Section 3: Removal Of Undervoltage Release And/Or Shunt Trip In Left Accessory Tray - Eaton NRX Series Installation And Removal Instructions

Instruction Leaflet IL01301008E
Effective June 2015
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Figure 17. Step 10 (RF frame shown)
N otee: The proper routing of leads will prevent the wires from being pinched
by the trip unit interlock plate in the RF frame breaker.
Step 11e: The installed left accessory tray should look as shown
with secondary leads extending out behind the trip unit. Secondary
connections can now be made.
Accessory tray
installed
Figure 18. Step 11 (NF frame shown)
Step 12e: Make the appropriate secondary connections as outlined
in Section 6. If necessary, bundle secondary wires using industry-
accepted wire tie practices.
Step 13e: Replace the front cover, and secure it in place with the four
mounting screws previously removed in Step 1.
6
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Trip unit
interlock plate
Secondary connectors
Installation and removal instructions for Series NRX
undervoltage release, shunt trip, and overcurrent
trip switch in left accessory tray
Section 3: Removal of undervoltage release
and/or shunt trip in left accessory tray
Proceed with the following seven steps.
Step 1e: If necessary, remove the front cover from the breaker by
first performing Step 1 and Step 2 of Section 2.
Step 2e: Locate the left accessory tray behind the trip unit, and
disconnect the appropriate secondary connections as described
in Section 6.
Figure 19. Step 2 (NF frame shown)
Step 3e: Once the secondary leads are disconnected, finger depress
tabs on each end of the NF frame tray and slide it to the left for
removal. For the RF frame tray, press the thumb tab down and slide
the tray to the left for removal.
A minimum of 2.00 inches (50.8 mm) for NF frame and 3.00 inches
N otee:
(76.2 mm) for RF frame of side clearance is required on an installed fixed
breaker for tray removal.
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ST
Figure 20. Step 3 (NF frame shown)
Connected secondary
connectors