11 kw DC-Wallbox


Ambibox has developed the 11 kW DC Wallbox, a DC charger for everyone. With it, electric cars can be charged up to five times faster than at a conventional socket. Due to the wallbox's bidirectionality, electricity can flow in two directions: from the in-house solar system to the car and from there back to the in-house grid if required (vehicle to grid, vehicle to home). Thanks to its intelligent charging management, the electric car can be used as a mobile energy storage device or serve as a buffer for the power grid. 


The 11 kW wallbox is based on the latest power electronics technology with SiC semiconductors, is extremely compact despite its high power, highly efficient, cost-effective, eligible for subsidies and does not require approval. Due to its low weight, it can be easily installed by one person.


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  • Version: DC-Wallbox
  • DC Output power max.: 11 kW
  • AC Input Voltage level: 3 Phases, 400V AC (Europe), 3-ph 480V and 2-ph 240V (US)
  • AC Input voltage tolerance: +- 10% (Static)
  • Power factor: >= 99%
  • Total Harmonic Distortion (THD): <= 5%
  • DC Output voltage: 120 – 500V DC
  • DC Output Current: 30A
  • DC Output Current ripple: <+-3% max. current
  • AC/DC Topology: Active 3 Ph PFC, bidirectional
  • DC/DC Topology: Resonant, isolated, bidirectional DC/DC Converter with ZVS/ZCS full bridge
  • Input Voltage stage: Phase management and DC input
  • Safety and Protection: Galvanic isolation (Basic isolation Input to Output), Rapid discharge DC Bus and DC Output, Functional safety, Over current monitoring, Reverse polarity protection, Temperature monitoring, Self-test
  • Life time: 8 years
  • Standby operation time: 100.000 hours
  • Active operation time: 14.000 hours
  • Charge controller:preferred: Vector vSECC based on Linux
  • Communication to car: CCS, PLC, Control pilot, Proximity Signal
  • Diagnose: Remote, OCCP
  • to Backend/CPO: OCPP2.0, HTTPS (Websockets etc.)*, MQTT* to EMS OCPP, Modbus TCP*, RS485/RS232, SmartHome protocols*
  • Data interfaces: Ethernet (LAN), RS485/RS232
  • Weight: <25kg
  • Dimensions: < 400mm x 250mm x 150mm
  • Operating temperature: -25 to +50°C (without derating)
  • Humidity: Up to 95 %
  • Operation height: 2000m over sea level (>2000m optional)
  • Cooling concept: passive
  • Noise: @1m, full load, <25 dB (A) @ <40 °C
  • IP Class: IP54 enclosure
  • EMC: According to EN61000-6-2 / EN61000-6-3
  • Norms and Standards: IEC Version: IEC61851, SAE1772 / UL Version: UL2202
  • Certifications: CE for European market (optional: UL for US markets)


* on request