Page 22
©
2020 Sensata Technologies
Installation
2.5.6
AC Wiring Confi gurations
The following table provides the different wiring con
fi
gurations for installing and connecting the
AC conductors to and from the inverter (refer to Figures 2-9 to 2-11 for installation drawings
showing these con
fi
gurations).
Table 2-3, AC Input/Output Wiring Confi gurations
SI/SO Single In/
Single Out
DI/SO
Dual In/
Single Out
DI/DO
Dual In/
Dual Out
Maximum AC
Source
1
Required
120 VAC @ 50A
(AC Input 1 only)
120 VAC @
≤
50A
per input leg
2
120 VAC @
≤
50A
per input leg
2
Reason to Use
Have a 120 VAC
source.
Requires a separate
inverter sub-panel.
Want dedicated
charging and
dedicated pass-thru
while the AC source
is on.
Requires a separate
inverter sub-panel.
May need to power
large 240 VAC
loads
(requires 120/240
VAC input source).
Requires a separate
inverter sub-panel.
Maximum Input
Breaker Required
3
–
Minimum Wire
Size
(AWG)
4
50A
(single pole)
–
#8 AWG (in)
#6 AWG (out)
50A
(dual pole)
–
#8 AWG (in)
#6 AWG (out)
50A
(dual pole)
–
#8 AWG (in)
#6 AWG (out)
Maximum Output
Capacity
(Standby Mode)
7200W
(120 VAC/60A
on Hot 1 out)
6000W
(50A @120 VAC on
Hot 2 out)
13200W
(120/60A on Hot 1
out and 120/50A
Hot 2 out)
Diagram
Figure 2-9
Figure 2-10
Figure 2-11
Note
1
– AC source is from either the utility/grid power (i.e., shorepower) or an AC generator.
Note
2
–
If two legs @120 VAC are used, they must be from the same source (i.e., common
neutral) and not in phase with each other. You can use a neutral and two legs from either a split-
phase (120/240 VAC) source or from a three-phase (120/208 VAC) source.
Note
3
–
The ‘Maximum Input Breaker Required’ is used to protect the inverter’s internal AC input
circuit, which is rated for 50 amps for each input.
Note
4
–
The ‘Minimum Wire Size (AWG)’ is based on the ‘Maximum Input Breaker Required’ size
and the ‘Maximum Output Capacity (Standby Mode)’ current. If the wire size is reduced, then an
appropriately sized over-current protection device (i.e. fuse/circuit-breaker) would need to be
installed to prevent damage to the reduced sized wire.
