Westinghouse AB DE-ION Series Manual page 135

O ctober, 1 97 7
S u persedes D i m e n s i o n S h eet 29 - 1 70
all previous i ss u es.
M a i led t o : E , D , C/ 1 901 , 1 928, 1 929/ P L
Type E B , E H B, FB and M A R K 75 H FB
2 and 3 Pole FB a n d H F B M a gnetic O n ly B reakers
C u rrent c a r rying p a rts are o m itted from center pole for 2-pole b reakers .
1 � D•ameter Hole � 2 D•ometer Counter bore � Deep from Top,
�2 D•ometer Counterbore � 2 Deep from Bottom
Note:
M a rk 75 H F B Thermal Magnetic Breakers
rwo-pole breakers are furnished in t hree-pole frame
with current carrying parts o m itted from center pole.
Reproduced F rom Drawing 4967020, 4967030, 4985060 and 4979066
Westi nghouse E l ect ric Co rpo ration
L o w Voltage B r ea k e r D ivision
Beaver, Pen nsylva n i a 1 5009
Types E B , E H B , F B , M A R K
Page 1 9 : O u t l i n e D i me n s i o ns
Page 2 0 : D r i l l i n g P l an s
2, 3, 4 Pole Thermal M a g netic B reakers ( See N ote Below)
1 ,
A Diameter Hole 1 � Deep
Accepts
Cutt1
Line End
f 2
� Inch W•de Conductor
w•th D•ameter Hole
Support Blocks for Line and Load Ends are not Supplied with Breaker and M ust be
Ordered Separately. Refer to Drawing 506CI44 When Ordering Support Blocks
All Parts Necessary to Convert a Standard Breaker are Included.
Plug-In and B o lt-On Detail
Support
Bloc k
Conductor
D i me n s i o n S heet
29 - 1 70
Page 1 9
75 ®
AB DE-ION ®
H F B
Circuit Brea kers
�
ng
#6
I n ch Wtde Conductor w1th
Thread
Screw
� Inch W1de
Conductor with
}2 D1a Hole
;j x � Copp er Bars for
�X�Copper Bars for
Bars May be Rotated
3 1
I
8
7 2
5 �
� -
°
"
:
b
Breaker
·
St
Pl u g-in
Cond uctor
.- v •
·.::" Y
,<'·,
Bolt stab to breaker
' ,', , ' , '·,:,·- : - :
conductor, then plug
into support block
f2
5
z:i
D•ometer Hole
64
Load End
2
n
15 5
50
5 , k
toiOO Am p
90°
o d Amp
I
1
u ,
z l
8
Bolt-on
Bolt stab to support
block, then bolt sup­
port block assembly to
breaker conductors.