Siemens l-T-E MD6 Owner's manual

SIEMENS
l
-
T
-
E
Molded
Case
Circuit
Breakers
MD
&
ND
-
Frame
Information
and
Instruction
Guide
Courtesy of NationalSwitchgear.com

Courtesy of NationalSwitchgear.com

I
-
T
-
E
®
MD
and
ND
-
Frame
Circuit
Breakers
2
and
3
-
Pole
,
500
-
1200
Amperes
Types
MD
6
,
MXD
6
,
ND
6
,
NXD
6
,
HMD
6
,
HMXD
6
,
HND
6
,
HNXD
6
,
CMD
6
,
CND
6
,
MXD
6
-
ETI
,
CMD
6
-
ETI
Table
of
Contents
Accessories
(
ContM
)
:
2
Important
Notices
Max
-
Flex
Flange
-
Mount
Handle
Operator
TELE
MAN
D
'
:
Electric
Motor
Operator
30
-
34
3
,
4
General
Information
5
36
-
37
Dimensional
Reference
Drawings
6
,
7
Connecting
Straps
38
Pressure
Wire
Connectors
Enclosures
Compression
Connectors
8
,
9
39
Door
Latch
Mechanism
40
,
41
Trip
Unit
Assembly
10
,
11
12
Operating
Characteristics
:
Handle
Blocking
Device
Time
Current
Curves
13
Padlocking
Device
42
,
43
Let
-
Thru
Curves
14
-
17
44
,
45
Plug
-
In
Adapters
Ordering
Information
:
Connecting
Studs
18
-
20
Circuit
Breaker
Catalog
Numbers
21
-
24
Mechanical
Interlock
46
-
49
Internal
Accessory
Catalog
Numbers
50
Accessories
:
Additional
Accessories
Catalog
Numbers
Shunt
Trip
,
Undervoltage
Trip
,
Auxiliary
Switch
and
Bell
Alarm
Switch
Installation
51
25
,
26
Miscellaneous
:
Shunt
Trip
,
Undervoftage
Trip
,
Auxiliary
Switch
and
Bell
Alarm
Switch
Electrical
and
Mechanical
Check
UL
Listings
and
File
Numbers
52
27
Industry
Specifications
52
28
,
29
Rotary
Handle
Operator
These
instructions
do
not
purport
to
cover
all
details
or
variations
in
equipment
,
nor
to
provide
for
every
possible
con
-
tingency
to
be
met
in
connection
with
installation
,
operation
or
maintenance
.
Should
further
information
be
desired
or
should
particular
problems
arise
which
are
not
covered
sufficiently
for
the
purchaser
’
s
purposes
,
the
matter
should
be
referred
to
the
local
Siemens
sales
office
.
The
contents
of
this
instruction
manual
shall
not
become
part
of
or
modify
any
prior
or
existing
agreement
,
commitment
or
relationship
.
The
sales
contract
contains
the
entire
obligation
of
Siemens
.
The
warranty
contained
in
the
contract
between
the
parties
is
the
sole
warranty
of
Siemens
.
Any
statements
continued
herein
do
not
create
new
warranties
or
modify
the
existing
warranty
.
1
Courtesy of NationalSwitchgear.com

i
I
.
*
nil
®
!
Information
and
Instructions
General
Information
mSS
General
MD
and
ND
-
Frame
Sentron
Series
circuit
breakers
,
as
shown
on
page
5
,
are
for
use
in
individual
enclosures
,
switch
-
boards
,
and
power
and
distribution
panel
boards
.
They
are
available
as
thermal
magnetic
,
with
interchangeable
trip
units
(
types
MD
6
,
MXD
6
,
ND
6
,
NXD
6
-
standard
interruption
level
,
HMD
6
,
HMXD
6
,
HND
6
,
HNXD
6
-
high
interruption
level
,
and
CMD
6
,
CND
6
current
limiting
)
,
instantaneous
magnetic
trip
only
(
motor
circuit
protectors
-
types
MXD
6
-
ETI
and
CMD
6
-
ETI
)
and
molded
case
switches
(
types
MXD
6
,
NXD
6
,
CMD
6
,
CND
6
)
.
CMD
6
,
CND
6
type
Sentron
Series
circuit
breakers
combine
thermal
magnetic
construction
for
overload
protection
in
con
-
junction
with
the
MD
and
ND
-
Frame
’
s
standard
“
blow
-
apart
”
contacts
.
This
arrangement
provides
for
current
limiting
pro
-
tection
under
high
fault
interrupting
conditions
as
outlined
in
the
National
Electrical
Code
®
,
Article
240
-
11
®
and
UL
489
®
standards
.
CMD
6
,
CND
6
type
circuit
breakers
are
fuseless
and
therefore
eliminate
the
requirement
of
locating
and
replac
-
ing
blown
fuses
should
a
high
current
fault
occur
.
The
common
trip
feature
of
the
circuit
breaker
is
completely
retained
so
that
all
poles
of
the
circuit
breaker
open
when
caused
to
trip
due
to
an
overload
or
short
circuit
.
Pressure
wire
connectors
,
suitable
for
use
with
aluminum
or
copper
wire
are
available
for
all
MD
and
ND
-
Frame
circuit
breakers
.
Rear
connection
studs
or
plug
-
in
connector
assem
-
blies
are
also
available
(
2
and
3
-
pole
)
.
The
latter
mounting
arrangement
permits
the
removal
of
the
circuit
breaker
from
its
leads
without
physically
coming
in
contact
with
either
the
line
or
load
terminals
.
UL
listed
special
features
such
as
a
shunt
trip
,
auxiliary
and
alarm
switches
and
undervoltage
trip
devices
are
available
for
internal
mounting
.
The
installation
and
or
removal
of
theses
devices
is
to
be
accomplished
by
qualified
personnel
only
.
Information
concerning
them
can
be
found
on
pages
25
-
27
.
Thermal
Magnetic
MD
6
,
MXD
6
,
ND
6
,
NXD
6
,
HMD
6
,
HMXD
6
,
HND
6
,
HNXD
6
,
CMD
6
,
and
CND
6
type
circuit
breakers
provide
complete
overload
and
short
circuit
protection
by
use
of
a
time
delay
thermal
trip
element
and
an
instantaneous
magnetic
trip
device
.
Nominal
instantaneous
trip
values
are
externally
adjustable
with
8
trip
points
as
shown
below
.
1
I
*
«
Circuit
breakers
are
calibrated
at
the
factory
,
under
controlled
temperature
conditions
for
applications
in
a
40
°
C
(
104
°
F
)
ambient
.
The
cover
on
the
trip
unit
is
sealed
to
prevent
access
to
the
trip
elements
.
