SECTION 8 |
Installation
39
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 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.
Max. cont. DC
input current
A
Max. External
Battery Fuse
Size
Fuse (internal
fuse rating)
Min. Cable
size mm
2
<1.5 meter
Min. Cable
size mm
2
>1.6 - 3 meter
SWI 400-12
48
50
35A * 2
10
16
SWI 400-24
24
25 - 30
35A
6
10
SWI 700-12
84
100
35A * 3
25
35
SWI 700-24
42
50 - 60
30A * 2
10
16
SWI 1100-12
132
150
40A * 4
35
50
SWI 1100-24
66
80
40A * 2
16
25
SWI 1600-12
192
200
35A * 6
50
70
SWI 1600-24
96
100
35A * 3
25
35
SWI 2100-12
252
300
35A * 8
70
95
SWI 2100-24
126
150
35A * 4
35
50
8.4.6 Dc Input Connection
The DC input terminals for battery connection have a Hex screw connection.
The Hex screw for the SWI 400 and 700 series is M6. The Hex screw for the SWI 1100,
1600 and 2100 series is M8. Use the correct cable size (Table 8.2) and cable lugs.
8.4.7 Reducing RF Interference
Please comply with recommendations given in Section 3 - “Limiting Electromagnetic
Interference”.
8.5 AC SIDE CONNECTIONS
WARNING! Preventing Paralleling of the Ac Output
1. The AC output of the inverter cannot be synchronized with another AC
source and hence, it is not suitable for paralleling. The AC output of the
inverter should never be connected directly to an electrical Panelboard
/ Load Center which is also fed from the utility power/ generator. Such a
connection will result in parallel operation and AC power from the utility
/ generator will be fed back into the inverter which will instantly damage
