2
EATON CORPORATION
www.eaton.com
Instructional Leaflet
IL01301037E
Effective December 2010
For fixed-mounted circuit breakers, secondary terminal blocks
mount onto an insulated support frame (
Figure 2
).
Figure 2. Fixed Terminal Block
Electrical accessory leads are tagged with numbers associ-
ated with the applicable connection diagram. Leads are also
supplied with keyed secondary connector plugs to ensure
proper connections (
Figure 3
).
Figure 3. Leads and Connectors (Drawout Configuration Shown)
Secondary connections are made by plugging the connector
plugs into the appropriate location. A connector plug already con-
nected can be removed by squeezing two release tabs together
with small needle nose pliers and pulling out (
Figure 4
).
Figure 4. Connector Plug Removal
Customer wiring is done using tension clamp terminations.
Refer to manuals MN01301001E (NF Frame) or MN01301003E
(RF Frame) for an applicable connection diagram, other spe-
cific wiring, and additional secondary contact information for
all Series NRX circuit breakers.
Section 2: Installation and removal of fixed
terminal blocks
otee:
N
Many illustrations use the NF Frame circuit breaker for
illustrative purposes only. The RF Frame circuit breaker is handled
in a similar fashion.
Proceed with the following eight steps:
Step 1e:
Remove the four screws holding the front cover in
place (two on each side of the cover).
Figure 5. Step 1
Step 2e:
Remove the front cover. Pull down on the charging
handle to simplify removal.
