Eaton Cutter-Hammer SPB-100 - Breaker Position Control; Drawout Interlocks; Operation Check Procedure

I
.
B
.
29
-
801
C
Page
8
points
.
There
are
four
terminal
blocks
of
twelve
contacts
each
:
“
A
,
”
“
B
,
”
“
C
,
”
and
“
D
”
(
Figure
2
-
5
)
.
The
secondary
contacts
consist
of
a
moving
assembly
mounted
on
to
the
guide
track
of
the
cassette
and
a
fixed
assembly
mounted
onto
the
movable mechanism
of
the
breaker
.
The
fixed
and
moving
secondary
contacts
are
self
-
aligning
.
Every
cassette
comes
standard
with
“
C
”
and
“
D
”
sec
-
ondary
contacts
.
Additional
kits
may
be ordered
for
“
A
”
and
“
B
”
secondary
contacts
.
WARNING
A
CIRCUIT
BREAKER
SHOULD
NOT
BE
INSERTED
WITH
THE
SHIPPING
STRAPS
IN
PLACE
.
A
SUIT
-
ABLY
SIZED
DEAD
FRONT
SHIELD
MUST
BE
INSTALLED
TO
PREVENT
ENTRY
INTO
THE BREAK
-
ER
COMPARTMENT
,
WHICH
,
IF
NOT
INSTALLED
,
COULD
RESULT
IN DEATH
OR
SERIOUS
INJURY
(
SECTION
2
-
5.6
)
.
12
SPBRSEC
-
12
point
right
hand
contact
kit
for
“
A
”
or
“
B
”
secondary
contacts
.
Proceed
as
follows
:
•
Insure
position
indicator
on
movable mechanism
is
in
“
WITHDRAW
’
location
.
•
Extend
guide
track
rails
of
cassette
.
•
Raise
breaker
to
height just
above
the
guide
track
rails
•
Lower breaker
so
that
the
wheels
of
the
movable
mechanism
sit
on
the
rails
on
both
sides
.
•
Push
breaker
into
cassette
.
24
SPBRSEC
-
24
point
right
hand
contact
kit
for
“
A
”
and
“
B
”
secondary
contacts
.
2
-
5.5
OPERATION
CHECK
Proceed
as
follows
:
Insure
wiring
is clear
of
all
obstructions
.
2
-
5.2
BREAKER
POSITION
•
Rack
the
breaker
to
“
DISCONNECTED
”
position
.
Visually
verify
that the
secondary
contacts
are
apart
.
Insure
tab
falls
into slot
of
indicator
wheel
on
right
hand
side
of
movable
mechanism
(
Figure
2
-
6
)
.
The drawout
mechanism
has
four
positions
.
They
are
achieved
by
lifting
the
padlock
latch
and
inserting
a
com
-
mercially
available
3
/
8
inch
socket
and ratchet
.
Clock
-
wise
motion
moves
the breaker
towards
the
“
CONNECT
-
ED
”
position
.
Counterclockwise
motion
moves
the
breaker
towards
the
“
WITHDRAW
”
position
(
Figure
2
-
5
)
.
•
Rack
the
breaker
to
“
TEST
”
position
.
Insure tab
falls
into slot
of
indicator
wheel
.
•
Visually
verify
that the
secondary
contacts
are
con
-
nected
.
Check
electrical
continuity by
energizing
the
control
circuit and
operating
the
breaker
.
•
Rack
the breaker
to
the
“
CONNECTED
”
position
.
Visually
verify
that
secondary
contacts
remain
con
-
nected
.
2
-
5.3
DRAWOUT
INTERLOCKS
The
breaker
is
mechanically
interlocked
to
the
drawout
mechanism
to
insure
that the breaker
is
always
open
when
connecting
or
disconnecting
it
from
the
line
and
load
stabs
.
Lifting
the
padlock
latch
in
an
attempt
to
rack the
breaker
in
or
out
while
the breaker
contacts
are
closed
will
result
in
the breaker
tripping
to
the
open
position
.
•
Rack
the breaker
to
“
DISCONNECTED
”
position
.
Visually
verify
that
secondary
contacts
are
apart
.
The
breaker
will
only
close
in
the
“
DISCONNECTED
,
”
“
TEST
,
”
AND
“
CONNECTED
”
positions
.
It
will
NOT
CLOSE
in
the
“
WITHDRAW
”
position
.
2
-
5.6
DEADFRONT COVER FOR THROUGH
THE
DOOR
DRAWOUTS
To
protect
the
worm
gear
of
the
movable
mechanism
,
there
is
an
interlock
bar
on
the
right
hand
side
of
the
cassette
that
prevents
racking
in
of
the
breaker
unless
fully
inserted
.
Shipping
straps
on
through
the
door
drawout
must
be
replaced
with
a
dead
front
cover
.
The
dead
front
cover
is
to
be
sized
so
that
when
the
breaker
is
installed
,
it
is
not
possible
to
gain
entry
into
the
breaker
compartment
.
2
-
5.4
SECONDARY
CONTACTS
To
cutout
the
front
cover
for
through
the door
drawouts
,
refer
to
appropriate
dimensional
information
provided
.
Secondary
contacts
may
be
mounted
on
the
left
or
right
hand
side
of
the
breaker
to
a
maximum
of
48
contact
E
:
T
'
N
Effective
7
/
00
Courtesy of NationalSwitchgear.com