vSECC.single
vSECC.single is a compact DIN rail charging controller for wallbox and single-port charging station manufacturers developing AC or DC charging products. It handles the complete charging communication stack from IEC 61851 and ISO 15118-20 on the vehicle side to OCPP 1.6, OCPP 2.0.1 and OCPP 2.1 toward the backend, so development teams can focus on hardware design and user experience rather than protocol implementation. Designed for slim wallboxes, compact charging cabinets and space-critical installations.
Many Interfaces. One Controller.
vSECC.single bridges separate communication worlds from a single piece of hardware: the vehicle, the backend, the power electronics, and the local user interface. Each layer runs its own protocols, and the controller handles all of them.
Vehicle Communication
vSECC.single manages both AC and DC charging communication from a single controller. For DC, the communication stack covers DIN SPEC 70121, ISO 15118-2 and ISO 15118-20 including Plug & Charge, bidirectional DC BPT and HomePlug GreenPHY PLC over CCS or NACS. AC charging follows IEC 61851-1 and SAE J1772, with high-level communication via ISO 15118-2 and ISO 15118-20 including AC DER for bidirectional AC use cases. A cable lock output for AC charging stations is included.
Backend Communication
vSECC.single connects to charging station management systems via OCPP 1.6, OCPP 2.0.1 (IEC 63584) and OCPP 2.1 (in development) over Ethernet. For fleet applications, communication with value-added service servers is possible via HTTP(S)/FTP, for example to enable bus preconditioning according to VDV 261. Status information about the charging process is published via MQTT, suitable for local displays or monitoring systems. Remote software updates via OCPP keep the controller current with evolving standards.
Station Integration and Power Control
vSECC.single communicates with power electronics over CAN or Ethernet, translating negotiated charging parameters into power electronics commands. A dedicated emergency line provides a safety path independent of the main communication channel. Two temperature sensor inputs (PT 1000) allow continuous thermal monitoring within the charging station. Local station hardware can be connected through discrete and MQTT-based interfaces, including LEDs, RFID readers, displays and payment terminals.
Why vSECC.single?
- Compact: Designed for Slim Chargers
At 22.5 mm wide in DIN rail housing, vSECC.single fits directly into the control cabinet of a wallbox or charging station without compromise on footprint. Spring terminal connectors eliminate the need for mating plugs, reducing assembly cost and the physical depth needed for wiring. The 12 V DC industrial power supply integrates into standard industrial control cabinet designs. vSECC.single +70 °C uses a wider housing at 45.2 mm to accommodate the extended temperature range hardware. - Versatile: AC and DC From One Hardware Platform
One controller covers both AC and DC charging points including CCS and NACS. All major charging standards including IEC 61851-1/-23, SAE J1772, DIN SPEC 70121, ISO 15118-2/-3 and ISO 15118-20 are supported, including bidirectional charging. Fleet-specific capabilities such as VDV 261 bus preconditioning and OCPP reduce integration effort for manufacturers targeting fleet depot and commercial charging applications alongside residential and public use.
- Certified and Compliant: Internationally Certified and AFIR-Ready From One Hardware Design
vSECC.single holds necessary certifications for European, UK, North American and Korean markets. It provides ready-to-use support for ISO 15118 (Plug & Charge), enabling manufacturers to meet upcoming EU requirements. The standard variant of this controller has operating range from -40 °C to +50 °C, while the extended temperature variant handles demanding thermal environments between -40 °C and +70 °C.
vSECC.single and vSECC.single +70°C: Choosing the Right Variant
Standard Variant
Operating ambient temperature from -40 °C to +50 °C. The compact 22.5 mm DIN rail housing and low weight of approximately 148 g make it an ideal choice for standard wallbox and charging station designs, supporting reliable operation at ambient temperatures up to +50 °C.
22.5 mm x 99 mm x 114.5 mm · approx. 148 g
Extended Temperature Variant
Operating ambient temperature from -40 °C to +70 °C. vSECC.single +70 °C is designed for installation environments with elevated temperatures, such as charging cabinets exposed to direct sunlight or thermally demanding industrial conditions. To support these use cases, the housing is wider at 45.2 mm to accommodate the extended temperature hardware.
45.2 mm x 106.7 mm x 115 mm · approx. 366 g
The Software Layer for vSECC.single
The functions of vSECC.single are implemented via the vSECC Software. vSECC Software handles all communication necessary for electrical charging: vehicle communication, backend management, power electronics control and peripheral device integration. The Linux-based system supports remote software updates via OCPP, enabling standard compliance and function extensions over the lifetime of the product.
Charging Standards
All relevant AC and DC charging communication standards supported, including ISO 15118-2/-3, ISO 15118-20 with Plug & Charge and bidirectional charging, DIN SPEC 70121, IEC 61851 and SAE J1772.
Remote Updates
Software updates via OCPP allow standard compliance to be maintained over the product lifetime without hardware changes. A web interface supports device configuration, log file analysis and PLC tracing.
Backend and Fleet
OCPP 1.6, OCPP 2.0.1 (IEC 63584) and OCPP 2.1 (in development) for charging station management. VDV 261 support for fleet bus preconditioning. MQTT for status information delivery to local displays and monitoring.
How Does vSECC.single Fit into the Product Family?
CHARGING STATION CONTROLLER
vSECC
Central communication controller for AC and DC charging systems. Manages vehicle communication, backend (OCPP) sessions, and the interface to power electronics. Supports all major charging standards and AFIR requirements for public infrastructure. Serves as the central control unit in both single-station and shared-PE architectures with vSECC.InPlug and Smart Power Distribution.
AC AND DC WALLBOX CONTROLLER
vSECC.single
Compact DIN rail controller for single AC or DC charging points. Supports IEC 61851, ISO 15118-2/-3, and ISO 15118-20 including bidirectional charging, as well as DIN SPEC 70121 and OCPP 2.0.1. Available in a standard variant (-40 °C to +50 °C) and a +70 °C variant (-40 °C to +70 °C) for thermally demanding environments.
CURRENT SELECTION
SLIMMEST PLUG-ON BOARD FOR WALLBOXES
vSECC.single Board
Compact plug-on board for wallboxes and mobile charging stations. It provides the same charging communication stack, integrated directly into custom-designed electronics. Designed for series production and it enables manufacturers to add charging functionality without adopting a separate DIN rail controller.
For DC fast chargers, HPC systems, and megawatt charging applications, vSECC and vSECC.MCS offer the same proven communication stack in form factors optimized for higher-power station architectures. vSECClib is available for manufacturers who require the charging communication stack on their own hardware platform.
News and Events
Related Products and Topics
vSECC.single Board
Small form factor plug-on board for wallboxes and mobile charging stations. Plugs onto custom-designed electronics and adds AC or DC charging intelligence including bidirectional ISO 15118-20. Series-ready for manufacturers targeting the wallbox market with an existing electronic design.
vSECC Software
The charging communication software layer installed on all vSECC controllers. Covers all charging communication standards, OCPP backend integration, power electronics protocol, VDV 261 fleet preconditioning and remote software update. ISO 15118 support ensures AFIR compliance.
Develop Charging Stations and Wallboxes
Overview of all integration paths for charging infrastructure manufacturers, product selection guidance and protocol coverage across the full vSECC family from compact wallboxes to megawatt charging.
