Dimension Sheet
29-1 70
Page 28
Type LB, L B B and M A R K 75® Type H L B Breakers
Magnet1c Tnp
Adjustment
Plug-In Adapter Kit
Poles
Ampere
Rat1ng
2
250-400
3
250-400
Ktt Style
Number
3 1 3C644G45
3 1 3C644G46
Reproduced From Drawing 5680006
Thread
S1ze
% 1 6
% - 1 6
Westing house Electric Corporation
Low Voltage B reaker D ivisio n
Beaver, Pennsylva nia 1 5009
Front Connected Terminals
Amp
Catalog No
W�re Size
Rat1ng
For Copper Cable (Supplied as Standard)
70-225
T22 5LA
Single Cable
2 50-350
T350DA
Single Cable
400A
T400DA2
Double Cable
For AL/CU Cable ( M ust be specified)
70 to 2 2 5
TA225LA1
Single Cable
2 50 to 350
400A
TA350DA
TA400DA1
Rear Connected Studs
Stud
Stud
Ampere
Style
Rating
N umber
400A-short
656D565G03
400A-Iong
656D565G04
400A-short
656D565G03
400A-Iong
656D565G04
400A-short
656 D565G03
400A-Iong
656D565G04
Single Cable
Double Cable
Panel
Thickness
A
% to 1
% to 1
Y, to %
Y, to %
!;;
to
Y2
Y.
to
Y,
6-350 MCM
250-500 M C M
3 /0-250 M C M
6-350 MCM Copper or
4-350 MCM Aluminum
2 50-500 M C M
3/0-250 MCM
Tube length Tube
Style
B
c
Number
2J32
3 1 3C909 H 1 7
3
2132
3 1 3C909 H2.0
1
y,,
3 1 3C909 H 1 8
4 Y,,
3 1 3C909H2 1
1 1 Y32
3 1 3C909 H 1 9
4o/:,,
3 1 3C909 H22
Stud complete consists of one stud assembly and one tube as per chart
Drilling Plans
For Mounting Bolts
Uoo
'"'
,:�
For Rear Connected Studs
For Plug-in Block
Front Cover Cutout
www
. ElectricalPartManuals
. com