Specifications

Wiring - General
975-0581-01-01 3–5
This manual is for use by qualified personnel only
Wiring - General
All wiring methods and materials shall be in accordance with applicable
electrical installation codes, for example the US National Electrical Code ANSI/
NFPA 70, IEC 60364, CENELEC HD 384, or DIN VDE 0100.
The Xantrex inverter has a three-phase output.
Conductor size should have been pre-determined when the conduit was
installed. Prepare the appropriate length conductors for each connection.
Overcurrent Protection
Overcurrent protection for the PV input, AC output, auxiliary AC input and UPS
wiring must be provided by the installer. The value of the overcurrent protection
must be determined by the installer based on the applicable installation codes,
the current involved (see Appendix A, “Specifications”), the wiring size used, and
any other system parameters required by the installation codes.
WARNING: Risk of electric shock, explosion, and arc
flash
The Xantrex inverter enclosures contain exposed conductors and parts
operating at lethal voltage and at high enough energy to create an arc flash.
Electrocution or severe burns may result. The enclosure doors should remain
closed with the latches tightened, except during installation, maintenance or
testing. These instructions are for use by qualified personnel. To reduce the risk
of electric shock or arc flash, do not open any doors or remove any covers unless
you are qualified to do so, are properly equipped with appropriate personal
protective equipment, and have locked out and tagged out all sources of energy
and verified that the inverter is de-energized. Do not open the cabinet doors if
moisture is present (rain or heavy dew).
WARNING: Multiple sources with risk of electric shock,
explosion, and arc flash
The Xantrex inverter is energized from the PV array, from the AC grid, and from
an auxiliary AC source (backed up with a Xantrex UPS for Xantrex GT500 E &
Xantrex GT630 E units with low-voltage ride-through capability). All 3 sources
(4 including a Xantrex UPS) must be disconnected, locked-out and tagged-out,
and all circuits tested to verify that the inverter is fully de-energized, according to
the procedure on page viii, before servicing or maintenance. Opening the AC
and DC disconnect switches on the inverter does not remove all power from the
inverter. Wait 20 minutes for the DC bus capacitors, located within the cabinet, to
discharge after removing power.
CAUTION: Equipment Damage
When connecting external AC wires to the Xantrex inverter, positive phasing
sequence must be maintained throughout the installation process. Refer to the
system schematics in the unit enclosure for proper phasing convention.