Alterations
of
the
calibration
of
these
elements
should
not
be
attempted
.
Removal
of
the
seals
will
void
the
UL
listing
for
that
specific
trip
unit
.
Catalog
numbers
for
order
-
ing
and
informational
purposes
can
be
found
on
pages
44
-
46
.
Instantaneous
Trip
ETI
motor
circuit
interrupters
(
adjustable
instantaneous
magnetic
trip
only
)
are
designed
for
use
in
welding
circuits
,
motor
circuits
and
combination
starters
where
short
circuit
protection
only
is
required
.
When
used
in
combination
starters
,
they
serve
in
conjunction
with
motor
protective
relays
to
offer
complete
protection
.
The
relays
guard
against
motor
overloads
;
the
circuit
breaker
provides
short
circuit
protection
.
ETI
is
available
for
MD
-
Frame
only
,
breaker
types
MXD
6
-
ETI
and
CMD
6
-
ETI
.
The
available
instantaneous
adjustments
are
as
follows
.
*
Breaker
Ampere
Rating
ETI
Trip
Settings
Motor
Full
Load
Amperes
Adjustment
Amperes
231
-
264
264
-
292
292
-
330
Low
3000
2
3430
3
3860
330
-
362
362
-
395
395
-
428
4
4280
4710
5140
800
5
Low
6
428
-
462
462
-
490
7
5570
Nominal
Instantaneous
Values
High
6000
Ampere
Rating
Low
2
3
4
308
-
352
352
-
442
442
-
447
Low
4000
4570
5740
500
-
600
700
-
800
900
-
1200
3430
4570
5715
3860
3000
4000
5000
4280
5710
7145
2
5740
3
6430
447
-
483
483
-
527
527
-
571
4
5810
800
5
6280
Stand
.
Nominal
Instantaneous
Values
Ampere
Rating
6
6850
6
7
High
5
571
-
616
616
-
660
7
7420
8000
500
-
600
700
-
800
900
-
1200
5140
4710
6280
7860
5570
6000
High
6850
8575
7420
8000
9290
10
,
000
385
-
440
440
-
495
495
-
550
Low
5000
5715
6430
2
©
National
Electrical
Code
(
240
-
11
)
“
A
current
limiting
overcurrent
protective
device
,
which
,
when
interrupting
currents
in
its
current
limiting
range
,
will
reduce
the
current
flowing
in
the
faulted
circuit
to
a
magnitude
substantially
less
than
that
obtainable
in
the
same
circuit
,
if
the
device
were
replaced
with
a
solid
conductor
having
comparable
impedance
.
”
©
Underwriters
Laboratories
(
UL
489
,
Par
.
2.5
)
“
A
circuit
breaker
that
does
not
employ
a
fusible
element
and
that
when
operating
within
its
current
limiting
range
,
limits
the
let
-
through
l
2
t
to
a
value
less
than
the
l
2
t
of
a
V
2
cycle
wave
of
the
symmetrical
prospective
current
.
”
3
I
550
-
605
605
-
660
660
-
715
4
7145
7860
8575
800
5
High
6
715
-
800
7
9290
High
10000
3
Courtesy of NationalSwitchgear.com

Information
and Instructions
Operation
and
Maintenance
Circuit
Breaker
Operation
With
the mechanism
latched and the
contacts
open
,
the
oper
-
ating
handle
will
be
in
the
OFF
position
.
Moving
the
handle
to
the
ON
position
closes the
contacts
and establishes
a
circuit
through
the
breaker
.
Under
overload
or
short circuit conditions
sufficient
to
automatically
trip
or
open
the breaker
,
the
oper
-
ating
handle
moves
to
a
position
between
ON
and
OFF
To
relatch the circuit breaker
after
automatic
operation
,
move
the
operating
handle
to
the
extreme
OFF
position
.
The circuit
breaker is
now
ready
for
reclosing
.
The
overcenter
toggle
mechanism
is
trip
free
of
the
operat
-
ing
handle
.
The circuit breaker
,
therefore
,
cannot
be held
closed
by
means
of
the handle
should
a
tripping
condition
exist
.
After
automatic
operation
,
the handle
assumes an
inter
-
mediate
position
between
ON
and
OFF
,
displaying
a
clear
indication
of
tripping
.
Molded
Case
Switch
A
molded
case
switch
is
available
in
the
MXD
6
,
CMD
6
,
NXD
6
and
CND
6
type
circuit breakers
.
This device
employs
the
same
operating
mechanism
as
the thermal
magnetic
and
magnetic only
units
.
A
preset
instantaneous
function
has been
factory
installed
to
allow the switch
to
trip
and
protect
itself
against
high
fault
conditions
.
No overload
or
low
fault
protec
-
tion is
provided
.
This
protection
must
be
supplied
by
separate
overcurrent
devices
.
Catalog
information
is located
on
pages
44
and
46
.
Interrupting Ratings
-
Symmetrical
RMS
Amperes
(
kA
)
Based
on
UL
489
Standards
Interrupting ratings
of
the
MD
and
ND
-
Frame
circuit
breakers
are
based
on
circuit and
test
conditions outlined
in
UL
489
.
RMS
Symmetrical
Amperes
(
kA
)
lie
Am
®
ULA
.
I
.
R
.
Breaker
Type
Maintenance
Experience
has shown that
properly
applied
molded
case
cir
-
cuit breakers
normally
do
not
require
maintenance
.
However
,
some
industrial
users
may
choose
to
establish
an
inspection
and
maintenance
procedure
to
be
carried
out
on a
regular
basis
.
For detailed
information
,
consult
applicable
NEMA
pub
-
lications
or
your
local
Siemens
sales
office
.
Volt
|
AC
(
50
-
60
Hz
)
Volts
AC
Volts
DC
380
/
415
500
(
D
220
/
240
240
480
600 250
MD
6
,
MXD
6
,
ND
6
,
NDX
6
50
(
3
-
P
)
30
(
2
-
P
)
25
(
3
-
P
)
65
(
3
-
P
)
65 50 25
HMD
6
,
HMXD
6
,
HND
6
,
HNXD
6
100
(
3
-
P
)
65
(
3
-
P
)
30
(
2
-
P
)
50
(
3
-
P
)
100
65 50
CMD
6
,
CND
6
(
D
30
(
2
-
P
)
50
(
3
-
P
)
200
(
3
-
P
)
100
(
3
-
P
)
65
100 200
SPECIAL
NOTE
:
CMD
6
and
CND
6
circuit
breakers
are
not
UL
listed
as
interchangeable
trips
—
DO
NOT
REMOVE
TRIP
UNIT
and
replace
with
another Removal
of
trip
unit
voids
UL
listing
.
®
Meets
requirements
of IEC
157
-
1
(
P
1
)
.
