Installation
and
Operation
Manual
(Rev
A)
PVI
50
‐
100KW
Series
Inverters
DOCR
‐
070233
Page
23
of
92
AC
DISCONNECT
SWITCH
TYPE
NO.
OF
NEUTRAL
CONDUCTORS
WIRE
GAUGE
TERMINAL
TORQUE
200A
1
6AWG
‐
250kcmil
275
in
‐
lbs
400A
3
6AWG
‐
250kcmil
275
in
‐
lbs
1
or
2
1/0AWG
‐
750kcmil
500
in
‐
lbs
1/0AWG
‐
300kcmil
*See
Tables
4.3
&
4.4
to
determine
the
AC
disconnect
switch
type
by
inverter
model.
Table
4.5
–
AC
Neutral
Conductor
Sizes
&
Torques
4.5
AC
Ground
Fault
Detection
The
PVI
series
of
inverters
are
not
equipped
with
AC
ground
fault
protection.
When
AC
ground
fault
protection
is
used
on
the
onsite
electrical
service,
determine
if
the
ground
fault
device
is
listed
to
be
backfed.
The
inverter
AC
output
should
be
connected
on
the
supply
side
of
the
device
unless
the
device
is
specifically
listed
for
a
backfeed
application,
then
the
inverter
may
be
installed
on
either
the
load
or
supply
side
of
the
device.
Always
consult
the
AC
ground
fault
manufacturer
for
guidance
on
backfeeding
their
devices
in
a
Code
compliant
manner.