CAUTION
The installation company is responsible to design and install the
electrical installation according to the local regulations.
3.2.1 Required electrical grid configuration
It is essential that the DC Wallbox 3-phase input variant is installed in the proper electrical grid
configuration. The allowable grid configuration is shown in the figure below.
Electrical grid configuration required for 3-phase, DC Wallbox UL variant (3ø, 480Y/277V input)
NOTICE:
The grid connections shown for the various configurations of the DC Wallbox are
mandatory. Failure to adhere to these instructions may partially or fully void the product
warranty, result in a costly site visit to reconfigure the grid configuration, and/or cause
several site visits for the DC Wallbox commissioning. ABB is not responsible for
scheduling delays and additional costs from not properly planning the installation. If ABB
is contracted to perform the DC Wallbox commissioning, ABB observes the right to charge
additional money for more than one site visit required for the commissioning due to an
initial, improper installation of the DC Wallbox.
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