ChargePoint Express 250 - Wiring for Standalone Stations; Wiring for Paired Stations

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Wiring Requirements for Standalone Stations
For full product specifications, refer to the Express 250 Data Sheet. Using that data, ensure that the
installation location is equipped with service wiring that supports the Express 250’s power
requirements:
• Neutral conductor as required by region (a Neutral connection is not required for equipment
operation and the terminal is provided for convenience only)
• Shunt trip wiring: size 0.08 to 2.5 mm² (28 to 14 AWG), fine stranded or solid
• AC conductors (L1, L2, L3) and ground per the following specifications:
Additional Wiring Requirements for Paired Stations
For stations that will be installed as Paired, follow all AC wiring requirements above as well as the
following additional wiring.
Note: Be sure to acquire, or alert the installer to acquire, lugs in advance of the site visit. Contact
ChargePoint in advance if help is required to obtain lugs.
• Ethernet wiring for DC:
• Minimum of CAT5e or better
• Outdoor or plenum rated wiring
• Maximum run length of 100 m (328 ft)
• Leave 3.2 m (10.5 ft) of wire above grade at each end
• Field crimp using straight-through pattern 568B
Important: The AC terminal blocks on the Express 250 accept a maximum wire size of 35
mm
2
(2 AWG) solid or stranded wires. If using a larger gauge wire to accommodate a
long run, reduce the wire size at the local external disconnect.
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
NA: 600 V 90°C 2 AWG
Important: The DC terminal blocks on the Express 250 can accept a maximum wire size of
120 mm
2
(4/0 AWG). Check site plans and local code for site-specific requirements.