Electrical Design

Electrical Requirements

At a minimum, each Level 2 charging station, either single or dual port, requires the following:

• A dedicated single phase electrical circuit from 40 A to 80 A

• A new circuit breaker at the electrical panel

• Conductor wiring and circuit protection sized in accordance with all applicable codes

Consequently, a CP6000 charging station with two charge ports typically requires two power input circuits, one circuit per port. There may be situations where both ports share a main single circuit. If power capacity is limited at a site or to reduce costs for electrical infrastructure, consider ChargePoint Power Management options for power sharing at the circuit level, panel level, transformer, or site level.

The CP6000 charging stations are available with a maximum amperage of either 50 A or 80 A.

• If the charging station allows a maximum of 50 A, Power Select current options include 16 A, 24 A, 32 A, 40 A, 48 A, and 50 A.

• If the charging station allows a maximum of 80 A, Power Select current options include 16 A, 24 A, 32 A, 40 A, 48 A, 50 A, 56 A, 64 A, 72 A, and 80 A.

Power Share allows a dual-port station to share power from a single circuit across two ports, adjusting power depending on whether one or both are charging. Standard wiring uses an independent circuit for each port. Power Share can be used in combination with Power Select.

Refer the CP6000 datasheet at ChargePoint Product Reference Documentation for information about the following:

• Electrical input

• Electrical output

• Mounting and functional interfaces

• Safety and connectivity features

• Safety and operational ratings

Additional Electrical Considerations

In addition to the minimum electrical requirements, consider the following factors to ensure a safe and compliant installation:

• The charging stations are AC electrical vehicle (EV Electric Vehicle) supply equipment and are permanently connected to AC networks.

• Evaluate existing electrical infrastructure to determine if the existing utility service and electrical panel capacity is sufficient.

• Ensure appropriate electrical wiring, over current circuit protection, and metering, if required, is in place.

• Identify costs for any necessary upgrades and/or a new dedicated electrical panel.

• ChargePoint recommends using a licensed electrician to evaluate available capacity and identify any upgrades that may be required.

• If a dedicated EV Electric Vehicle electrical panel is required, choose a panel location in close proximity to the charging stations.

• Determine raceway or conduit runs for electrical wiring from the electrical panel.

General Wiring Considerations

Ensure that the installation location is equipped with service wiring that supports the charging station’s power requirements.

Conduit and wire size are determined based on the length of runs from the electrical panel to the station location. Service wiring must be run through conduit to comply with local electrical codes. Consult national and local codes or a project engineer to determine the grade, quality, and size of the conduit or cable.

Attach the conduit with a listed adapter. Use a sealing method that meets all applicable code requirements.

The CP6000 Concrete Mount Kit accommodates service wiring through the flare, conduit, or locally appropriate wiring method. Visit Pedestal Mount Concrete Preparation for more information.

For full product specifications, refer to the CP6000 Datasheet.

Wall Mount Considerations

• CP6000 wall mounted charging stations use surface mount wiring.

• When pulling electrical wiring for wall mount stations, the conduit and wire must be brought to the location where the stations will be mounted. Flex conduit is typically used to bring the wire to the station. Wiring is brought in through knock outs in the bottom of the charging station.

Pedestal Mount Considerations

• CP6000 pedestal mounted charging stations typically require service wiring installed underground to enter through the bottom of the station.

• When pulling electrical wiring for CP6000 pedestal mount, ensure at least 1.5 m (5 ft) of wire remains above grade.

Conduit

The outside diameter of conduit must not exceed the sizes called out in the pedestal mounting template: 95 mm (3.74 in). Conduit stub-ups must measure between 152 mm (6 in) and 590 mm (23.25 in) above grade.

Conduit stub-ups must not extend higher than 600 mm above ground level.

Electrical Supply Requirements

Wiring must be sized in accordance with all applicable codes for continuous load devices. The main standard for cable size is based on the appropriate National Electrical Code (NEC National Electric Code) in the United States and Canadian Electrical Code (CEC) in Canada. The terminal block supports conductors up to 2/0 AWG American Wire Gauge (70 mm²) in the United Stations and 1/0 AWG American Wire Gauge (50 mm²) in Canada.

To ensure reasonable efficiency of operation, ChargePoint recommends that branch circuit conductors be sized to limit voltage drop to no more than 3%, and that the combined voltage drop for feeder and branch circuits not exceed 5%.

When planning multiple EV Electric Vehicle charging stations, it is best practice to separate non-continuous from continuous loads, with all branch circuits for EV Electric Vehicle charging on a dedicated electrical panel assembly with adequate circuit breakers. When sizing new electrical panels dedicated for EV Electric Vehicle charging, all branch circuits must support continuous load.

CP6000 charging stations are designed for connection to and operation on rated voltages of 208 V or 240 V (phase to phase) at 60 Hz. Source must have neutral bonded to ground to establish 120 V phase to ground.

Port Capacities and Breaker Ratings

Port Capacity	Breaker Rating
80 A/port	100 A breaker per port
48 A/port	60 A breaker per port
40 A/port	50 A breaker per port

Be aware of these requirements before installing the charging station:

• CP6000 charging stations comply with Class B.

• The CP6000 is Class I grounded equipment and must be grounded.

Consult your electricity grid operator regarding requirements for local regulations. Depending on the desired rated power, the installation of the charging station may require registration with and approval by your electricity grid operator.

Grounding Requirements

CP6000 charging stations must be connected to a grounded, metal, permanent wiring system. An equipment-grounding conductor must be run with circuit conductors and connected to an equipment-grounding terminal on the charging station.

A grounding conductor that complies with applicable codes must be grounded to earth at the service equipment or, when supplied by a separate system, at the supply transformer, or may be grounded to an earth electrode. Ensure the grounding conductor complies with all applicable codes.

Connect to these Systems

• 120/240 V AC, 1Ø Bonded Neutral

  Station is connected to L1 and L2

  Neutral is not used

  

• 120/208 V AC, 3Ø Wye Bonded Neutral

  Station may be connected to any two lines

  Neutral is not used

  

• 120/240 VAC, 3Ø Delta Center tap grounded Bonded neutral

  Station must be connected to L1 and L2 only. Do not connect any part of the system to L3 Neutral is not used

  Not recommended for new construction

  

Do not Connect to these Systems

• 208 V AC 3Ø Wye, ungrounded

  Floating Neutral

  Voltage of either line to ground is undetermined

  Neutral is not grounded

  

 

• 120/240 V AC 3Ø Delta, corner-grounded

  Voltage of any line is not 120 V nominal relative to ground

• Any system where the center point of the AC power source is not grounded.