GE AK-50 User Manual

Low
-
voltage
Power
Circuit
Breakers
GEI
-
74600
f
BASIC
BREAKER
COMPONENTS
1
DISASSEMBLY
—
AK AND AKF
CENTER
POLE
(
Fig
.
4
)
REPLACEMENT
—
AKF
BREAKERS
ARC
QUENCHERS
(
Fig
*
4
and
5
)
The
center
-
pole
arc
quencher
of
these breakers is similar
to
the
arc
The
following
instructions
apply
to
quenchers
of
the
standard
breakers and both the
Type
AK
and
AKF
breaker
is
replaced
in
a
similar
manner
,
except
center
poles
,
that
the breaker
must
be
closed
.
With
The
arc
quenchers
should
be
in
-
spected
at
the
regular
inspection
period
.
If
the barriers
are
cracked
or
eroded
to
one
-
half
their
original
thickness
,
they
should be
replaced
.
1
.
Remove
arc
quenchers
(
see
the breaker
closed
the
center
-
pole
contacts
are
open
and the
arc
quencher
REPLACEMENT
)
,
can
be
removed
.
r
REPLACEMENT
—
AK
BREAKERS
2
.
Remove
screws
holding
spacer
block
(
9
)
.
Replace
the
outer
-
pole
arc
quen
-
chers
of
the
Type
AKF
breaker
as
follows
;
1
.
Be
sure
the breaker is
open
.
3
.
Remove
spacer
block
,
steel
back
plate
(
8
)
,
and
compound
support
(
7
)
.
2
Remove
the channel
-
shaped
re
-
taining
bar
by
removing
two
screws
and
two
nuts
.
4
.
Rock muffler
(
6
)
slightly
and
re
-
move
.
The
inner
barriers
(
5
)
can
now
2
.
Remove
the
two
channel
-
shaped
be removed
for
inspection
,
retaining
bars which bear
against
the
front of
the
arc
quencher
by
removing
four
screws
,
two
on
each
side
.
1
.
Be
sure
the breaker
is
open
.
3
.
Lift
the
quenchers
clear
of
the
movable
arcing
contacts
.
5
.
Remove
nut
and withdraw
stud
(
1
)
.
6
.
Remove
cap
(
2
)
.
The
side
(
3
)
and
pocket
(
4
)
barriers
should
be
free
.
4
.
During
replacement
be
careful
not to
overtighten
the
screws
which
se
-
cure
the channel
-
shaped
retainingbar
.
Overtightening
the
screws
will bow
the
bar and
leave the
center
arc
quen
-
cher
loose
.
3
.
Lift
the
arc
quenchers
clear
of
the movable
arcing
contacts
.
7
.
Reassemble
and
replace
the
arc
quencher
in
the
reverse
order
.
Tighten
the
fastenings
after
replacement
.
4
.
Replace
arc
quenchers
and
in
-
sert
the
four
screws
holding
the
re
-
taining
bars
in
position
.
c
©
CO
©
CO
-
A
*
-
V
*
V
*
>
.
r
v
.
.
it
-
Y
~
.
»
i
.
I
2
3
4
5
6
7
9
8
?
.
Compound
Support
8
.
Steel
Back Plate
9
.
Spacer
Block
4
.
Pocket
Barrier
5
.
Inner
Barrier
6
.
Muffler
1
.
Stud
2
.
Cap
3
.
Side
Barrier
W
Courtesy of NationalSwitchgear.com

GE AK-50 Specifications

General

Brand	GE
Model	AK-50
Category	Circuit breakers
Language	English