120kW High-Power Wallbox DC-DC EV Charger
DC-Coupled Fast Charging Station with Direct DC Input
The Ampernext 120kW wallbox DC-coupled EV charger is a high-power fast charging solution designed for direct DC input environments.
Built around a modular DC-DC power conversion platform, this charger eliminates unnecessary AC conversion stages when operating from DC sources, improving overall system efficiency and simplifying infrastructure design.
While the primary focus is high-power DC-DC charging, the system is particularly well suited for installations where EV charging operates alongside:
Solar PV generation
Battery storage
Microgrid environments
Smart energy management systems
This makes it a strong candidate for renewable-integrated EV infrastructure without requiring complex additional conversion stages.
Technical Specification
Charging modes, connectors, cable
Charging Mode
DC fast charging, CCS, Mode 4, up to 1000V
Connector type
CCS1, CCS2, NACS (selectable)
Cable length
5m
Physical and environmental
Enclosure rating
IP 54
Mounting
Wallbox
Cooling
Forced ventilation
Operating temperature
-25 °C .. +55 °C
Connectivity, control, energy management
Control
HMI, RFID, OCPP
Connectivity
10/100 Mbps Ethernet, Wi-Fi, 3G/LTE
OCPP
1.6J
HMI
True color 10" display
Energy management
Limiting output current & power
External dynamic control possibilities
DC-Link sensing and prebuilt functions
DC input
Supply Voltage
680 Vdc .. 920 Vdc
DC output
Output power
120 kW (over 600Vdc)
Output voltage range
200 Vdc .. 1000 Vdc
Output current range
1 A .. 200 A
Conversion efficiency
> 98.5 %
Safety & standards compliance
Protections
Galvanic insulation between the input and the output
Overvoltage and undervoltage protections
Overcurrent and short circuit protections
Overtemperature protections and temperature power derating
Standards compliance
CE, EN/IEC 61851, DIN 70121, ISO 15118