ChargePoint Express 250 Operating instructions

Express 250
DC Fast Charging Station
Site Preparation Guide

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Copyright and trademarks
©2013-2018 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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CHARGEPOINT IS NOT LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, PUNITIVE OR CONSEQUENTIAL
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
[e-mail]

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Contents
1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Express 250 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The Express 250 Concrete Mounting Template. . . . . . . . . . . . . . . . . . . 2
Tools and Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2Preparing the Mounting Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Overview of Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Run the Conduit and Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Assemble the Mounting Template. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Install the Mounting Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
AC Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AC and DC Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Example Photo - Site Preparation Complete . . . . . . . . . . . . . . . . . . . . 12
Appendix A: Express 250 Specifications . . . . . . . . . . . . . . . . . . . . . . . . 15

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1
1
Introduction
This document describes how to prepare a project site for the ChargePoint Express 250 DC fast
charging station. Read this section to familiarize yourself with the Express 250 and ensure that you
have all the components, tools, and materials needed to prepare a concrete mounting pad for the
Express 250.
Express 250 Overview
Important: Always check local codes or consult an engineer to ensure that the site is
prepared in compliance with all applicable codes.
Swing arms
Secondary display
Touchscreen
Charging connectors
Area light bar

ChargePoint Express 250
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Before You Begin
•Ensure that the cellular coverage at the installation site is consistently strong. The Express 250
communicates with ChargePoint using the cellular network. A consistently strong cellular signal
is needed before installers can activate the station. Use a cellular signal detection device (such
as a SquidTM) to ensure the signal is -70 dBm or better. If the signal is below -85 dBm, install
repeaters to boost the strength of the cellular signals. Repeaters are often required when
installing the Express 250 in an underground garage or enclosed parking structure.
•Check that the installation location is equipped with service wiring that supports the Express
250’s power requirements. See Electrical Input on page 15.
•Ensure that 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.
•Install a disconnect switch installed per NEC Article 625 Electric Vehicle Charging and Supply
Equipment Systems.
The Express 250 Concrete Mounting Template
Preparing the site requires running conduit and building a concrete mounting pad onto which to
install the Express 250. To build the mounting pad, you will need the ChargePoint Express 250
Concrete Mounting Template (CPE250-CMT). The Concrete Mounting Template provides correctly-
aligned mounting bolts and conduit openings to ensure the Express 250 can be easily positioned and
mounted. The Concrete Mounting Template, available from ChargePoint, includes:
•5/8-11 thread, 12 in long threaded mounting bolts with plastic caps on one end (x6)
•5/8-11 nuts* (x24)
•5/8-11 washers* (x24)
•Printed specification detailing how to position an assembled Concrete Mounting Template into
the concrete.
*You will need only 12 of the 5/8-11 nuts and washers when assembling the Concrete Mounting
Template. The remaining 12 are needed when securing the Express 250 to the mounting pad as
described in the Express 250 Installation Guide.
Important: The Express 250 charging station is tested to IEC 61000-4-5, Level 5
(6 kV @ 3000A) standards. In geographic areas that experience frequent thunder
storms, a supplemental surge protection breaker must be installed at the service panel.

Introduction
3
Tools and Materials
In addition to the Express 250 Concrete Mounting Template (CPE250-CMT) described on the
previous page, you will need:
•Digging tools (shovel, spade, etc.)
•Materials to prepare the form for pouring concrete
•Concrete
•Conduit (see page 5)
•15/16” wrench (x2)
•Pliers to adjust the guide fingers on the conduit opening (if needed)
•Level

ChargePoint Express 250
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5
2
Preparing the Mounting Pad
Follow the instructions in this section to prepare the mounting pad.
Overview of Steps
•Run the Conduit and Cable (page 5)
•Assemble the Mounting Template (page 6)
•Install the Mounting Template (page 8)
Run the Conduit and Cable
The Express 250 accommodates service wiring installed underground and run through conduit in
compliance with local electrical codes. Consult local codes or a project engineer to determine the
grade, quality, and size of the conduit. The CPE250-CMT accommodates service wiring through
the flare, conduit, or locally appropriate wiring method.
The outer diameter of conduit must not exceed the following:
•AC Conduit 2”
•DC Conduit 3”
•Shunt Trip Conduit 3/4”
•Data Conduit 3/4”
Mounting specifications are provided on page 9.
Important: The terminal block on the Express 250 accepts 2 AWG wires only. If using a
larger gauge wire to accommodate a long run, reduce the wire size at the disconnect.

