GE AK-50 Series - Power Supply Replacement; Sensor Coils (AK-3-50) Replacement

Low
Voltage
Power
Circuit
Breakers
GEK
-
7303
AK
-
3
-
50
/
75
/
100
POWER
SENSOR
TRIP
CABLING
OI
32
C
90
/
S
5
.
Replace
in
reverse
order
.
6
.
Check
positive
trip
to
obtain
approx
.
1
/
32
"
overtravel
after
armature
is
moved
sufficiently
to
trip
the
breaker
.
Power
Supply
(
Fig
.
34
)
1
.
Remove
trip
solenoid
wires
from
the
term
-
inal
board
on
Power
Supply
.
2
.
Remove
three
bolts
holding
mounting
brack
-
et
to
mechanism
frame
.
L
r
"
i
r
r
POWER
SENSOR
l
UNIT
0
I
84
L
0373
G
-
<
)
POWER
SUPPLY
UNIT
OI
2
IC
752
I
G
-
l
BACK
FRAME
MA
6
NETIC
SENSORS
i
i
i
i
i
I
I
LEFT
POLE
uf
I
I
p
t
*
'
M
I
1
»
I
CENTER
iB
t
POLE
1
I
I
f
*
I
I
'
R
l
f
*
i
COMMON
NEGATIVE
RIGHT
POLE
*
t
-
<
+
•
T
4
20
V
.
(
+
)
O
.
C
.
REF
.
<
4
—
TO
SCR
ANOOE
t
-
w
TEST
I
*
+
I N
I
*
T
8
*
I
I
TEST
TB
L
I
I
Remove
wiring
cleats
4
.
Remove
disconnect
plug
by
alternately
loosening
two
retaining
screws
.
5
.
Remove
Power
Supply
Unit
with
control
wiring
.
3
,
i
-
*
4
-
3
WIRE
|
A
I
;
6
R
0
UND
,
1
SENSOR
IB
|
:
4
W I R E
A
.
1
OlSBBZ
43
^
|
c
|
:
it
:
j
t
i
T
"
t
3
WEL
0
R
'
V
<
4
It
*
i
I
I
i
i
I
l
I
SURGE
SUPPRESSORS
I
‘
F
I
54
«
*
0
i
i
“
I
hi
i
i
I
it
<
4
i
I
i
D
1
0
I
<
*
<
T
\
POWER
SENSOR
IB
I
=
-
>
,
.
OVERCURRENT
>
[
]
jH
I
6
.
Reassemble
in
reverse
order
.
-
i
H
1
t
T
i
I
I
E
!
SENSOR
Coils
(
AK
-
3
-
50
)
Only
(
Fig
.
32
)
1
.
Disconnect
plug
between
the
Power
Supply
Unit
and
the
sensor
coils
and
remove
tapped
screw
holding
female
plug
to
breaker
mechanism
frame
.
IE
<
4
-
+
!
i
lc
!
Tl
IK
=
K
*
I
I
V
K
<
4
I
I
I
*
I
I
l
TEST
I
I
i
I
P
!
I
U
TEST
<
4
i
i
J
J
L
L
J
2
.
Separate
front
frame
from
back
frame
as
described
under
SEPARATION
OF
FRONT
&
REAR
FRAMES
.
Fig
.
37
(
0133
C
9018
)
Power
Sensor
Cabling
a
-
3
s
)
J
Fig
.
38
.
(
7612
-
6
-
2
)
Ground
Sensor
Coil
(
Remotely
Located
)
1
.
Terminal
2
.
External
Ground
Sensor
Coil
3
.
White
Polarity
Dot
Fig
.
39
(
8039962
)
Power
Sensor
Kit
37
Courtesy of NationalSwitchgear.com