Westi n g ho use Electric Corporation
Low Voltage B reaker Division
Beaver, Pen nsylvania 1 5009
D i mension S heet
29-1 70
Page 25
October, 1 977
Su persedes Di mension S heet 29- 1 70
a l l previous issues.
Mailed to: E, D, C/1 901 , 1 928, 1 929/PL
Page 25: Types J B, K B and MARK 75®
Type H K B 250 Amperes
Page 26: Type DA 400 Am peres
AB DE-ION ®
Circuit Brea kers
Type J B, KB and M A R K
75®
Type H K B Breakers
Current
Carry1ng
Ports ore Om1tted
from
Center Pole
Mognet1c Tr1p
Adjustment
Sof-T-Vue Cover
Rear Connected Studs
1�-18
Thread
Do Not Use More
Terminal Arrangements
Than
10Ft.
Lbs.
.Torque to T1ghten Nuts
Cable
Catalog
Amp
W�re
N u m ber
Rat1ng
S1ze
C u / AI
T 2 50K8
70 to 2 50
#4 to 3 50M C M / C u
" C u/AI
TA250KB
70 to 2 50
# 4 to 350MCM
Smgle
•
Alumtnum Body
Drilling Plans
For Mounting Bolts
( Front Connected Terminals)
:::.::.�
'
"'
"""'""""
Load End
For Rear Connected Studs
Reproduced from
Drawing
4974050
Support Block or
e
not
Supplied W1th
Breaker (Must be Ordered Separately)
Stud
Stud
A mpere
Style
Rating
N u mber
2 50 Short 50 1 OD23G01
2 50 Long
501 0D23G02
2 50 S hort 501 0D23G01
2 50 Long
50 1 OD23G02
2 50 Short 501 OD23G01
250 Long
501 OD23G02
s l
4
Line End
Load End
Panel
Tube Length Tube
Th1ckness
_ _
Style
A
B
c
Num ber
% to 1
2 iJ)z
4560983H05
Y.
to 1
3 � 501 OD23 H05
� to %
1 �2
456D983 H06
� to %
4/ii 501 0023 H06
� to ;;,;
1
1 �!]
2
456 0983 H07
/,; to �
4% 50 1 0D23H07
�-13
Thread
Stud complete consists of one stud assembly a n d one tube as per chart
Order long and short studs as required to obtain proper bus spac1ng
For Plug-in Blocks
Line End
Load End
1�
Dtameter
(
4
)
Holes
for
1
%
M
o
un
t
t
ng Bolts
Front Cover Cutout
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