SECTION 8 |
Installation
40
the output section of the inverter and may also pose a fire and safety
hazard. If an electrical Panelboard / Load Center is being fed from the
utility power / generator and the inverter is required to feed this panel
as backup power source, the AC power from the utility power/ generator
and the inverter should first be fed to a manual selector switch /
Automatic Transfer Switch and the output of the manual selector
switch / Automatic Transfer Switch should be connected to the electrical
Panelboard / Load Center.
2. To prevent possibility of paralleling and severe damage to the inverter,
never use a simple jumper cable with a male plug on both ends to
connect the AC output of the inverter to a handy wall receptacle in the
home / RV.
8.5.1 Ac Output Connection wiring
TABLE 8.4 RECOMMENDED SIZING OF AC OUTPUT WIRING AND BREAKER
Model No.
(1)
Maximum
continuous AC
output current A
(2)
Minimum
Ampacity of
AC output Line
and Neutral
conductors as
per NEC (125%
times Column 2)
(3)
Maximum size
of external AC
output Breaker
(based on
column 3)
(4)
AC Output Cable
size mm
2
(5)
SWI 400-12/24
1.8
2.25
2
1.5 - 2.5
SWI 700-12/24
3
3.75
4
1.5 - 2.5
SWI 1100-12/24
4.8
6
6
1.5 - 2.5
SWI 1600-12/24
7
8.75
10
1.5 - 2.5
SWI 2100-12/24
9.1
11.4
13
1.5 - 2.5
8.6 GROUNDING TO EARTH OR TO OTHER DESIGNATED GROUND
For safety, ground the metal chassis of the inverter to the Earth Ground or to the
other designated ground (for example, in a mobile RV, the metal frame of the RV
is normally designated as the Negative DC Ground). A chassis Grounding Lug (see
section 6) has been provided for grounding the metal chassis of the inverter to the
appropriate ground.
When using the inverter in a building, connect a 2.5 mm
2
insulatedstranded copper
wire from the above equipment grounding lug to the Earth Ground connection
(a connection that connects to the Ground Rod or to buried metallic water pipe or
to another connection that is solidly bonded to the Earth Ground). The connections
