Eaton Series NRX - Page 8

8
Instruction Leaet IL01301015E
Effective November 2016
Installation instructions for Series NRX
Type NF frame xed breaker rear connect,
front connect, and hybrid congurations
EATON www.eaton.com
Phase barriers
Tapped holes
Bus conductor
extensions
Figure 16. Step 6.5
If only using bus conductor extension kit, skip Step 7.
Cable terminal kit installation
ote:N Step 1 through Step 4 need to be completed before proceeding
with Step 7.
(I)
Cable terminal
TA700NB1M (CWT)
(J)
Cable terminal
TA1000NB1M (CWT)
(K)
Cable terminal
TA1200NB1M (CWT)
(L)
M12
hex bolt
(M)
M12 lock
washer
Figure 17. Cable terminal kit (CWT—control wire provision)
66B2638H01
NOTICE
Figure 18. Cable terminals torque requirements
Step 7
Cable terminal connections can be made directly to the bus adapters
inside the breaker or to the bus conductor extensions that extend
out of the line and load sides of the breaker (refer to Step 5). Cable
terminals are shown in Figure 19 and described in Table 3.
To complete the connections, proceed with the following steps.
1. Bolt the cable terminals directly to the bus adapters using the
hardware provided (Figure 19). Cable terminals can also be
bolted to the bus connector extensions (Figure 20). Torque the
bolted connections to 30 ft-lb (27 N∙m).
ote:N Bus conductor extensions with cable terminals only available for
42/50 kA interruption ratings.
Figure 19. Step 7.1—Connecting cable terminals directly
to bus adapters
Figure 20. Bus conductor extension with cable terminal
(available for 42/50 kA interruption ratings)