(
D
For
500
V
dc
applications
the
customer
’
s
power
supply
and load
must
be
wired
as
shown
(
Figure
1
)
.
(
3
)
CMD
6
and
CND
6
type
circuit
breakers
are
current
limiting
at
240
V
ac
480
V
ac
.
+
Q
Q
NOTE
:
Present UL
Standard
489
allows
the
following
toler
-
ances
for
instantaneous
adjustment
response
.
;
Thermal
-
Magnetic
Breakers
Instantaneous
Adjustment
Low
:
±
25
%
±
20
%
instantaneous
Only
Breakers
:
H
Each
Adjustment
+
30
%
1
High
Breaker
Outline
LOAD
Wiring Diagram
Figure
1
4
Courtesy of NationalSwitchgear.com

I
-
T
-
E
MD
and
ND
-
Frame
Outline
Drawings
©
2
and
3
-
Pole
©
it
.
75
1
6.00
*
9.0
Removable
Terminal
Shield
r
1
i
.
19
r
—
Ui
i
.
44
Dia
.
Mounting
Holes
.
69
Dia
.
Counterbore
,
4
Holes
See
Section
A
Below
3.0
3.0
A
.
69
I
I
I
I
1
I
I
1
,
I
i
z
.
63
Thick
,
/
-
C
.
3
Taper
—
—
(
§
)
1.47
m
©
i
-
9.9
R
«
*
-
A
©
©
©
|
©©©
14.25
h
3.22
21.8
16.0
8
°
TRIPPED
.
435
PUSH
TO
TRIP
Button
_
4.45
T
11
16
°
30
OFF
’
'
.
31
sq
.
a
*
.
67
x
.
3
Wireway
5.04
R
*
U
B
1
7.16
.
34
r
5.64
I
T
4.71
4.40
3.44
A
(
g
)
(
§
)
I
t
H
’
'
t
T
4
l
—
"
1
i
Magnetic
I
.
54
.
88
I
Trip
Typ
29
TyP
yp
Max
.
Typ
I
k
I
r
_
~
Adjustment
|
|
i
Terminal
•
Shield
.
69
Removable
4.0
i
I
I
i
;
i
(
3.52
—
H
5
-
J
L
-
2.5
^
|
J
Typ
Typ
1.5
h
«
—
3.0
3.0
B
Wire
Connector
Shield
Typ
Each
End
Front
View
Side
View
Handle
Operating
Forces
3.60
Operation
Lb
.
wo
/
Ext
.
Lb
.
w
/
Ext
.
-
2.13
OFF
to
ON
ON
to
OFF
TRIPPED
to
RESET
75
40
i
.
06
85
46
5
°
Taper
Typ
130
70
1.50
Ref
I
©
All
drawing
dimensions
are
shown
in
inches
.
©
Two
and
3
-
pole
breakers
are
the
same
physical
size
.
Current
carrying
parts
are
omitted
from
the
center
in
2
-
pole
breakers
.
1
\
I
8.25
Ref
3
/
B
-
16
Unc
—
Trip
Unit
2.10
o
0
°
o
Oo
|
«
1.28
«
j
Q
Q
0
i
*
2
I
r
1.94
.
61
.
54
Typ
l
4
2
>
©
>
2
.
(
i
ft
Ti
i
3.0
m
3.0
—
2
$
3
I
End
View
T
.
58
Ref
2.16
Detail
A
Detail
B
5
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Pressure
Wire
Connectors
E
.
Attach
power
cables
to
connectors
and
tighten
set
screws
(
5
)
(
Figure
1
)
to
specifications
per
Table
1
.
NOTE
:
Cables
must
extend
straight
for
at
least
4
inches
from
face
of
connector
to
clear
shield
.
F
.
Mount
removable
terminal
shield
(
6
)(
Figure
2
)
to
end
of
circuit
breaker
.
Shield
should
be
flush
with
end
of
circuit
breaker
.
G
.
Re
-
assemble
terminal
shield
.
NOTE
:
When
terminal
cover
is
properly
installed
,
wire
con
-
nector
shield
should
be
held
securely
.
NOTE
:
End
barrier
NDTS
is
supplied
with
kits
2
TA
4
P
8500
,
2
TA
4
N
8500
,
3
TA
4
P
8500
,
3
TA
4
N
8500
,
2
TA
3
P
8750
,
3
TA
3
P
8750
,
2
TA
2
N
8750
,
3
TA
2
N
8750
.
Barrier
can
be
purchased
as
a
separate
item
for
use
with
other
terminal
connectors
.
A
DANGER
H
Hazardous
Voltage
.
Will
cause
severe
injury
or
death
.
Turn
off
and
lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
A
SAFETY
INSTRUCTIONS
General
NOTE
:
This
instruction
outlines
the
recommended
install
-
ation
procedures
for
TA
4
N
8500
,
TA
4
P
8500
,
TA
2
N
8750
and
TA
3
N
8750
.
A
.
Move
breaker
handle
to
OFF
position
,
or
depress
PUSH
TO
TRIP
button
.
Breaker
must
be
in
OFF
or
TRIPPED
po
-
sition
before
continuing
.
B
.
Remove
terminal
shield
(
1
)
(
Figure
2
)
(
two
#
6
-
32
screws
.
)
C
.
Mount
breaker
securely
.
See
circuit
breaker
instructions
for
proper
installation
procedures
.
D
.
Mount
pressure
wire
connectors
(
2
)
to
terminal
pads
(
3
)
with
mounting
screws
(
4
)
(
Figure
1
)
.
Recommended
tor
-
que
is
228
in
.
lb
.
NOTE
:
Steps
C
and
D
may
be
completed
in
any
convenient
order
.
Figure
2
Figure
1
<
1
6
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Pressure
Wire
Connectors
Table
1
-
Connector
Selection
Chart
Circuit
Breaker
Ampere
Rating
Connector
Wire
Range
Set
Screw
Torque
For
Use
With
Type
(
s
)
Connector
®
Catalog
Numbers
MD
6
,
MXD
6
,
SMD
6
HMD
6
,
HMXD
6
,
SHMD
6
,
CMD
6
,
SCMD
6
(
1
-
2
)
#
1
AWG
-
500
kcmil
(
Cu
/
AI
)
500
-
600
375
in
.
lb
.
TA
2
K
500
MD
6
,
MXD
6
,
SMD
6
HMD
6
,
HMXD
6
,
SHMD
6
,
CMD
6
,
SCMD
6
,
MD
6
-
ETI
,
CMD
6
-
ETI
(
1
-
3
)
#
1
AWG
-
500
kcmil
(
Cu
/
AI
)
700
-
800
375
in
.
lb
.
