ChargePoint Express 250 Operating instructions

Express 250
DC Fast Charging Station
Site Preparation Guide
April 16, 2018
Part Number 73-001247-01(1)

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©2013-2017 ChargePoint, Inc. All rights reserved. This material is protected by the copyright laws of the United
States and other countries. It may not be modified, reproduced or distributed without the prior, express written
consent of ChargePoint, Inc. CHARGEPOINT is a U.S. and European Union registered trademark and service
mark of ChargePoint, Inc. and cannot be used without the prior written consent of ChargePoint.
No accuracy guarantee
Commercially reasonable efforts were made to ensure that the specifications and other information in this
manual are accurate and complete at the time of its publication. However, the specifications and other
information in this manual are subject to change at any time without prior notice.
Warranty information and disclaimer
The Warranty you received with your Charging Station is subject to certain exceptions and exclusions. For
example, your use of, or modification to, the ChargePoint® Charging Station in a manner in which the
ChargePoint® Charging Station is not intended to be used or modified will void the limited warranty. You should
review your warranty and become familiar with the terms thereof. Other than any such limited warranty, the
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implied warranties, including any warranty of design, merchantability, fitness for a particular purposes and non-
infringement, to the maximum extent permitted by law.
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DAMAGES, INCLUDING WITHOUT LIMITATION LOST PROFITS, LOST BUSINESS, LOST DATA, LOSS OF USE, OR
COST OF COVER INCURRED BY YOU ARISING OUT OF OR RELATED TO YOUR PURCHASE OR USE OF, OR
INABILITY TO USE, THE CHARGING STATION, UNDER ANY THEORY OF LIABILITY, WHETHER IN AN ACTION IN
CONTRACT, STRICT LIABILITY, TORT (INCLUDING NEGLIGENCE) OR OTHER LEGAL OR EQUITABLE THEORY,
EVEN IF CHARGEPOINT KNEW OR SHOULD HAVE KNOWN OF THE POSSIBILITY OF SUCH DAMAGES. IN ANY
EVENT, THE CUMULATIVE LIABILITY OF CHARGEPOINT FOR ALL CLAIMS WHATSOEVER RELATED TO THE
CHARGING STATION WILL NOT EXCEED THE PRICE YOU PAID FOR THE CHARGING STATION. THE
LIMITATIONS SET FORTH HEREIN ARE INTENDED TO LIMIT THE LIABILITY OF CHARGEPOINT AND SHALL
APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.
ChargePoint, Inc. 
254 East Hacienda Avenue
Campbell, CA 95008 USA

US and Canada: +1.877.850.4562

[email protected]

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Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Site design recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ChargePoint conduit alignment template kit . . . . . . . . . . . . . . . . . . . . 5
Contractor materials and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preparing the Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Required materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
The CPE250-CMT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Assembling the CPE250-CMT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installing the CPE250-CMT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Wiring conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Contents
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1
1
Overview
This document provides site preparation information for the ChargePoint Express 250 DC fast
charging station (Express 250). Read and refer to this document after the site design is in place.
Swing arms
LED display
LCD touchscreen
Charging
connectors

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Audience
+Site designer or architect:
–Site design recommendations
–Requirements
–The CPE250-CMT
+Civil engineer or county inspector:
–Site design recommendations
–The CPE250-CMT
+Electrical engineer or electrician:
–Site design recommendations
–Conduit wiring
+Construction specialist or materials engineer:
–Requirements
–Preparing the Pad
Important
Always check local codes or consult an engineer to
ensure that the installation complies with all
applicable codes.

Overview
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Site design recommendations
+As the site designer, or architect:
–Ensure adequate cellular coverage to use cell phones at the installation location. Installers
will need to activate the station and enable remote monitoring. If the installation site is
located in an underground garages or an enclosed parking structure, you need to install
cellular repeaters to boost signal strength.
–Check that the station installation locations match the site design plan. In particular, the
prepared locations must be able to support the load capacity of the Express 250. See
Specifications on page 15 for detailed information.
+As the civil or electrical engineer, the county inspector, or the installation specialist:
–The readiness of the mounting pad: The concrete must be completely cured before
mounting the Express 250.
–A grounding conductor that complies to local codes must be grounded to earth at the
service equipment or, when supplied by a separately derived system, at the supply
transformer.

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Requirements
Note
You must order the conduit alignment template kit,
CPE250-CMT, with sufficient lead time before the
site preparation. This kit is not included in the
ChargePoint Express 250 charging station, and must
be ordered separately.
Check that you have the following equipment, tools, and materials before you start the site
preparation.
ChargePoint conduit alignment template kit
The following is a list of parts shipped with the CPE250-CMT template:
+6threaded mounting rods, 12" long, with plastic caps on one end
+24 nuts (extra included)
+24 washers (extra included)
Note
If required, you can order a metric kit from
ChargePoint.
Contractor materials and tools
You will need to bring the following tools to install the mounting template:
+Concrete
+Conduit
+Bollards
+2x 1-1/16" open end wrenches
+Pliers to adjust guide fingers (if needed)
+Level
+Cut resistant gloves to handle the conduit alignment template.

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3
Preparing the Pad
You will need the CPE250-CMT to mount the Express 250 and Express Plus stations. The CPE250-
CMT helps to place conduits and mounting rods, and ensures correct alignment during station
installation.
Note
The CPE250-CMT accommodates service wiring
through the flare, conduit, or locally appropriate
wiring method. AC cabling must have an outer
diameter that is smaller than 70mm (2.5”), and DC
cabling must have an outer diameter that is smaller
than 90mm (3.5”).
This chapter provides information for the following topics:
+Required materials
+The CPE250-CMT
+Installing the CPE250-CMT
+Conduit wiring
Important
Always check local codes or consult an engineer to
ensure that the installation complies with all
applicable codes.

