November, 1 981
Westinghouse Electric Corroration
Low Voltage B reaker Division
Beaver, Pen nsylvania
1 5009
Type N B and MAR K
75®
Type H N B
Su persedes Dimension Sheet 29-1 70,
pages 35-36, dated October, 1 977
M ailed to : E, D, C/1 90 1 , 1 928, 1 929/PL
Page
35:
Type N B, M A R K
75®
Type H N B
Page
36:
Mounting Block for Type N B,
M A R K
75
H N B, S E LTR O N I C™ Types N C ,
MAR K
75
H N C
Type NB, MARK 75® Type HNB Breakers<&
Current Corryonq Por ts
Omotted from Center
Pole
for 2
Pole B
r
eaker
Line End
F ront Connected Terminals
Ampere
Catalog No
W i re S1ze
Rat1ng
For Copper Cable Only (Supplied as Standard)
700- 1 000 T 1 000 N B 1
Tnple C a ble 3/0 - - 500 M C M
1 200 T 1 200
N
B 1
Four Cable
3/0- 400
M C M
For AL/CU Cable ( Must B e Specified)
700- 1 000
TA
1 000 NB 1
Tnple C a ble
3/0- 400
M C M
1 200 T A 1 200
N B
1
Four C a ble 4 / 0 -- 500 M C M
1 200 TA 1 20 1 N B 1
Tnple Cable -
500-750
M C M
Di mension Sheet
29-1 70
Page
35
AB
DE-ION®
Circuit Brea kers
Bolted Rear Connected Studs
For
700
to
800
Amps
Omtt from Center
Pole
for
2
Pole Breaker
Style
No
A
623B222G01
5 ':,
623B222G02
8
623B22 2G03 1
o •;,
For
900
to
1 200
Amps Only
r -
1 Inch
Mtntmum
Insulated
Pone I
Outs•de Poles Stud
Style Number
373B375G04
Center
Pole Stud Style
Number 373B375G03
( Qm,t
for
2
Pole Breaker)
Drilling Plans
F ront Cover C utout
For Mounting Bolts
( F ront Connected Ter minals)
Line End
rt_ Handle
-z}
or
t,}
312·18 Top
e_r
4
Holes
I
•
I
i
I
I
8�
I
I
i
I• '
I I
I
14
.l
· -� I
·-+
�-j
Load End
� 6''""
Reproduced From Drawing
371 0578
For Rear Connected Studs
! I nsu lated Panel)
I
Qmot
Holes
on
c'""' Pol• to•
Line End
-t
·
. I
� I
I
I
I
I
,
''.�
-+-
1--+�t.
Handle
I
I
Load End
It_
Breaker
Style N o
A
623B222G01
51;,
623B222G02
8
623B222G03
1
0'•,
@
Changed since previous issue.
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