TA
3
K
500
ND
6
,
NXD
6
,
SND
6
HND
6
,
HNXD
6
,
SHND
6
,
CND
6
,
SCND
6
(
4
)
250
-
500
kcmil
(
Cu /
AI
)
800
-
1200
375
in
.
lb
.
TA 4 P
8500
®
ND
6
,
NXD
6
,
SND
6
HND
6
,
HNXD
6
,
SHND
6
,
CND
6
,
SCND
6
(
4
)
250
-
500
kcmil
(
Cu
/
AI
)
800
-
1200
375
in
.
lb
.
TA
4
N
8500
MD
6
,
MXD
6
,
SMD
6
HMD
6
,
HMXD
6
,
SHMD
6
,
CMD
6
,
SCMD
6
(
1
-
2
)
#
1
AWG
-
500
kcmil
(
Cu
)
500
-
600
375
in
.
lb
.
TC
2
K
500
MD
6
,
MXD
6
,
SMD
6
HMD
6
,
HMXD
6
,
SHMD
6
,
CMD
6
,
SCMD
6
(
1
-
3
)
#
1
AWG
-
350
kcmil
(
Cu
)
700
-
800
375
in
.
lb
.
TC
3
K
350
MD
6
,
MXD
6
,
SMD
6
HMD
6
,
HMXD
6
,
SHMD
6
,
CMD
6
,
SCMD
6
(
2
)
600
-
750
kcmil
(
Cu /
AI
)
700
-
800
375
in
.
lb
.
TA
2
N
8750
(
3
)
250
-
400
kcmil
(
Cu /
AI
)
(
3
)
500
-
700
kcmil
(
Cu /
AI
)
ND
6
,
NXD
6
,
SND
6
HND
6
,
HNXD
6
,
SHND
6
,
CND
6
,
SCND
6
700
-
1200
375
in
.
lb
.
TA
3
N
8750
Ik
(
D
Connectors
supplied
in
kits
only
.
(
D
All
connector
bodies
will
fit
on
all
MD
and
ND
-
Frame
circuit
breakers
regardless
of
trip
unit
ampere
rating
.
7
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Compression
Connectors
(
CCM
800
,
CCN
1200
)
F
.
Remove
cap
from
compression
connector
and
insert
cable
fully
into
barrel
(
1
)
(
Figure
1
)
of
connector
.
G
.
Insure
that
connector
tang
(
s
)
(
2
)
(
Figure
1
)
are
in
their
proper
orientation
prior
to
crimping
.
This
helps
avoid
twist
-
ing
of
cables
during
installation
.
A
DANGER
H
Hazardous
Voltage
.
Will
cause
severe
injury
or
death
.
Turn
off
and
lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
A
SAFETY
INSTRUCTIONS
General
NOTE
:
This
instruction
sheet
outlines
the
recommended
in
-
stallation
procedure
.
Use
of
lugs
may
result
in
reduced
wire
bending
space
.
The
installer
should
verify
that
adequate
wire
bending
space
is
still
provided
for
the
installation
,
in
accordance
with
applicable
codes
.
Figure
1
H
.
Select
an
appropriate
tool
and
die
combination
from
Table
1
and
make
the
required
number
of
crimps
within
the
bound
-
aries
stamped
on
the
connector
barrel
.
Refer
to
Figure
2
for
sequence
of
multiple
crimps
.
A
I
Mun
&
&
Second
Crimp
m
t
m
First
Crimp
I
viJSs
*
'
-
'
"
'
o
Compression
Connector
Kit
-
CCN
1200
Installation
of
Compression
Connector
A
.
Turn
off
power
supplying
device
before
installing
compres
-
sion
lugs
.
B
.
Remove
any
existing
wire
connectors
from
circuit
breaker
.
C
.
Install
circuit
breaker
.
D
.
Preform
cables
to
final
configuration
and
strip
insulation
back
113
/
ie
in
.
on
each
conductor
.
Use
an
appropriate
in
-
sulation
stripping
tool
to
avoid
damaging
the
conductor
(
Figure
1
)
.
E
.
Clean
aluminum
conductor
surfaces
thoroughly
with
a
wire
brush
or
other
suitable
means
,
to
remove
oxides
and
other
contaminants
from
the
conductor
.
NOTE
:
Copper
wires
and
the
compression
connector
should
not
be
cleaned
abrasively
.
Connector
Crimps
Figure
2
I
.
Remove
any
inhibitor
compound
expelled
during
the
crimping
operation
from
the
connector
body
and
the
cable
insulation
.
J
.
Slip
insulating
cover
over
connector
tang
and
then
over
connector
barrel
so
that
only
the
connector
tang
is
ex
-
posed
(
Figure
3
)
.
WARNING
:
Short
spacings
will
result
if
Step
J
is
not
followed
.
8
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Compression
Connectors
(
CCM
800
,
CCN
1200
)
r
Insulating
Cover
Figure
3
K
.
Position
connector
tang
on
top
of
the
circuit
breaker
termi
-
nal
pad
and
secure
with
3
/
s
-
16
x
11
/
2
in
.
socket
head
cap
screw
and
conical
spring
washer
.
Conical
spring
washer
is
to
be
installed
with
convex
side
of
washer
toward
under
-
side
of
screw
head
(
Figure
4
)
.
Torque
screw
to
228
in
.
lb
.
NOTE
:
When
using
this
kit
for
ampacities
less
than
1200
Aor
where
only
one
or
two
connectors
are
to
be
mounted
to
the
terminal
pad
,
insert
spacers
provided
in
kit
between
spring
washer
and
compression
lug
.
(
Figures
4
a
,
4
b
,
4
c
and
4
d
)
.
Connector
and
Spacer
Combinations
Figure
4
Catalog
Information
Catalog
Number
Compression
Connector
Kits
1
set
of
terminals
for
line
or
load
end
of
2
-
pole
MD
frame
circuit
breaker
CCM
800
K
2
CCM
800
K
3
1
set
of
terminals
for
line
or
load
end
of
3
-
pole
MD
frame
circuit
breaker
CCN
1200
K
2
1
set
of
terminals
for
line
or
load
end
of
2
-
pole
ND
frame
circuit
breaker
CCN
1200
K
3
1
set
of
terminals
for
line
or
load
end
of
3
-
pole
ND
frame
circuit
breaker
9
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Trip
Unit
D
.
Secure
trip
unit
to
frame
.
Tighten
six
5
/
i
6
-
18
socket
head
cap
screws
(
8
)
(
Figure
1
)
to
140
in
.
lb
.
E
.
Replace
load
cover
.
The
six
#
10
-
32
x
3
A
in
.
screws
must
be
installed
toward
the
line
side
of
the
circuit
breaker
.
The
two
#
10
-
32
x
1
%
in
.
screws
are
installed
on
the
load
end
.