ChargePoint Express 250
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Assemble the Mounting Template
Before pouring concrete, you must assemble and position the mounting template. A top-down
view, and an assembled template, is shown below.
As shown, AC conduit enters the
conduit opening on the left-hand side.
The conduit on the right-hand side is
used for DC conduit.
Follow the steps on the following
pages to assemble the mounting
template.

Preparing the Mounting Pad
7
Step 1 Hold a mounting bolt by its
plastic cap and insert the
bare end into a bolt hole in
the top plate of the
template.
Step 2 Before inserting the bolt
through the bottom plate
of the template, thread a
nut onto the bolt and add
a washer (as shown).
Step 3 Ensure the plastic cap is pressed fully down on the bolt. Then, holding the bottom nut and
washer flush against the top surface of the bottom plate, thread the bolt onto the nut until
the distance between the bottom of the plastic cap and the surface of the top plate is 2”.
Step 4 Repeat Steps 1 to 3 for the remaining five bolts.
Step 5 Secure a second washer and nut onto the bottom of each bolt until flush with the bottom
surface of the bottom plate. Tighten each nut to 50 in-lb.
Add a nut and washer before inserting the bolt
through the bottom plate of thee template
Distance should
be 2”
Press the plastic cap
fully down onto the
bolt
Hold the bottom
washer and nut against
the top surface of the
bottom plate while
adjusting the bolt
Secure a washer and
nut onto the bottom of
each bolt and tighten
to 50 in-lb

ChargePoint Express 250
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Install the Mounting Template
Dig an opening to accommodate the wiring conduit and the concrete mounting pad. For details,
see Mounting Specifications on page 9.
Step 1 Trench and excavate an opening for the foundation that meets local codes and
requirements.
Step 2 Build the form for the foundation.
Step 3 On the template, locate the “FRONT” marking and the conduit guide fingers. The conduit
guide fingers face up.
Step 4 Place the assembled mounting template so that the “FRONT” marking aligns with the
location where the front of the station will be placed.
Step 5 Slide the mounting template over the conduits until the top surface of the template is
positioned 2” (51 mm) below where the top surface of the concrete will be when poured.
The surface of the concrete must align with the bottom of the plastic caps.
•Carefully press the mounting template down onto the conduit to avoid flexing it.
•Make sure that the conduits are plumb.
•Use a level to check that the mounting template is level from front to back and side to
side.
Step 6 Pour the concrete.
Note: Make sure the concrete surface between the conduits is completely level and free of
any irregularities (such as chunks of concrete).
Important: It is critical that the conduits are positioned properly and plumb.
The tolerance where the conduits enter the station is 1/16 in (2 mm).
Important: Before pouring concrete, the template and the conduit must be
secured in place to prevent them from rising or floating out of position while
the concrete is poured and curing.

Preparing the Mounting Pad
9
Mounting Specifications
In the following specifications, measurements are provided in millimeters, with inches provided in
brackets.

ChargePoint Express 250
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AC Conduit

Preparing the Mounting Pad
11
AC and DC Conduit

ChargePoint Express 250
12
Example Photo - Site Preparation Complete
AC Disconnect
2” AC Conduit
Mounting Bolts (X6)

Preparing the Mounting Pad
13
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ChargePoint Express 250
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15
A
Express 250 Specifications
Power Module
Electrical Output
Electrical Input
Dimensions and Weight
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)
Max Output Power 62.5 kW
Output Voltage, Charging 200–1000 VDC
Max Output Current 156A
Max Modules 2
Input Rating 480 (+-10%) VAC, 3-phase, 80A, 60 Hz
Wiring 4 conductors (L1, L2, L3, Ground). Although Neutral is not used in U.S., a
terminal connector is provided.
Required Service Panel
Breaker
100A (North America - 480V)
125A (EU - 400V)
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) + 41 kg (90 lb) for each power module

ChargePoint Express 250
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Interfaces
Safety and compliance
Environmental requirements
Grounding requirements
The 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 an 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 separate system, at the supply transformer.
Max Connector Types Up to 3 different connector types
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)
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
Operational Altitude <3000 m (<9800 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
Enclosure Rating IP44 and NEMA Type 3R