4
•
Enough space is available around the installation pad to use a forklift and other lifting
equipment, unpack crates, remove packing materials, and allow two people to freely move
throughout the area.
Also ensure that these electrical requirements are in place:
•
The appropriate circuit protection, and metering is in place at the installation site.
•
A grounding conductor that complies with local codes is properly grounded to earth at the
service equipment or, when supplied by a separate system, at the supply transformer.
•
A correctly rated, dedicated breaker is installed for each station, per this table:
•
Breakers have shunt trip capability if the site drawing calls for shunt trip wiring.
•
All necessary electrical infrastructure has been completed per local codes and ChargePoint
specifications for 3-phase power plus ground, with properly sized wire at the station. (Neutral is
not required for system operation.)
•
Cellular signal strength is consistently strong to allow installation and station operation. Use a
cellular signal detection device (such as a Snyper, Octopus, or similar) to ensure the signal is -85
dBm or better. (Note that these numbers are negative, so -70 dBm is stronger than -85 dBm,
and -90 dBm is weaker.) If the signal is below -85 dBm, install multi-carrier, multi-band
repeaters to boost signal strength. Repeaters are often required for installations in underground
garages or enclosed parking structures.
•
Paired only:
All four DC copper conductors are installed between stations as follows:
Important:
Remove any concrete that is not level with the rest of the surface, or you
cannot level the Express 250. Use a grinder or a hammer and chisel to remove any bumps
in the concrete.
Nominal Voltage
Max AC Current
Breaker Size
400 V (EU)
96 A
125 A
480 V (N. America)
80 A
100 A (125% continuous load required for N. America)
Voltage Rating
Temperature Rating
Maximum Conductor Size for Terminals
EU non-armored: 600/1000 V
90°C
35 mm
2
EU armored: 600/1000 V
90°C
35 mm
2
multi-core
N. America: 600 V
90°C
2 AWG
Voltage Rating
Temperature Rating
Maximum Conductor Size
for Terminals
Insulation Type
EU non-armored: 600/1000 V
90°C
120 mm
2
XLPE
EU armored: 600/1000 V
90°C
120 mm
2
4-core
XLPE
N. America: 1000 V
90°C
4/0 AWG
XHHW-2
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