Tighten
all
load
cover
screws
to
25
in
.
lb
.
Replace
handle
if
removed
;
note
tab
(
9
)
on
front
of
handle
must
be
toward
line
end
.
F
.
Check
operation
of
circuit
breaker
.
Reset
breaker
by
mov
-
ing
handle
toward
load
side
of
device
until
it
catches
.
Then
move
handle
in
opposite
direction
until
the
breaker
turns
on
.
The
handle
will
indicate
ON
.
Depress
PUSH
TO
TRIP
button
.
The
breaker
should
trip
,
and
the
handle
will
move
between
the
ON
and
OFF
positions
.
NOTE
:
If
the
breaker
does
not
operate
as
noted
,
check
all
installation
procedures
and
repeat
this
step
.
If
the
load
cover
is
not
properly
secured
,
the
breaker
will
not
operate
.
G
.
Add
load
lugs
or
connecting
straps
per
instructions
fur
-
nished
with
these
kits
.
H
.
Replace
terminal
shield
.
Tighten
two
#
8
-
32
screws
until
cover
sits
flush
with
the
end
of
the
breaker
.
NOTE
:
Wire
connector
shield
must
be
in
place
when
re
-
quired
,
prior
to
installing
terminal
shield
.
I
.
Attach
rating
label
supplied
with
the
trip
unit
,
to
the
re
-
cessed
area
on
top
of
the
handle
.
NOTE
:
Make
sure
rating
label
agrees
with
ampere
rating
of
trip
unit
installed
.
J
.
Move
handle
to
reset
position
,
handle
will
indicate
OFF
.
Circuit
breaker
is
now
ready
for
use
.
A
DANGER
H
Hazardous
Voltage
.
Will
cause
severe
injury
or
death
.
Turn
off
and
lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
A
SAFETY
INSTRUCTIONS
General
The
MD
6
trip
units
are
available
in
500
,
600
,
700
and
800
am
-
pere
ratings
.
The
ND
6
trip
units
are
available
in
900
,
1000
and
1200
ampere
ratings
.
These
devices
have
adjustable
magnetic
trip
settings
.
The
500
ampere
trip
units
have
a
magnetic
adjustment
range
from
3000
to
6000
amperes
.
The
600
,
700
and
800
ampere
trip
units
have
a
magnetic
adjustment
range
from
4000
to
8000
amperes
.
The
900
,
1000
,
and
1200
ampere
trip
units
have
a
range
from
5000
to
10000
amperes
.
Ranges
for
dc
op
-
eration
are
15
percent
higher
.
The
900
,
1000
and
1200
ampere
ND
6
trip
units
cannot
be
in
-
stalled
in
the
MD
frames
.
All
trip
unit
ratings
can
be
installed
in
the
ND
frame
.
See
breaker
frame
label
or
consult
Siemens
Energy
and
Automation
,
Inc
.
sales
office
for
complete
catalog
number
information
.
Mounting
Procedure
For
Trip
Unit
A
.
Remove
terminal
shield
(
1
)
from
load
side
of
breaker
frame
.
Two
#
8
-
32
screws
(
Figure
2
)
.
B
.
Remove
load
cover
(
2
)
from
breaker
frame
.
Six
#
10
-
32
x
3
A
in
.
screws
(
3
)
and
two
#
10
-
32
x
1
%
in
.
screws
(
4
)
.
C
.
Lower
trip
unit
(
5
)
into
place
as
shown
in
Figure
2
.
The
two
hooks
(
6
)
(
Figures
1
and
2
)
on
the
trip
unit
must
fit
over
pins
(
7
)
on
frame
.
Breaker
handle
may
be
removed
to
ease
assembly
.
Replacement
Procedure
For
Trip
Unit
NOTE
:
Circuit
breaker
must
be
in
tripped
position
before
cover
is
removed
.
To
trip
the
breaker
depress
the
red
PUSH
TO
TRIP
button
.
A
.
Remove
terminal
shield
from
load
side
of
breaker
.
Two
#
8
-
32
screws
(
Figure
2
)
.
B
.
Remove
load
cover
from
breaker
.
Six
#
10
-
32
x
3
A
in
.
screws
and
two
#
10
-
32
x
1
%
in
.
screws
.
C
.
Remove
lugs
or
load
side
connection
screws
.
D
.
Remove
trip
unit
.
Six
5
/
ie
-
18
socket
head
cap
screws
.
NOTE
:
These
screws
will
remain
captive
with
trip
unit
.
E
.
Add
new
trip
unit
as
outlined
in
Steps
C
through
J
of
“
Mounting
Procedure
for
Trip
Unit
.
”
Figure
1
10
Courtesy of NationalSwitchgear.com

Installation
Diagram
Figure
2
11
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Handle
Blocking
Device
(
MN
6
BL
)
D
.
With
a
screwdriver
,
turn
the
screws
so
they
enter
the blind
holes
molded
in
each side
of
the
toggle
handle
.
Tighten
the
two
screws
evenly
so
that
when
they
engage
the
bot
-
tom
of
the
blind holes
,
they
project
an
equal
distance
of
.
094
in
.
(
Figure
2
)
above the
tapped
surface
.
Do
not
over
torque
.
Maximum
torque
2
in
.
lb
.
A
DANGER
H
Turn
off
and
lock
out
all
device b
*
efore
h
?
stalHna
d
_
.
fore
mstaHing
A
SAFETY
INSTRUCTIONS
General
The
handle
blocking
device
,
MN
6
BL
,
is
provided
to
permit
blocking
the
toggle
handle
of
an
MD
and
ND
-
Frame
circuit
breaker
in
the
OFF
position
.
The
device
can
be
field modified
to
permit
blocking
of
the handle
in
the
ON
position
.
Figure
2
Installation
of
Handle
Blocking
Device
A
.
Turn
power
off
supplying
circuit breaker
.
B
.
Turn
circuit breaker
off
.
C
.
Loosen
the
two
screws
(
1
)
(
#
10
-
32
x
%
in
.
)
so
that
the
blocking
device
can
be
positioned
and
fully
seated
over
the
toggle
handle
,
as
shown
in
Figure
1
.
Modification
and
Use
for
Blocking
the
Handle
ON
The
lip
of
the
blocking
device
(
2
)
(
Figure
1
)
is
undercut
so
that
a
short
section
can
be
removed
.
To
modify
the device
for
blocking
a
handle
ON
,
snap
off
this
removable
tab
and dis
-
card
.
A
.
Turn
power
off
supplying
circuit
breaker
.
B
.
Turn circuit
breaker
on
.
C
.
Follow
installation
procedures
,
Steps
C
and
D
,
of
“
Installa
-
tion Handle
Blocking
Device
.
