ABB 5HK Series User Manual

IB
6.2
.
1.7
D
Page
5
Aim
MIPIP
ASEA
BROWN BOVERI
8
.
Lift
front
sheet
in
place
so
that
it
looks
over
the
arc
tie bar
.
9
.
Secure
the
barrier
front
sheet
in
place
with
the
two
lower
front
sheet
screws
.
CAUTION
CAUTION CAUTION
CAUTION
ON
5
HK
350
,
FOR
OLDER
UNMARKED
BARRIERS
,
INSURE
THAT
THE
FLUX
SHUNT
PAD
IS
INSTALLED
BETWEEN
POLES
.
3.10
INSTALLING
CIRCUIT
BREAKER
INTO COM
-
PARTMENT
(
See
Figures
2
and
3
)
NOTE
:
CLOCKWISE
ROTATION
of
racking
crank
for
inserting
breaker
.
COUNTERCLOCKWISE
rotation
of
racking
crank
for
removal
of
the breaker
1
.
Turn
motor
disconnect
switch
(
if
supplied
) (
1
,
Figure
2
)
to
“
OFF
”
position
.
2
.
Engage
racking
crank
(
4
,
Figure
3
)
and
push
racking
unlocking
lever
(
3
)
to
left
,
then
rotate
racking
crankcounter
-
clockwise
only
until
resistance
to
motion is
felt
.
(
DO NOT
FORCE
.
)
3
.
Engage
f
ifth
wheel
with
hole
guide
(
5
,
Figure
2
)
and
push
circuit breaker
into
compartment
until
stopped
.
(
If
closing
springs
were
left
in
charged
condition
,
they
will
automati
-
cally discharge
.
)
4
.
Engage
racking
crank
and
rotate
clockwise
until
racking
mechanism
automatically
stops
at
“
DISCONNECT
”
posi
-
tion
.
(
Breaker is
now
held
captive
in
compartment
.
)
5
.
To
rack
circuit
breaker
to
‘
TEST
”
position
,
push
racking
unlocking
lever
(
3
,
Figure
3
)
to
left
,
rotate
racking
crank
approximately
1
/
4
turn
clockwise
,
then release
unlocking
lever
.
Continue
cranking
until
racking
mechanism
auto
-
matically
stops
at
“
TEST
’
position
.
6
.
With
the circuit
breaker racked
to
“
TEST
”
position
,
check
for
proper
operation
by
operating
all
possible
means
of
Fig
.
2
—
Front View
of
Control
Panel
3.8
INSTALLING
ARC
CHUTES
(
See
Figure
I
)
Position
arc
chute
(
I
)
in
tilted
position
,
squarely
down into its
rear
pivot
guide
slots and
fingers (
avoid
bumping
and
chipping
of
all
moldings
)
,
then
lower
slowly
into
position
.
CAUTION
CAUTION CAUTION
CAUTION
BE
SURE
RETURN
CONNECTION
IS CLEAR
AND
NOT
CATCH
ON
THE
ARC CHUTE
.
Securely
fasten
return
connection
(
5
)
by
its
nut
(
6
)
Also
,
on
5
HK
350
breakers
the
front
arc
chute
support
leg
must
be
secured
to
its hold
down
block
.
3.9
INSTALLING
INTERPHASE
BARRIER
1
.
For
5
HK
75
,
150
and
250
,
lift
barrier and
slide
it
approxi
-
mately
halfway
on
the breaker
.
2
.
After
aligning
the
vertical
sheets
of
the barrier
properly
between the lead
support
moldings
and inside
the
clips
on
the outside
moldings
,
slide the barrier
as
far
to
the
rear as
possible
.
3
.
Lift
the
barrier
slightly by
its handle
at
the
lower
front
(
Figure
2
)
to
permit
the
rear
brace
of
the barrier
to
drop
down
behind
the
arc
chutes
.
4
.
Push
firmly
down
and back
on
the
barrier handle
to
properly
position
the
interphase
barrier
in
place
.
5
.
Secure
the barrier
in
place
with
the
two
lower
front
sheet
screws
.
6
.
For the
5
HK
350
,
slide
the
right
and
left
interphase
barriers
,
as
marked
,
in
place
between
the
lead
support
moldings
and inside
of
the
clips
on
the
outside
moldings
,
and
pivot
the
rear
brace
downward
hehind the
arc
chutes
.
7
.
Install the
arc
chute
tie bar
at
the
upper
front
on
the
arc
chutes
.
Fig
.
3
-
Method
of
Racking
Circuit
Breaker
Courtesy of NationalSwitchgear.com

ABB 5HK Series Specifications

General

Brand	ABB
Model	5HK Series
Category	Circuit breakers
Language	English