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Required materials
Check the following:
+ChargePoint conduit alignment template kit
+Contractor materials and tools
The CPE250-CMT
You must assemble and place the CPE250-CMT in the foundation before pouring the concrete
pad.
The figure provides a high level description of the steps to assemble the template:
Step 1
Step 3
Step 2
Step 4
Step 2
Step 1
Step 3
See Assembling the CPE250-CMT for a detailed description about how to complete Step 1.
through Step 3.

Preparing the Pad
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Assembling the CPE250-CMT
Important
Make sure to wear the cut resistant gloves when
handling the CPE250-CMT, to protect your hands
from the sharp metal edges.
1.
Insert the bare ends of the 6 mounting rods into the 6 bolt holes as shown in the figure.
123
456

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2.
2a. Add a nut and a washer to
each mounting rod before you
insert them into the bottom
plate of the template
2 in
2b. Check that each rod protrudes about 2 inches from the bottom of the template.
3.
3a. Place the second washer and nut on each rod against the bottom of the CPE250-CMT.
3b. Tighten all 6 nuts to roughly 5 Nm (50 in-lb).
You can now install the CPE250-CMT.

Preparing the Pad
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Installing the CPE250-CMT
See the following topics before you install the CPE250-CMT:
+Contractor materials and tools
+Specifications
Be sure to consult local codes or a civil engineer to determine the grade, quality, and the size of
conduit.
1. Trench and excavate an opening for the foundation that meets local codes and requirements.
2. Build the form for the foundation.
Important
It's critical that the conduits are positioned properly
and plumb, the tolerance where the conduits enter
the station is 2 mm (1/16").
3. Find the “FRONT” marking and place the CPE250-CMT to align with the front of the station.
AC breaker shunt trip (optional) max
OD 28mm
AC power input DC power input
Communications
port max OD 28mm
4. Slide the CPE250-CMT over the conduits. The top surface of the template will be 51 mm (2")
below the concrete surface.
aPress the CPE250-CMT down the conduit, but avoid flexing it.
b. Make sure that the conduits are plumb.
c. Check that the CPE250-CMT is level front to back and side to side.
Important
Ensure that the conduits are supported and
precisely held in position while the concrete is
poured and curing.

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5. Pour the concrete. The surface of the concrete will be at the bottom of the plastic caps.
Note
Make sure the concrete surface between the shunt
trip and AC conduit is level with the rest of the
surface and does not have any concrete blobs.
6. Leave the plastic caps until the concrete has cured and remove before installing the station.
Conduit wiring
The Express 250 accommodates service wiring through conduits installed underground. The figure
shows views of the template with the conduits
CPE250-CMT installed in concrete
Top view of CPE250-CMT

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A
Specifications
This appendix contains reference information about product specifications.
Power Module
Constant Max Power 31.25 kW
Max Output Current 78A
Dimensions 760 mm x 430 mm x 130 mm
(2 ft 6 in x 1 ft 5 in x 5 in)
Weight 38 kg (84 lb)
Electrical
Max Output Power 62.5 kW
Output Voltage, Charging 200–1000 VDC
Max Output Current 156A
Max Modules per Station 2

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Station
Table 1 through Table 4 lists specifications of Express 250.
Table 1 Station Electrical Input (US)
Input Rating 480 (±10%) VAC, 3-phase, 80A, 60 Hz
Wiring 4 conductors (L1, L2, L3, Ground)
Table 2
Input Rating 380–415 VAC, 3-phase, 105–80A, 50Hz
Wiring 3 conductors (L1, L2, L3) and Ground. Neutral is
not used, a landing terminal is provided.
Station Electrical Input (Europe)
Table 3 Station Dimensions
Dimensions 2230 mm x 1120 mm x 420 mm
(7 ft 4 in x 3 ft 8 in x 1 ft 4 in)
Weight 250 kg (551 lb)
Table 4 Station Interfaces
Max Connector Types Up to 3 different connector types per station
Supported Connector
Types
+CCS1 (SAE J1772™ Combo)
+CCS2 (IEC 61851-23)
+CHAdeMO
Cord Length 3.8 m (12.5 ft)
Driver Interaction Display Full-color 10-inch LCD display for driver
interaction
Top Display Full-color 20-inch LED display for notifications
Authentication +RFID: ISO 15693, ISO 14443, NFC
+Plug and Charge: IEC 15118-1
+Remote: Mobile and in vehicle (if supported
by vehicle)

Specifications
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Safety
Express 250 meets the requirements of the compliance agencies as listed in the following table:
Table 5 Safety and Compliance
Safety Compliance For U.S., complies with UL 2202, UL 2231-1, UL 2231-2
For Europe, complies with IEC 62196, IEC 61851,
CE marking
EMC Compliance U.S.: FCC part 15 Class A
EU: EN55011, EN55022 and IEC61000-4
Environmental
Express 250 has an IP44 and NEMA Type 3R electronics enclosure rating.
Table 6 Environmental Requirements
Operational Altitude <2000 m (<6500 ft)
Operating Temperature -30° C to 50° C (-22° F to 122° F)
Storage Temperature -40° C to 50° C (-40° F to 122° F)
Operating Humidity Up to 95% @ 50° C (122° F) non-condensing
Grounding
Express 250 must be connected to a grounded, metal, permanent wiring system. An equipment-
grounding conductor must be run with circuit conductors and connected to equipment-grounding
terminal or lead on the Express 250.
A grounding conductor that complies to local codes must be grounded to earth at the service
equipment or, when supplied by a separately derived system, at the supply transformer

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