”
A
(
1
)
10
-
32
X
3
/
8
screws
Y
m
Tab
I
pr
:
j
| |
J
! i
aft
I 4
-
if
m
.
Blocking
Device
;
ij
tm
Figure
1
1
?
12
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Handle
Padlocking
Device
(
MN
6
HPL
)
A
DANGER
Hazardous
Voltage
.
Will
cause
severe
injury
or
death
.
1
'
j
t
.
Turn
off
and
lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
A
SAFETY
INSTRUCTIONS
Figure
2
General
The
padlocking
device
,
MN
6
HPL
,
consists
of
the
handle
blocking
device
(
3
)
and
an
additional
component
(
4
)
that
per
-
mits
padlock
securement
of
the
circuit
breaker
handle
in
the
OFF
position
(
Figure
3
)
.
Field
modification
of
the
handle
blocking
device
will
also
permit
padlock
securement
of
the
cir
-
cuit
breaker
handle
in
the
ON
position
.
Installation
of
Handle
Padlocking
Device
To
install
the
padlocking
device
,
first
complete
the
applicable
Handle
Blocking
Installation
Instructions
.
A
.
Slide
the
retaining
slots
of
the
padlocking
component
(
4
)
over
the
handle
blocking
device
retaining
screws
.
Position
the
padlocking
component
at
the
angle
shown
in
Figure
3
.
Installation
of
Handle
Blocking
Device
A
.
Turn
power
off
supplying
circuit
breaker
.
B
.
Turn
circuit
breaker
off
.
C
.
Loosen
the
two
screws
(
1
)(
#
10
-
32
x
%
in
.
)
so
that
the
blocking
device
can
be
positioned
and
fully
seated
over
the
toggle
handle
,
as
shown
in
Figure
1
.
Figure
3
B
.
Rotate
the
padlocking
component
until
it
is
positioned
over
the
handle
blocking
device
,
as
shown
in
Figure
4
.
In
-
stall
up
to
three
padlocks
,
as
required
.
Figure
1
D
.
With
a
screwdriver
,
turn
the
screws
so
they
enter
the
blind
holes
molded
in
each
side
of
the
toggle
handle
.
Tighten
the
two
screws
evenly
so
that
when
they
engage
the
bot
-
tom
of
the
blind
holes
,
they
project
an
equal
distance
of
.
094
in
.
(
Figure
2
)
above
the
tapped
surface
.
Do
not
over
torque
.
Maximum
torque
2
in
.
lb
.
13
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Plug
-
In
Adapters
-
MD
Frame
A
Mounting
Preparation
(
Figures
1
and
2
)
A
.
If
the
switchboard
mounting
plate
(
1
)
is
to
be
used
,
provide
required
drilling
as
shown
in
Figure
1
.
B
.
If
other
mounting
means
are
to
be
used
,
provide
the
cut
-
outs
and
drilling
required
to
mount
the
adapter
blocks
as
shown
in
Figure
2
.
A
DANGER
H
Hazardous
Voltage
.
Will
cause severe
injury
or
death
.
Turn
off
and lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
Switchboard
Mounting
Plate
(
If
used
Figure
3
)
A
.
Place switchboard
mounting
plate
(
1
)
in
position
at
loca
-
tion
previously
prepared
in
Step
A
above
.
Secure
in
place
with
5
/
ie
in
.
hardware
(
furnished
by
customer
)
.
A
SAFETY
INSTRUCTIONS
Mounting
Block
(
Figure
3
)
A
.
Align
mounting
block
(
2
)
with
cutouts
in
switchboard
mounting
plate
(
or
customer
’
s
mounting
means as
previ
-
ously
prepared
in
Step
B
above
)
and
secure
in
place
with
3
/
e
in
.
flatwashers
(
3
)
,
lockwashers
(
4
)
,
and
3
/
s
-
16
in
.
hex
nuts
(
5
)
furnished
.
Tighten
to
216
in
.
-
lb
.
NOTE
:
Plug
-
in
adapters
are
for
use
only
with
MD
-
Frame
.
General
A
complete
plug
-
in
installation
requires
one
line end
adapter
assembly
(
consisting
of
mounting
block
,
tulip
connectors
and
associated
hardware
)
,
one
load
end
adapter
assembly
and
one
switchboard
mounting
plate
.
The
switchboard
mounting
plate
is
optional
and
can
be
replaced
by
other
mounting
means
to
suit
customers
’
requirements
.
Breaker
Preparation
(
Figure
4
)
A
.
Loosen
four
breaker
terminal shield
screws
(
6
)
and
re
-
move
both
line
and
load
side terminal
shields
(
7
)
.
Caution
:
Make certain that
breaker
operating
handle
is
in
OFF
position
before
proceeding
with
the
next
step
.
Remove
pressure
wire
connectors
from
breaker
if
present
.
B
.
Place
tulip clip
assembly
(
8
)
on
back
of
breaker
in
recess
provided
in
base
molding
.
Secure
in
place
with
5
/
ie
in
.
flat
-
washers
(
9
)
,
lockwashers
(
10
)
and
5
/
ie
-
18
in
.
hex
head
bolts
(
11
)
furnished
.
Tighten
these bolts
to
72
in
.
-
lb
.
to
as
-
sure
a
good
electrical
connection
.
Repeat
this
procedure
for
the
remaining
tulip
clip
assemblies
.
C
.
Insert end
shields
(
12
)
into
slots
provided
at
line
and
load
end
of
breaker
.
D
.
Affix
accessory
warning
label
(
13
)
to
top
of
circuit breaker
.
No
.
of
Poles
Line
End
Adapter
Switchboard
Mtg
.
Pan
Load
End
Adapter
PC
5662
PC
5662
PL
9698
2
*
PC
5663
PC
5663
PL
9698
3
Final
Assembly
(
Figure
5
)
A
.
Make bus
connection
to
mounting
block
studs
.
Use
Only
Copper
Bus Bars
.
Use
hex
nuts
(
14
)
furnished
to
secure
this
connection
.
Tighten
to
2400
in
.
-
lb
.
(
Figure
5
)
.
B
.
Align
breaker
with
mounting
blocks
and
force
female
tulip
clips
over
male
studs
in
mounting
block until
breaker
base
bottoms
against
mounting
block
.
Secure
breaker
in
place
with
3
/
s
-
16
x
V
/
2
in
.
mounting
screws
(
15
)
,
lockwashers
(
16
)
,
and
flatwashers
(
17
)
furnished
.
Tighten
to
216
in
.
-
lb
.
C
.
Replace
breaker
terminal
shields
(
7
)
and
secure
with
four
breaker terminal shield
screws
(
6
)
.
Tighten
to
12
in
.
-
lb
.
D
.
