Rockwell Automation 140U N-Frame Circuti Breakers Instruction Leaflet for N-Frame Circuit Breakers User Manual
Page 5
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Page 5
Fig. 2-1
Terminal Installation
Fig. 2-2
Conductor Extensions and Terminal Installation for 100% Rating
For bus connections use:
.500-13 bolts (English Threads)
For front mounted bus connections, socket cap screws
are recommended.
Terminals are not included in the
conductor extension kit.
Terminals must be purchased
separately.
Torque Table (Domestic)
Terminal
Cat. No.
Wire Size
MCM
Cond.
Mat’l
Torq.
lb - in
1 #1 - 500 (2) CU / AL 375
1 3/0 - 400 (3) CU / AL 375
140U-N-TLA4
4/0 - 500 (4) CU / AL 375
1 500 - 750 (3) CU / AL 450
1 2/0 - 500 (2) CU ONLY 300
1 3/0 - 500 (3) CU ONLY 300
140U-N-TLC4
3/0 - 400 (4) CU ONLY 275
Note: Conductor extensions
increase breaker length by 3.75”
on each end.
1 Contact Allen-Bradley
40752-093(1)
Effective 5/02
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