Installation manual

Wiring - General
152936 3–7
This manual is for use by qualified personnel only.
Wiring - General
All wiring methods and materials shall be in accordance with the National
Electrical Code ANSI/NFPA 70, European Requirements, as well as all state and
local code requirements (for example, DIN / VDE). When sizing conductors and
conduits interfacing to the Xantrex GT250 E, both shall be in accordance with the
National Electric Code ANSI/NFPA 70, European Requirements, as well as all
state and local code requirements (for example DIN / VDE).
The model Xantrex GT250 E 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.
WARNING: Shock Hazard
The Xantrex GT250 E Enclosures contain exposed high-voltage conductors. The
Enclosure doors should remain closed with the latches tightened, except during
installation, maintenance or testing. These servicing instructions are for use by
qualified personnel who meet all local and state code requirements for licensing
and training for the installation of Electrical Power Systems with AC and DC
voltage to 880 volts. To reduce the risk of electric shock, do not perform any
servicing other than that specified in the installation instructions unless you are
qualified to do so. Do not open the cabinet doors if extreme moisture is present.
WARNING: Lethal Voltage
In order to remove all sources of voltage from the Xantrex GT250 E, the incoming
power must be de-energized at the source. This may be done at the main utility
circuit breaker and by opening the AC Disconnect and the DC Disconnect
Switches on the Xantrex GT250 E
. Review the system configuration to determine
all of the possible sources of energy. In addition, allow 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 GT250 E, positive phasing
sequence must be maintained throughout the installation process. Refer to the
system schematics in the unit enclosure for proper phasing convention.
Important: Take care to keep the wire bundles away from any sharp edges
which may damage wire insulation over time. Consult the European Standards
(for example, DIN/VDE) and NEC ANSI/NFPA 70 Code Book to ensure code
compliance.