8
Westing house Electric Corporation
Low Voltage Breaker Division
Dimensio n Sheet
29-1 70
Beaver, Pennsylvania 1 5009
Page 2 5
August, 1 978
Supersedes Dimension Sheet 29-1 70
dated October, 1 977.
Page 25: Types J B, KB and M A R K 75®
Type HKB 250 Amperes
AB DE-ION®
Circ u it B reakers
Page 26: Type DA 400 Amperes
Mailed to :
E,
D, C / 1 9 0 1 , 1 928, 1 929/ P L
Type J B, K B a n d M A R K
75®
Type H K B Breakers8
Current Carrying
Ports
ore
Omitted
from
Center Pole
for
2
Pole Breaker
Magnetic Tnp
Adjustment
Front Connected
Termtnols
( Not
Supplied
Wtth
Breaker or Frome)
See
Tobulatton
Terminal Arrangements
Cable
Catalog
Amp
Cu/AI
Single
" C u/AI
Single
Number
Rating
T 2 50KB
70 to 2 50
TA250KB
70 to 2 50
•
Aluminum Body
Drilling Plan s
Ampere Rottng
Button
�
Top of
Handle tn
"OFF"
P
o
s
t
liOn
�
Rear Connected Studs
1�-18
Thread
Do Not Use More
Than lOFt. Lbs.
Torque to Ttghten Nuts
Wire
Size
#4 to 350M C M / C u
# 2 to 350MCM/AI
#4 to 350MCM
�-13
Thread
Stud
Ampere
Rating
2 50 Short
2 50 Long
2 50 Short
2 50 Long
250 Short
250 Long
Stud
Style
N umber
31.9
32
501 0D23G01
50 1 0D23G02
501 0D23G01
501 0D23G02
501 0D23G01
501 0D23G02
Panel
Thickness
A
� to 1
� to 1
Y, to �
Y, to �
X
to Y,
� to �
Tube Length Tube
Style
B
c
Number -
21J2
4560983H05
3� 501 0023H05
1
o/32
4560983H06
4 X, 50 1 0D23 H06
1 ' Y,,
4560983H07
4% 501 0D23H07
Stud complete consists of one stud assembly and one tube as per chart.
Order long and short studs as required to obtain proper bus spacing.
Front Cover Cutout
For Mounting Bolts
For Rear Connected Studs
For Plug-in Blocks
( Front Connected Terminals)
<·"- "'""
load End
line End
832
<t_
of Breaker Handle
for
2
Pole Breaker
·
32
load End
Reproduced from Drawing 4974060
8
Changed since previous issue.
line End
load End
1� D1ameter
(
4
I
Holes
for
1�
Mounting
Baits
t_of Breaker Handle
5
-
aD1ameter
�
·
1z
32
Hole to Show
32
Ampere Rat1ng
-4i
l� 3
·
�
D
1
a
m
e
te
r
M
e
gge
r
24
�
Holes
( If
Requ1red)
load End
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. ElectricalPartManuals
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