Wiring Pre-Installation; Main Service Panel; Sub-Panel; Ac Circuit Breakers - Xantrex7 UX - REV A Owner's Manual

Inverter/charger

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3.0 Installation

Wiring Pre-Installation

P/N 975-0026-01-01 Rev A 06/2002

If you have an inverter with the SB option, ensure you use the correct circuit

breaker based on the total current rating of your inverter. This circuit breaker

must be located in the utility service panel.

See Table 3-5 on page 41 for maximum recommended breaker sizes.

Loads backed up by the inverter will need to be rerouted from the main service

panel to a sub-panel. This can be done several different ways, depending upon

the installation. Always refer to electrical codes for safe wiring practices.

Always use a properly rated circuit breaker. Depending upon the application,

circuit breakers used to protect the load can be removed from the main service

panel and put into the sub-panel ONLY if the two panels are from the same

manufacturer.

Install a DC disconnect breaker or fuse in the positive battery line. This breaker

protects the DC wiring in the event of an accidental short. Size the breaker in

accordance with the battery cables. Switch this breaker OFF whenever servicing

the batteries.

See DC Disconnect and Overcurrent Protection on page 35 for additional

information and recommended fuse sizes.

Determine all wire routes both to and from the inverter and which knockouts are

best suited for connecting the AC conduits. Possible routing scenarios include:

• AC input wiring from the main utility service panel to the inverter

• AC input wiring from the generator to the inverter (if used)

• DC input wiring from the PV array (wind, hydro, etc.) to the inverter (if used)

• DC input wiring from the batteries to the inverter

• AC output wiring from the inverter to the sub-panel

• Battery temperature sensor cable from the batteries to the inverter (if used)

• Remote control cable to the inverter (if used)

• DC ground from the batteries to an external ground rod

• Load circuit wiring rerouted from the main service panel to the sub-panel

Check for existing electrical or plumbing prior to making cuts in the walls. Cut

holes in the walls at appropriate locations for routing wiring/cables.

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Ux series