Installation
and
Operation
Manual
(Rev
A)
PVI
50
‐
100KW
Series
Inverters
DOCR
‐
070233
Page
17
of
92
4.3
DC
Grounding
Connections
DC
grounding
connection
locations,
connection
quantity,
conductor
range,
and
terminal
torque
requirements
are
shown
below.
Fig.
4.2
DC
Ground
Connection
(600A
DC
Disconnect
Switch
w/
DC
Breakers
Shown)
DC
Disconnect
Switch
Type*
DC
Ground
Connection
Max
Number
of
Connections
Conductor
Range
Torque
400A
Ground
Bar
4
14
‐
1/0
AWG
40
in
‐
lbs
Ground
Lug
1
6AWG
‐
250kcmil
275
in
‐
lbs
600A
Ground
Bar
5
14
‐
6
AWG
40
in
‐
lbs
Ground
Lug
1
6AWG
‐
250kcmil
275
in
‐
lbs
*See
Table
4.6
to
determine
the
DC
disconnect
switch
type
by
inverter
model.
Table
4.2
–
DC
Ground
Conductor
Sizes
&
Torques
DC
Ground
Lug
DC
Ground
Bar