13
Instruction Leaflet
IL0131088EN
Effective May 2015
Series NRX with PXR - Instructions for
Spring Release, Latch Check Switch,
and Motor Operator
EATON
www.eaton.com
Figure 34.
Flexible Mounting Tabs
Step 3.
Step 4:
Rotate the top end of the terminal block in until it engages the
appropriate flexible mounting tab at the top of the mounting plate. A
clicking sound will be heard if done properly.
Figure 35.
14
13
Step 4.
IMPORTANT
TO REMOVE RIGHT AND LEFT ACCESSORY TRAYS OR ANY OTHER
ELECTRICAL ACCESSORY, THE APPROPRIATE ACCESSORY CONNECTOR PLUG
MUST FIRST BE DISCONNECTED.
Step 5:
To remove an accessory plug on a fixed circuit breaker, the
appropriate fixed secondary terminal block must first be removed. To
remove a fixed secondary terminal block, lift up on the small flexible
mounting tab at the top of the fixed terminal block mounting plate, and
rotate the terminal block out in the opposite direction shown in Figure
35. Once the terminal block is removed, the accessory connector plug
can be unplugged from the bottom of the terminal block. Refer to
Item 2 and Figure 31 under the heading “General information” in this
section for detailed assistance with the removal.
Drawout Breaker Connections
Proceed with the following three steps.
Step 1:
Become familiar with the drawout secondary plug housing
where secondary connections are made.
ote:
N
Secondary connection points have numerical and descriptive laser-etched
identifications on top of the housing directly matching the plug-in locations
below.
Figure 36.
ST1
1
2
ST2
UV1
3
4
UV2
OT1C
5
6
OT1M
OT1B
7
8
OT2B
OT2C
9
10
OT2M
N1
11
12
N2
ALM1
ALM2
15
16
ALM3
G1
17
18
G2
+24V
19
20
AGND
ZIN
21
22
ARMSIN
ZCOM
23
24
ZOUT
CMM1
25
26
CMM2
CMM3
27
28
CMM4
PTVB
PTVN
RR2
RR1
PTVC
MODBA
33
34
MODBB
35
36
37
38
39
40
2CMM2
MODBG
2CMM3
2CMM1
41
42
2CMM4
ARCON1
ARCON2
ARCON3
43
44
45
46
PTVA
29
30 32
31
ALMC
13
14
47
48
+
-
+
-
Step 1.
Step 2:
Match the numbers on the secondary leads with the numbers
etched on the top of the secondary housing, and insert the connector
plug into the associated slot.
Figure 37.
1
2
Step 2.
IMPORTANT
TO REMOVE RIGHT AND LEFT ACCESSORY TRAYS OR ANY OTHER
ELECTRICAL ACCESSORY, THE APPROPRIATE ACCESSORY CONNECTOR PLUG
MUST FIRST BE DISCONNECTED.
Step 3:
To remove an accessory connector plug on a drawout circuit
breaker, unplug it from its secondary plug housing. Refer to Item 2
and Figure 31 under the heading “General information” in this section
for detailed assistance with the removal.
