AC charging controllers for smart charging stations and home chargers
The scalable mode 3 charging controllers CHARX control modular form the heart of a smart charging infrastructure. The open Linux platform enables sector coupling, customer-specific IoT applications and smart services. Regular, free updates ensure cybersecurity and provide new functions such as bidirectional charging and plug-and-charge. Simple implementation of calibration law and professional support services round off the offering.
A brief introduction: Our AC charging controllers in the video
Your advantages in practice
CHARX control modular is the heart of smart charging stations
Your advantages in practice
Paving the way for sector coupling
Coupling the various sectors and players such as energy grids, buildings, local producers, charging stations and electric vehicles is the key to sustainable and integrated e-mobility that relies on renewable energy. This includes, for example, the integration of vehicles into the smart grid or smart home, efficient and user-friendly business processes as well as device and patch management for charging park operators. All of these services require secure communication based on different protocols. With the new CHARX control modular controller generation, its open Linux platform for implementing customer software and Phoenix Contact’s many years of application expertise, you are ideally prepared for these challenges.
Your advantages in practice
Scale and expand freely
Your advantages in practice
Limitless networking and control
Thanks to support for all common communication protocols such as ISO 15118, OCPP, Modbus/TCP, MQTT and REST, your charging points communicate smartly and securely with connected vehicles as well as with backend, building and network control systems. Convenient and dynamic load management for your charging park can be implemented in a variety of ways, e.g. by setting the current value via Modbus/TCP. With the help of a WLAN USB adapter, you can use the charge controller as a WLAN client or WLAN access point, which enables the wireless use of existing interfaces and simplifies commissioning. The controller modules can be configured and your charging park controlled conveniently in the Webbowser via web-based management (WBM). Remote access and remote maintenance is also possible via OpenVPN and an MQTT bridge.
Your advantages in practice
Simply implement calibration law
CHARX control modular meets all requirements for calibration law-compliant charging. The new calibration law concept also considerably simplifies the implementation and certification of your calibration law solution: The charge controller serves as an interface between the signing energy meter (measuring capsule) and the OCPP backend. It passes on the data relevant to calibration law in OCMF format (Open Charge Metering Format), but does not process it. This eliminates the need for complex software tests on the controller, which significantly shortens the certification process. Updates to the controller software do not jeopardize the validity of the calibration law certificate, which saves you time-consuming recertifications. In addition, our solution is not tied to a specific energy meter model – this allows you to design your charging solution flexibly. The OCMF-capable MID energy meters Iskra WM3M4C, Bauer BSM-WS36A and EMH iML e-moc are currently supported. Other models can be added on request.
Your advantages in practice
Cybersecurity included
New EU regulations and directives are increasing the requirements for the IT security of charging infrastructure: from August 2025, the Radio Equipment Directive (RED) in accordance with EN 18031 will be mandatory. It requires the protection of charging points with wireless connections such as RFID, WLAN or cellular communication against unauthorized access. This affects smart and app-controlled home chargers, for example. The Cyber Resilience Act (CRA) will supplement this with comprehensive security requirements for networked devices from December 2027. Charging points are therefore considered digital products. Their manufacturers must ensure security updates, vulnerability management and CE marking. But don’t worry: we keep your charging controller compliant and secure with regular and free security updates to minimize the risk of cybersecurity attacks and tampering. You build your charging station – we make sure it runs safely.
Your advantages in practice
Future-proof thanks to regular updates
Free online product help
CHARX help provides you with free online documentation for our CHARX control modular AC charging controllers, which is continuously updated and expanded. It serves as an interactive manual to help you with specific questions about our products.
First-class support at fair prices
Professional advice and engineering support
From first to third level support, you as a customer receive individual and personal support from trained experts from our company:
- Professional ticketing system for uncomplicated and fast support
- Advice on Bill of Material (BOM) and wiring plan
- Support with the configuration of the charging controller
- Support with the calibration law certification of your charging solution
- Creation of customer-specific applications
Successfully implemented projects
Examples of customers who are already using CHARX control modular successfully
The control classes in comparison
All features and functions at a glance
The control classes in comparison
The compact 1000 class
- Width: 18.8 mm
- Possible operating modes: Standalone, Client
- Interfaces for charging socket/charging cable, contactor, RFID reader, energy meter, residual current monitoring, unlocking in the event of mains failure, configurable I/Os
- Charging in compliance with calibration law with OCMF support ¹⁾
¹⁾ Only supported with 1000 class in combination with 3000 class.
The control classes in comparison
The smart 3000 class
- Width: 37.6 mm
- Possible operating modes: Standalone, Client,
Server (for managing up to 48 charging points) - Interfaces for charging socket/charging cable, contactor, RFID reader, energy meter, residual current monitoring, unlocking in the event of mains failure, configurable I/Os
- Charging in compliance with calibration law with OCMF support
- Linux platform, web-based management, dynamic load management, Ethernet, USB-C, OCPP 1.6J, Modbus/TCP, MQTT, REST, OpenVPN
- ISO 15118 and 4G/2G cellular communication (optional as article variants)
- WLAN (optionally retrofittable via USB adapter)
Suitable accessories
Add further functions depending on your requirements
Scalable for every application
From a single home charger to a parking garage with 48 charging points
Software updates for AC charging controllers
- Software version: 1.8.0
Implementing calibration law even more efficiently now
The AC charge controllers of the CHARX control modular family form the heart of an intelligent charging infrastructure. With software release 1.8.0, the calibration law concept has been fundamentally revised, significantly shortening the certification process for your charging solution.
- Software version: 1.7.0
More connectivity, convenience and safety
The AC charging controllers of the CHARX control modular family form the heart of an intelligent and sustainable charging infrastructure. With software release 1.7.0, the 3000 class becomes WLAN-capable and receives additional features and improvements for greater convenience and safety.
Do you have any questions?
Please do not hesitate to get in touch with us. We look forward to receiving your inquiry and exchanging information about our e-mobility.
