14
Freedom SW Installation Guide
Planning Preparations
Size of AC Input Wiring
Wire size must be coordinated with the
overcurrent protection provided ahead of the wire involved, in accordance
with the electrical codes or regulations applicable to your installation.
Therefore, the wiring used between the AC input circuit breaker and the
inverter/charger input must be sized to match the input breaker rating.
For dual input, the wire may be red or black; consult the documentation
provided with the AC source (utility or generator).
Size of AC Output Wiring
Wire size must be coordinated with the
current the wiring will carry. This current may be determined by the
25-amp (Freedom SW 3012) and 20-amp (Freedom SW 2012) maximum
inverter current, or by the bypass current, which is determined by the
overcurrent protection provided ahead of the Freedom SW.
Some conditions for Freedom SW:
•
If the input wiring is split-phase, the output wiring must be sized to
coordinate with the breakers used on the input. Refer to your
applicable installation codes.
•
If the input wiring is dual-input and the output wiring is single-input,
the following rules apply: If the input breaker on L1 is greater than
25 amps, the wire size must be coordinated for that amperage. If the
input breaker on L1 is less than 25 amps, the wire size must be
coordinated for 25 amps. The wire size must not be sized for anything
lower than 25 amps.
•
If both the input and the output wiring are dual-input, the output wiring
for each line (L1 and L2) must be calculated separately, following
these rules: If the input breaker on the specific line is greater than
25 amps, the wire size for that line and its neutral must be coordinated
for that amperage. If the input breaker on the specific line is less than
25 amps, the wire size for that line and its neutral must be coordinated
for 25 amps. The wire size must not be sized for anything lower than
25 amps.
Size of Wiring Downstream of the AC Output Breaker
The wiring
used between the AC output breaker and your loads must be sized to match
the output breaker.
Table 2
AC Wire Size In and Out of the Inverter/Chargers
MODELS
3012 / 3024
2012 / 2024
Split phase
Dual input
Breaker Size
Used
30 amps per line
30 amps per line
30 amps
Wire Size
No. 10 AWG
No. 6 AWG
No. 10 AWG
Color
Coding
L1
: black:
N
: white
L2
: red
Gnd
: green
L1
: red or black
N
: white
L2
: red or black
Gnd
: green
L
: red or black
N
: white
G
: green
Freedom SW 3K2K InvChg Install Guide.book Page 14 Wednesday, October 12, 2011 4:40 PM
