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Xantrex RV Series Inverter/Charger Owner’s Manual
18
Stacking Inverters
Precautions
• Only stack the same models of the RV inverter. For example, stack an RV2012 only with an
RV2012.
• Use only a Xantrex stacker cable, available in RV Series External Shunt Kit (part #2813). It is
not a standard telephone cable.
• Connect AC neutrals together close to the inverters. Keep input and output neutrals isolated.
• Connect the inverter’s battery negative terminals together according to this manual.
• Make all AC and DC connections and verify that they are made in accordance with this
manual. Make sure that all connections are tight (especially the DC side). Connect the stacker
cable to each inverter’s stacking port.
• Each inverter must be turned on individually before AC power will be available.
DC Connections for Stacked Inverters
Connection with One DC Over-Current Device:
When stacking two RV units with one DC
disconnect device, connect the units and battery as follows: Connect the negative terminals of the
inverters together, and then attach one of the negatives to the battery. Next connect the positive
terminals of the inverters together, and attach one to the battery. Place the DC over-current
device in the positive line between the inverter and the battery. (See the following diagram for
proper connection)
+
–
+
–
+
–
RV Series
Inverter
RV Series
Inverter
Stacker cable
DC over-current
protection
Battery
Connection with Two DC Over-Current Devices:
If individual over-current devices are to be
used between the battery positive and each inverter, connect the stacked system as follows:
Connect the negative terminals of the inverters together and connect each negative terminal to
the battery also. Connect each positive terminal of the inverter to the battery through a DC
disconnect in each positive line. Do not tie the positives together between inverters. (See the
following diagram for proper connection)
Once the inverters are connected to the battery as described above, connect the Xantrex stacker
cable between stacker ports.
+
–
+
–
+
–
RV Series
Inverter
RV Series
Inverter
Stacker cable
DC over-current
protection
Battery