18
To connect the XPS to appliances using Class B wiring, read the following instructions and refer
to Figure 11, below.
1.
Use NAC1, NAC2, or NAC3 to route wire (between 12 [3.309 mm
2
] and 18 AWG [0.8231
mm
2
]) from “B+” and “B-” on the XPS to the first appliance.
2.
Route wire to the next appliance as shown in the figure. Repeat for each appliance.
3.
Route wire from the last appliance to the EOLR harness (10K ohm, 1/2W: P/N 733-894, PID#
4081-9008).
4.
Repeat steps 1 through 3 for each NAC output you want to use.
5.
Leave the 10 K, ½ W, brown/black/orange resistor (378-030) on each unused circuit. The
circuit must connect “B+” to “B-” terminals.
B+ B- A+ A-
B+ B- A+ A-
B+ B- A+ A-
Figure 11. Class B Wiring
Step 4. XPS Field Wiring,
Continued
Class B NAC
Wiring
XPS
BLACK
RED
RED
BLACK
RED
NOTIFICATION
APPLIANCES
TB1
12 AWG (3.309 mm
2
)
to
18 AWG (0.8231 mm
2
)
Important:
Conductors must test free of
all grounds.
4081-9008 EOL Harness (10 K, ½ W)
Place the 378-030 EOL
Resistor (10 K Ohm, ½ W;
brown/black/orange) on
unused circuits
BLACK
NAC 2 NAC 3
Ferrite bead
required for CE
compliance. Use
kit 4100-5129.
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