TERRA DC WALLBOX UL
2020-10-05
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NOTICE:
The grid connections shown for the various configurations of the Terra 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 Terra
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 Terra DC Wallbox com-
missioning, 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 Terra DC Wallbox.
Important steps to ensure project success include:
1.
Identify the grid configuration at the location where the Terra DC Wallbox will be installed. If
the grid configuration available is not okay for use with the Terra DC Wallbox, then determine
how to establish the required grid connection. A transformer solution offered by ABB is avail-
able to derive the required grid configuration when the required grid configuration is not
available. Contact your local ABB sales representative for more details.
2.
Select the 1-phase or 3-phase variant of the Terra DC Wallbox according to Section 1.3 titled
Terra DC Wallbox hardware ordering details based on Step 1 above.
3.
Carefully execute a project plan to ensure the correct variant of Terra DC Wallbox is used on
the project and that the project site’s grid configuration is compatible with the Terra DC Wall-
box.
4.
Verify the actual grid configuration the Terra DC Wallbox is installed in matches the described
criteria during the Terra DC Wallbox commissioning.
3.2.2
Overcurrent protection device
Each variant of the Terra DC Wallbox is recommended to be fed by the circuit breaker or fuse ratings
shown below.
•
3-phase, 480Y/277V Terra DC Wallbox variant: 3-pole, 40A circuit breaker or fuses
3.2.3
Conduit for power input wires
Each variant of the Terra DC Wallbox supports up to a 1-1/4” trade size conduit connection.
3.2.4
Specification for power input wires
The exact size and type of wires used must be defined by the customer and be protected by customer
provided overcurrent protection according to local codes and regulations.
The input terminals for 3-phase UL variants of the Terra DC Wallbox accept a range of wire sizes from 10
AWG to 0 AWG. Wire terminals are rated 75C.
The 3-phase UL variant Terra DC Wallbox requires Three (3) phase wires, One (1) neutral wire, and One (1)
wire for protective earth. (3W+N+G)
All wires for 3-phase variants of the Terra DC Wallbox may connect directly to the ABB provided termi-
nals, with exception to the protective earth wire. The protective earth wire requires for the
installer to
crimp a terminal onto it using the terminal manufacturer’s recommended crimp procedure and tool.