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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