Siemens GM-SG - Page 27

Electrical
Connections
For
illustration
only
shown
with
3
bars
in
phase
A
and
2
in
phase
B
and
1
in
phase
C
Illustration
depicts
arrangement
with
standard
molded
glass
bus
support
.
Molded
Glass
Polyester
Support
!
=
f
=
j
Insulation
Boot
Typical
Rating
(
4000
A
)
+
+
+
+
A A
r
=
1
3
r
~
7
p
~
i
+
+
(
3000
A
)
I
B B
3
GT
I
.
7
ii
^
1
(
1200
A
or
2000
A
)
C
l
i
C
i
+
+
,
I
—
fun
Side
View
Main
Bus
Bar
Rear
View
Figure
18
.
Main
Bus
Joints
-
Auxiliary
Section
Connection
to
top compartment
shown dashed
11
Spacer
if
no
breaker
in
upper
cell
3
:
3
:
3
5
0
3 3
1
3
e
-
\
Breaker Riser
(
Typ
.
)
Main Riser
(
Typ
.
)
One
Main
Bus
Bar
One
1
/
4
x
4
Copper
or
One
3
/
8
x
6
Copper
One
Main
Bus
Bar
One
3
/
8
x
6
Copper
Two
Main
Bus Bars
Two
3
/
8
x
6
Copper
Three Main
Bus Bars
Three
3
/
8
x
6
Copper
Back
of
Unit
Front
of
Unit
Figure
19
.
Main
Bus
Joints
Connection
Configuration
25
Courtesy of NationalSwitchgear.com