7
Instruction Leaflet
IL01301008E
Effective June 2015
Installation and removal instructions for Series NRX
undervoltage release, shunt trip, and overcurrent
trip switch in left accessory tray
EATON
www.eaton.com
Thumb tab
ST
UVR
Figure 21. Step 3 (RF frame shown)
Step 4e:
Position the tray as shown and remove secondary leads
from behind molded retaining tabs of the accessory being removed.
Pull back on the locking tab to unlock the UVR or ST from the left
accessory tray.
Accessory locking tab
ST
UVR
Figure 22. Step 4 (NF frame shown)
ST
UVR
Figure 23. Step 4 (RF frame shown)
Step 5e:
Remove the UVR or ST by lifting it upward and out.
Step 6e:
Repeat
Step 4
and
Step 5
if the other accessory is also to
be removed.
Step 7e:
If the tray will have a new ST and/or UVR installed, follow
Step 4
through
Step 13
of Section 2. If not, just complete
Step 10
through
Step 13
of Section 2.
Section 4: Installation of overcurrent 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:
Position the left accessory tray as shown and bring the
two OTS switches down for insertion into the left accessory tray.
Carefully push the OTS switches down until they lock into place.
Figure 24. Step 2 (NF frame shown)
Metal lever
Figure 25. Step 2 (RF frame shown)
otee:
N
For the RF frame, the metal lever must pass through the opening
before locking switch into place.
