
Wiring
975-0239-01-01 4–17
This manual for use by qualified personnel only
Connecting the Xantrex XW Solar Charge Controller to the
Distribution Panel
To connect the Xantrex XW Solar Charge Controller:
1. Ensure the PV array disconnect and battery disconnect are turned off.
2. Ground the Xantrex XW SCC. Connect a grounding conductor between a
Xantrex XW SCC ground lug and the power distribution panel ground bus.
See Figure 4-9.
3. Connect the PV array negative (–) output to the Xantrex XW SCC terminal
marked
PV –.
4. Connect the PV array’s positive (+) output to the PV array disconnect.
5. Route another positive (+) cable from the other end of the PV disconnect to
the Xantrex XW SCC terminal marked P
V +.
6. Connect the negative (–) battery cable to the Xantrex XW SCC terminal
marked B
AT –.
7. Connect a positive (+) cable from the Xantrex XW SCC terminal marked
B
AT + to the battery disconnect.
WARNING: Shock Hazard
Whenever a PV array is exposed to light, a shock hazard exists at the output
wires or exposed terminals. To reduce the risk of shock during installation, cover
the array with an opaque (dark) material before making the connections.
WARNING: Shock Hazard
Do not connect the battery negative to ground. Bonding the battery negative to
ground disables PV ground-fault protection. For more information,
see “Grounding” on page 4–9. See Figure 4-9 on page 4–18 for correct routing of
the battery negative.
CAUTION: Equipment damage
Do not connect the PV negative and battery negative terminals together
anywhere in the system, including the Xantrex XW Power Distribution Panel or
other DC disconnect. The PV negative and battery negative must be connected
to separate terminals as marked on the unit.
CAUTION: Reverse polarity damage
Before making the final DC connection or closing the DC breaker or disconnect,
check cable polarity at both the battery and the Xantrex XW SCC. Positive (+)
must be connected to positive (+). Negative (–) must be connected to
negative (–).
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