thicker conductor out of the following 2 considerations has
been chosen:
a) As per guidelines in NEC-2014 (National Electrical Code) - Ampacity Table
310.15(B)(16) for Raceway and Ampacity Table 310.15(B)(17) for Free
Air. Conductor size is based on (i) NEC Ampacity specified at Column 3,
(ii) Copper conductor with temperature rating of 90°C and (iii) Ambient
temperature of 30°C / 86°F
b) Voltage drop across the length of cables has been limited to 2% of 12V
/ 24V. Voltage drop has been calculated by multiplying the Rated DC
Input Current (Column 2) and the resistance of the total length of Copper
conductor (the total length of conductor has been taken as 2 times the
running distance between the unit and the battery to cover 2 lengths of
Positive and Negative cable conductors).
SECTION 3 | Installation