If
installation
requires
use
of front
panel
trim
,
provide
cut
-
out
for
breaker escutcheon
as
shown
in
Figure
6
.
Plug
-
in
Adapters
and
Mounting
Blocks
(
shown
with
breaker
)
14
Courtesy of NationalSwitchgear.com

Installation
Diagrams
(
13
)
.
344
Dia
.
Hole
4
Pis
.
(
For
.
312
Mtg
.
Hardware
)
6.66
*
3.33
B
Q
>
0
ji
,
£
nn
i
0
D
®
0
®
8
rf
{
1
)
Mounting
Plate
Tulip
Clip
Assembly
16.41
4
3
18.41
|
•
3
V
I
v
#
f
'
.
.
56
!
-
0
I
i
t
(
6
)
Mounting
Hardware
(
11
)
(
10
)
(
9
)
(
7
)
(
12
)
End
Shields
Terminal
Shield
Screws
Breaker
Mtg
.
Locations
Terminal
Shields
9.0
#
Breaker
Preparation
Drilling
Switchboard
Mounting
Plate
Figure
4
Figure
1
Breaker
Outline
iii
t
-
>
1.75
t
.
438
Dia
.
6
Holes
12.53
/
4
v
2.50
Dia
.
Cutout
6
Places
'
r
+
—
I
-
T
—
l
-
*
,
+
Customer
'
s
Mtg
.
Sheet
(
Optional
)
Breaker
Mtg
.
Locations
—
Drilling
and
Cutouts
for
Adapter
Block
Figure
2
—
.
312
Mounting
Hardware
(
By
Customer
)
Figure
5
'
r
If
Mounting
Plate
(
1
)
u
;
(
2
)
Mounting
Block
i
j
Mounting
(
3
,
4
,
5
)
Hardware
is
E
_
ss
.
!
•
-
-
-
-
Plug
-
In
Adapter
Installation
Figure
3
Figure
6
15
Courtesy of NationalSwitchgear.com

9.52
l
-
T
-
E
Plug
-
In
Adapters
-
ND
Frame
5.50
t
.
68
&
UNE
END
0 0
(
1
)
A
DANGER
Mounting
Preparation
:
Figures
1
and
2
A
.
Turn
off
and lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
B
.
If
the
switchboard
mounting
plate
(
1
)
is
to
be
used
,
provide
required
drilling
as
shown
in
Figure
1
.
C
.
If
other
mounting
means
are
to
be used
,
provide
the
cutouts
and
drilling
required
to mount
the
adapter
blocks
as
shown
in
Figure
2
.
18.15
H
Hazardous
Voltage
.
Will
cause
severe
injury
or
death
.
Turn
off
and
lock
out
ail
power
supplying
this
device
before
installing
or
servicing
.
0
i
±
r
M
'
f
-
o
t
0.344
4
PL
Cat
.
No
.
PL
9699
VI
-
!!
'
A
SAFETY
INSTRUCTIONS
Figure
1
:
'
h
‘
'
f
.
03
NOTES
:
These
instructions
outline
the
recommended
instal
-
lation
procedure
.
The
term
circuit breaker
used
in
these
instructions
includes
motor
circuit
interrupters
and
molded
case
switches
.
9.01
±
9.1
3.27
±
-
.
00
.
00
2
PL
.
56
t
0
-
«
6.000
2
PL
Switchboard
Mounting
Plate
(
if
used
)
:
Figure
3
A
.
Place switchboard
mounting
plate
(
1
)
in
position
at
location
pre
-
viously
prepared
in
Step
2
above
.
Secure
in
place
with
5
/
i
6
"
hard
-
ware
(
hardware
fur
-
nished
by
customer
)
.
Customer
’
s
Mtg
.
Sheet
(
Optional
)
7.861
Application
Information
0.41
4 PL
Vertical Bus Horizontal
Bus
Mounting
Plate
0
No
.
of
Poles
<
t
>
.
56
=
r
.
03
3.27
±
Cut
Out
2
Places
2
PC
5664
PC
5665
PL
9699
I
"
3
PC
5666
PC
5667
PL
9699
f
All
adapters
are
suitable
for
line
or
load
end
use
.
Figure
2
General
A
complete
plug
-
in
installation
requires
an
adapter
for
both
the
line
and
the
load
ends
of
the
circuit breaker
,
associated
hardware
and
one
switchboard
mounting
plate
.
The
switch
-
board
mounting
plate
is
optional
and
can
be
replaced
by
other
mounting
means
to
suit
specific
requirements
.
Figure
3
Mounting
Block
:
Figure
3
A
.
Align
adapter
assembly
(
2
)
with
cutouts
in
switchboard
mounting
plate
(
or
customer
’
s
mounting
means
as
previ
-
ously
prepared
in
Step
3
above
)
and
secure
in
place
with
3
/
811
flat
washers
(
3
)
lock
washers
(
4
)
,
and
3
/
s
—
16
hex
.
nuts
(
5
)
furnished
.
Tighten
to
216
in
.
lbs
.
(
18
ft
.
lbs
.
)
.
#
16
Courtesy of NationalSwitchgear.com

Installation
Diagrams
Breaker
Preparation
:
Figure
4
CAUTION
:
Make
certain
that
breaker
operating
handle
is
in
the
OFF
or
TRIPPED
position
before
proceeding
.
A
.
Loosen
four
breaker
terminal
shield
screws
(
6
)
and
remove
both
line
and
load
side
terminal
shields
(
7
)
.
B
.
Place
terminal
stabs
(
8
)
on
back
of
breaker
in
recess
pro
-
vided
in
base
molding
.
Secure
in
place
with
5
/
i
6
H
flat
wash
-
ers
(
9
)
,
lock
washers
(
10
)
and
5
/
i
6
-
18
hex
.
head
bolts
(
11
)
furnished
.
Tighten
these
bolts
to
96
in
.
lbs
.
(
8
ft
.
lbs
.
)
to
assure
a
good
electrical
connection
.
Repeat
this
procedure
for
the
remaining
terminals
.
C
.
Insert
end
shields
(
12
)
into
slots
provided
at
line
and
load
ends
of
breaker
.
D
.
Affix
label
(
13
)
to
front
of
circuit
breaker
as
shown
in
Figure
4
.
Figure
4
Final
Assembly
:
Figure
5
A
.
Make
bus
connection
to
the
mounting
block
studs
in
accordance
with
panelboard
specifications
.
B
.
Position
breaker
over
the
terminal
block
studs
(
14
)
.
Install
each
of
the
four
slotted
W
-
1 6
x
1
W
long
circuit
breaker
mounting
nuts
(
15
)
.
Tighten
these
nuts
uniformly
so
that
the
breaker
remains
parallel
with
the
mounting
surface
,
forcing
the
circuit
breaker
terminal
stabs
into
their
respective
mounting
block
finger
clusters
.
