ChargePoint Power Block Design Manual page 39

room is distant, out of line of sight or has restricted access. For North America installations, refer to
disconnect switch requirements per NEC Article 625, "Electric Vehicle Charging and Supply Equipment
Systems".
Transformer Configuration
Refer to the following tables to configure electrical service.
North America
Input Rating 480 VAC, 3-phase, 260 A, 60 Hz
Electrical Service 277/480 3-phase plus ground,
Configuration grounded WYE (Y) configuration*
Product 3-phase 480 plus ground (neutral not
Connection used)
Harmonic Current K factor 4
Rating
*Delta (floating or grounded) is not supported.
Grounding Requirements
The Power Block must be connected to a grounded, metal, permanent wiring system.
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North America: A service ground conductor must be run with circuit conductors and
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connected to an equipment-grounding terminal on the Power Block.
Europe: Use TN-S or TN-C-S configurations. TT is not recommended because it requires
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Residual Current Devices (RCD).
Ensure a grounding conductor that complies with local codes is properly grounded to earth at the
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service equipment or, when supplied by a separate system, at the supply transformer.
The Power Block must be connected to a grounded, metal, permanent wiring system. An equipment-
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grounding conductor must be run with circuit conductors and connected to an equipment-
grounding terminal or lead on the Power Link 2000.
All charging components must be bonded to one another in sequence: either Power Block to Power
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Link 2000, or Power Block to Power Hub (if used) to Power Link 2000.
Some regions also require a grounding rod to be installed adjacent to each component. Check local
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regulations to ensure compliance.
Grounding Requirements
Europe
400 VAC, 3-phase, 310 A, 50 Hz
230/400, 3-phase plus ground,
grounded WYE (Y) configuration*
3-phase 400 plus protective earth
(neutral not used)
K factor 4
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