Dimension Sheet
29-1 70N
Page 2
Westinghouse Series C Molded Case Circuit Breakers, N-Frame, 400-1200 Amperes
Type ND Two- and Three-Pole Breakers,
Continued
Drilling Plans
Rear Connected
w
I
7.000
1
(177.800)
I
11.500
(292.100)
I
-EB--
1
I
'
�I
!i
-Et1-
'
I
I
'
I
'
I
'
t-- j----�
<>_ Handle
1
I
'
-4-
Line End
'
I
I
(6
�
7
i
5
�
)
--.l
5.500
(139.700)
Reproduced from drawing
1494064
Cutler-Hammer
Westinghouse
&
Cutler-Hammer Prod ucts
Five Parkway Center
I
I
4
J
O m it Center for
2-Pole Breaker
Pittsb u rg h , Pennsylvania, U.S.A. 1 5220
Front Connected
-t---
1
8.625
I I
.2?
I
'
' "0
(219075)
1
I
�
I
I
,
, � ,
I
I
I
I
I
I
!
I
I I
'
'
I
I
I
I
I I
- <t Handle
-4r--t----+---
1.375134.925)
:I � 1.-
2.750(69.850)
Load End
Dimensions in parentheses i n millimeters
Front Cover Cutout
1.906
(48.40)
)--
-
-
Terminal Arrangements
Catalog
Number
Wire
Range
Aluminum or Copper Cable
TA700NB1
#1 -500 MCM
TA1000NB1
3/0-400 MCM
TA1200NB1
4/0-500 MCM
TA1201NB1
500-750 MCM
Copper Cable Only
T700NB1
2/0-500 MCM
T1000NB1
3/0-500 MCM
T1200NB3
3/0-400 MCM
.250 R
(6.351 R
- -<>_ Handle
. 1 88 R
14.76) R
Number
Torque
of Cables
Lb-in
2
375
3
375
4
375
3
450
300
3
300
275
Drilling Plan for Rear Connecting Studs
Amp
Rating
700
&
800
900-1200
Hole
Diameter
1 . 188 (30.1751 Diameter
1 .3 1 2 (33.3251 Diameter
Printed i n U.S.A.
January 1995
www
. ElectricalPartManuals
. com
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