Torque
these
nuts
to
216
in
.
lbs
.
(
18
ft
.
lbs
.
)
.
C
.
Replace
breaker
terminal
shields
(
7
)
and
secure
with
four
breaker
terminal
screws
(
6
)
.
Tighten
to
12
in
.
lbs
.
(
1
ft
.
lb
.
)
.
D
.
If
installation
requires
use
of
front
panel
trim
,
provide
cutout
for
breaker
escutcheon
as
shown
in
Figure
6
.
Breaker
Outline
.
-
Line
Side
of
Breaker
3.88
Mounting
Locations
1.94
1
i
*
—
r
-
6.38
i
4
i
i
T
,
i
i
:
i
;
it
4.70
i
i
i
i
v
i
i
I
i
K
Cutout
i
-
L
Front
Panel
Trim
Figure
5
Figure
6
17
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Connecting
Studs
(
RS
5785
,
RS
5786
)
A
DANGER
1
H
Top
of
Breaker
I
”
*
"
1
"
j
Hazardous
Voltage
.
Will
cause
severe
injury
or
death
.
Turn
off
and
lock
out
all
power
supplying
this
device
before
installing
or
servicing
.
1.33
GEH
3
EM
3
E
>
f
-
jt
<
0
£
|
Left
I
CD
13.31
Right
Pole
Pole
<
D
Center
Pole
S
A
SAFETY
INSTRUCTIONS
(
ft
v
875
General
These
connecting
studs
can
be
used
on
2
or
3
-
pole
circuit
breakers
and
on
line
and
load
terminals
.
Both
the
long
stud
RS
5785
and
the
short
stud
RS
5786
,
can
be
used
on
adjacent
poles
or
alternated
,
as
required
by
the
installation
.
1.5
.
625
1.25
3.0
yfi
,
3.0
•
•
I
;
«
•
•
•
•
••
•
••
•
•
•
•
*
•••
•
••
tVi
!
V
.
V
X
*
•
*
•
*
•
•
*
k
v
#
v
M
iW
•
•
e
•
•
•
9
9
9
9
99
9
9
9
Panel
Drilling
Plan
Figure
1
Connecting
Studs
Attached
To
Breaker
Mounting
Preparation
A
.
Turn
off
and
lock
out
all
power
supplying
circuit
breaker
before
installing
.
B
.
Drill
mounting
panel
as
shown
in
drilling
plan
,
Figure
1
.
This
user
provided
panel
must
be
made
from
a
material
acceptable
for
supporting
uninsulated
live
parts
and
have
adequate
strength
to
support
the
circuit
breaker
.
Thick
-
ness
should
be
1
A
in
.
min
.
and
1
in
.
max
.
C
.
Figures
1
and
2
show
dimensioning
information
which
can
be
used
to
plan
the
circuit
breaker
termination
interface
.
Figure
2
f
18
Courtesy of NationalSwitchgear.com

I
-
T
-
E
Connecting
Studs
(
RS
5785
,
RS
5786
)
Circuit
Breaker
Preparation
A
.
Remove
terminal
shield
(
1
)
from
line and load side
of
breaker
frame
.
Two
#
8
-
32
screws
(
2
)
each
(
Figure
3
)
.
B
.
Attach the
connecting
studs
(
3
)
as
shown
in
Figure
4
,
to
each
pole
of
the circuit
breaker
with
two
5
/
ie
-
18
hex
head
cap
screws
,
flatwashers
and lockwashers
(
4
)
.
Torque
the
screws
to
72
lb
.
in
.
C
.
Inspect
the
rear
busbar
.
When
properly
attached
they
should
be
aligned
and
parallel
with
each
other and
perpendicular
with
the
circuit
breaker
mounting
surface
.
Circuit
Breaker
Mounting
Procedure
A
.
Position
the circuit breaker
on
the
mounting
panel
,
passing
the attached
connecting
stud
through
the
panel
openings
.
B
.
Secure
the circuit breaker
to
the
panel
by attaching
each
connecting
stud
with
the
panel
clamp
,
(
5
)
(
Figure
4
)
hex
head bolt
,
lockwasher and
flatwasher
(
6
)
supplied
.
Torque
the
bolts
to
96
in
.
lb
.
C
.
Complete
the
appropriate
user
connections
to
the
rear
connecting
stud
.
D
.
After
the breaker
is
installed
,
attached
to
the
mounting
panel
and
terminated
,
retorque
each
of
the
5
/
ie
-
18
hex
head
cap
screws
(
4
)
(
Figure
4
)
to
72
in
.
lb
.
E
.
Insert the end
shields
(
7
)
into
the slots
provided
at
the
line
and
load ends
of
the
breaker
(
Figure
4
)
.
F
.
Replace
the
breaker
terminal
shields
(
1
)
on
the line
and
load
side
of
the circuit breaker and
secure
with
four
breaker terminal shield
screws
(
2
)
.
Tighten
to
12
in
.
lb
.
G
.
Affix
label
(
this
device is
equipped
with
rear
connecting
studs
) (
8
)
to
the
front of
the
circuit breaker
(
Figure
3
)
.
H
.
If
installation
requires
use
of front
panel
trim
,
provide
cut
-
out
for
breaker
escutcheon
(
Figure
5
)
.
Figure
3
Installations
Requiring
Panel
Premounted
Studs
If
it
is
necessary
to
install the
straps
in
a
panelboard
prior
to
their attachment
to
the circuit breaker
,
the
following
procedure
is
recommended
.
A
.
Construct
a
strap
positioning
template
fabricated from
1
/
2
in
.
thick
material
,
dimensioned
with
the hole
pattern
(
Figure
6
)
.
B
.
Attach
the
rear
connecting
studs
to
the
mounting
template
using
the
5
/
ie
-
18
hex
head
cap
screws
(
4
)
provided
(
Figure
4
)
.
Note
that
the
rear
strap
mounting
pads
are
not
symmetrical
.
The
studs
must
be
mounted
with
the orientation
(
Figure
4
)
.
C
.
Position
the
template
and stud
assembly
on
the
circuit
breaker
mounting
panel
,
passing
the
attached
rear
studs
through
the
panel
opening
.
D
.
Secure
the
assembly
to
the
panel
by
attaching
each
con
-
necting
stud
with
the
panel
clamp
(
5
)
hex
head
bolt
,
lockwasher
and
flat
washer
(
6
)
supplied
.
Torque
to
96
in
.
lb
.
(
Figure
4
)
.
E
.
Complete
the
appropriate
user
connections
to
the
rear
con
-
necting
studs
.
Figure
4
Figure
5
19
Courtesy of NationalSwitchgear.com