Eaton Power Defense NRX NF Series User Manual

6
EATON CORPORATION www.eaton.com
Instructions for Undervoltage Release, Shunt Trip, and Overcurrent
Trip Switch
Instructional Leaflet IL0131087EN
Effective January 2019
Figure 17. Step 10 (RF Frame Shown).
ote:N The Proper routing of leads will prevent the wires from being pinched by
the trip unit interlock plate in the RF Frame breaker.
Step 11: The installed left accessory tray should look as shown
with secondary leads extending out behind the trip unit. Secondary
connections can now be made.
Figure 18. Step 11 (NF Frame Shown).
Step 12: Make the appropriate secondary connections as outlined
in Section 6. If necessary, bundle secondary wires using industry-
accepted wire tie practices.
Step 13: Replace the front cover, and secure it in place with the four
mounting screws previously removed in Step 1.
Section 3: Removal of Undervoltage Release
and/or Shunt Trip in Left Accessory Tray
Proceed with the following seven steps:
Step 1: If necessary, remove the front cover from the breaker by first
performing Steps 1 and 2 of Section 2.
Step 2: 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 3: Once the secondary leads are disconnected, finger depress
the 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.
ote:N A minimum of 2 inches (50.8 mm) for NF Frame and 3 inches (77 mm)
for RF Frame of side clearance is required on an installed fixed breaker for tray
removal.
Figure 20. Step 3 (NF Frame Shown).
ST
UVR
Trip Unit Interlock Plate
Accessory Tray
Installed
Secondary Connectors
Connected Secondary
Connectors
ST
UVR

Eaton Power Defense NRX NF Series Specifications

General

Brand	Eaton
Model	Power Defense NRX NF Series
Category	Circuit breakers
Language	English