Schlieren (ZH), February 24, 2026 – Megawatt charging is considered a key technology for the electrification of heavy-duty vehicles and machines. While charging parks and megawatt charging stations are attracting most of the attention, the vehicle-side implementation often remains in the background. SUNCAR AG, based in Switzerland, is closing this gap with a DC fast-charging interface for use in vehicles, which is now available. It simplifies the integration of MCS-based megawatt charging technology for vehicle manufacturers.
Infrastructure alone is not enough
The Megawatt Charging System (MCS) is being developed as an international standard for ultra-fast charging of heavy-duty vehicles, construction machinery and other high-performance machines. So far, discussions often focus on charging infrastructure outside the vehicle. In this area, the market already offers various solutions. However, for practical deployment in the field, equally powerful, safe and standards-compliant solutions are also required on the vehicle side.
Without suitable vehicle-side interfaces, maximum charging power cannot be implemented reliably. Vehicle manufacturers must therefore integrate high-voltage components, protection and monitoring systems, and the necessary communication capabilities into their vehicles to enable MCS charging.
Vehicle-side DC fast-charging interfaces as an enabler
SUNCAR has extensive experience in the development and production of vehicle-side charging interfaces based on the Combined Charging System. With the MEGAFLOW1500, the company now introduces a vehicle-side DC fast-charging interface that supports vehicle manufacturers in integrating MCS charging technology. The solution was designed for use in electric vehicles and machines and combines key functions for high-power charging according to the MCS approach in a modular system.
The DC interface includes the charging inlet, high-voltage switching and safety devices, measurement and monitoring functions, and internal communication functions with the vehicle control system. Depending on the configuration, it supports passive or active cooling and is designed for demanding environmental conditions in off-highway and commercial vehicle applications.
Optionally, the interface can be equipped with a charging controller that supports MCS communication in accordance with relevant standards and manages the coordination between vehicle and charging infrastructure.
Simplified integration for vehicle manufacturers
With this interface, SUNCAR supports vehicle manufacturers in integrating MCS charging technology into development, pilot, or production vehicles. The vehicle-side DC fast-charging interface provides the technical foundation for implementing MCS charging safely, with monitoring and in compliance with standards.
“Megawatt charging discussions often focus on charging parks and infrastructure. In practice, however, the vehicle side determines whether the technology can actually be used,” says Stefan Schneider, Managing Director of SUNCAR AG. “With the MEGAFLOW1500, we provide vehicle manufacturers with a solution that significantly simplifies the entry into MCS charging technology and supports different vehicle concepts.”
Contact
Stefan Schneider
Geschäftsführer
Tel. +41 44 542 05 00
press@suncar-ag.com
Images
Image material can be downloaded here:
Copyright
You may use the images freely with the reference ‘© SUNCAR AG’.
Technical Data
MEGAFLOW1500 – Vehicle-side DC fast-charging interface
System voltage
Up to 1000 VDC
Current
1500 A (with active cooling)
Supply voltage
12 / 24 / 48 V
System weight
45 kg
Ambient temperature
-40 – +85 °C
Protection class
IP65
Dimensions (L x B x H)
585 x 356 x 210 mm
Standards and Norms
IEC 61439-1,-2 (General)
IEC 60664-1 (Electrical)
ISO 16750 (Environmental)
Features
Inlet: MCS-Inlet or EMV cable glands
Outlet: EMV cable glands
HV contactors
Mainboard (Interlock switch, temperature sensor)
Galvanically isolated HV current and voltage measurements
Pressure equalization element
Active cooling (optional)
Optional charging controller
MCS communication according to IEC 61851-23-3 and ISO 15118-20
CAN communication with vehicle control unit
Inlet according to IEC TS 63379
Derating based on inlet temperature
Control of connector locking mechanism and LEDs
About SUNCAR
SUNCAR AG, based in Oberbüren (SG), is a Swiss technology and development company specialising in the electrification of commercial, municipal and off-highway vehicles. The company emerged from an ETH focus project and was founded in 2015 as a subsidiary of Huppenkothen Baumaschinen AG. SUNCAR has its own research and development centre as well as a production facility in Schlieren (ZH).
SUNCAR was responsible for the world’s first battery-powered electric excavator in 2014. To this day, the company continues to work on innovations that drive decarbonisation and accelerate the energy transition. To this end, the company employs 52 45 staff in the fields of electronics, software and mechanical development, as well as in its own product division. Its portfolio includes high-voltage distribution systems, DC fast-charging interfaces, and assistance and monitoring systems. As a contract developer, SUNCAR has also developed a wide range of commercial and municipal vehicles for its customers.
