User's Manual

Xantrex RV Series Inverter/Charger Owner’s Manual

AC Wiring

Overview

The National Electrical Code (NEC) defines the standards for AC and DC installation wiring in RV

applications, but there are still many installation variables. Most are determined by the level of

automatic switching desired and the amount of external AC power to be switched.

AC Connections

Installation should be done by a qualified electrician. Consult local code for the proper

wire sizes, connectors and conduit.

The AC and DC terminals are located on the same end of the chassis as the status LED and

power switch. A six station terminal block is provided to make the AC connections. The terminal

block is used to hardwire the AC input and AC output. All terminals are labeled on the inverter.

Consult your local code for proper wire sizes, connectors, conduit, and so on. The table below

gives suggestions for wire sizing. Code requires that an external disconnect switch be used in the

AC input wiring circuit. The AC breakers in a sub panel will meet this requirement.

Step 1 Disconnect the inverter from the battery.

Step 2 Feed the wires through the Romex connectors on the right side of the inverter’s case.

Romex strain reliefs can be replaced with conduit fittings. See page 27.

Step 3 Following the wiring guide located in the AC wiring compartment and page 27, connect the

hot (black) and neutral (white) wires to the terminal block and tighten securely. The safety

(green) wire is connected to the external ground screw terminal.

Step 4 Replace the cover using the two 6-32 screws and lock washers to secure it.

MINIMUM RECOMMENDED AC WIRE SIZES

MODEL 120 VAC Input AC Output

RV2012 10 gauge 12 gauge

RV2512 8 gauge 10 gauge

RV3012 8 gauge 10 gauge

Important Precautions

The output side of the inverter’s AC wiring should at no time be connected to public power or a

generator. This condition is far worse than a short circuit. If the unit survives this condition, it will

shut down until corrections are made.

Installation should ensure that the inverter’s AC output is, at no time, connected to its AC input.

Also the AC input neutral must be isolated from the AC output neutral connections.

Review the installation diagrams included before you start making connections.