A CCS2 DC charging station is a European standard DC fast charger that uses the CCS2 connector to charge electric vehicles. It combines power electronics, communication control, safety protection, user interface, backend communication, and charging cable systems.
A complete CCS2 DC charger is not just a power supply. It is a system that must coordinate electrical control, SECC communication, EVSE control, power module output, metering, safety protection, and platform operation.
Application Scenarios
CCS2 DC charging stations are widely used in:
Scenario Typical Requirement
Public charging station High reliability and OCPP backend
Highway charging site High power and fast charging
Parking lot Medium-power DC charging
Fleet depot Stable operation and centralized management
Energy storage charging system DC charging combined with battery storage
OEM / ODM charger project Customized appearance, power, and control system
Basic System Architecture
AC Grid Input
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AC Distribution / Protection
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DC Power Modules
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DC Output Contactor / Fuse / Insulation Monitoring
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CCS2 Charging Cable and Connector
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Electric Vehicle
Communication Architecture
EV
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| EVCC
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| PLC communication
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SECC
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EVSE Controller
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| CAN / RS485 / Ethernet / Internal Protocol
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Power Module / Meter / HMI / Card Reader / Backend
Technical Flow
A typical CCS2 DC charging process includes:
User plugs the CCS2 connector into the EV.
Charging station detects CP / PP signal.
SECC establishes PLC communication with EVCC.
Charger and vehicle select communication protocol.
Vehicle sends charging requirements.
Charger performs safety checks.
Power module prepares DC output.
Pre-charge process starts.
Main DC contactor closes after voltage matching.
DC charging starts.
EV and charger continuously exchange current, voltage, SOC, and status.
Charging stops when the EV, user, or charger sends a stop command.
Charger safely shuts down output and uploads records to backend.
Core Components Table
Component Function
CCS2 connector and cable Physical charging interface
SECC Handles CCS communication with EV
EVSE controller Controls charging logic and charger operation
DC power module Converts AC input to DC output
Insulation monitor Checks DC insulation safety
DC contactor Controls high-voltage output
Energy meter Measures charging energy
HMI screen User operation interface
RFID / payment module User authentication
OCPP module Backend platform communication
Cooling system Supports stable operation under high power
Cabinet and protection devices Mechanical and electrical protection
CCS2 DC Charger vs AC Charger
Item CCS2 DC Charger AC Charger
Power conversion Inside charger Inside vehicle onboard charger
Charging speed Faster Slower
Connector CCS2 Type 2
Communication CP / PP + PLC + SECC CP / PP, optional advanced communication
Typical power 20kW to 360kW+ 7kW to 22kW
System complexity High Lower
Application Public fast charging, fleet, highway Home, workplace, destination charging
Standard Protocol Explanation
A CCS2 DC charging station may involve:
Standard / Protocol Function
IEC 61851 Basic EV charging control and safety
DIN SPEC 70121 Basic CCS DC charging communication
ISO 15118-2 Plug & Charge and smart charging
ISO 15118-20 Advanced V2G and bidirectional charging
OCPP 1.6 / 2.0.1 Charger-to-backend communication
IEC 62196 Connector and charging interface requirements
EMC / safety standards Market access and certification
FAQ
Q1: What is the most important part of a CCS2 DC charger?
The system integration is the most important. A reliable charger requires the correct matching of power modules, SECC, EVSE controller, safety devices, connector, software, and backend platform.
Q2: Can a CCS2 DC charger support Plug & Charge?
Yes, but it must support ISO 15118, certificate handling, backend coordination, and compatible EVs.
Q3: What power level should I choose?
It depends on your target market. A 20kW to 40kW DC charger is suitable for small projects or product validation. A 60kW to 180kW charger is common for commercial public charging. Higher power is suitable for highway or fleet applications.
Q4: Do I need OCPP?
For public or commercial charging stations, OCPP is usually necessary because it connects the charger to the operation platform.
Share Charging Project Capability
Share Charging provides complete CCS2 DC charging station solutions for overseas customers. We can support customers from product definition to system integration and delivery.
Our project support includes:
CCS2 DC charger solution design
SECC and EVSE controller integration
Power module matching
Charging cable and connector selection
OCPP platform communication
DIN 70121 / ISO 15118 protocol support
Factory testing and charging process validation
OEM / ODM product customization
Complete BOM and wiring guidance
Sample development and batch production support
