SUNCAR AG Launches Vehicle-Side Megawatt Charging Interface
Schlieren (ZH), February 24, 2026 – Megawatt charging is considered a key technology for the electrification of heavy-duty commercial vehicles and machinery. While charging parks and megawatt charging stations are in the spotlight, the vehicle-side implementation often remains in the background. SUNCAR AG, based in Switzerland, closes this gap with a DC fast-charging interface for use in vehicles, now available. It facilitates 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 commercial vehicles, construction machinery, and other high-performance machines. Currently, discussions often focus on the charging infrastructure outside the vehicle. The market already offers various solutions in this area. However, for practical field deployment, equally capable, safe, and standards-compliant solutions on the vehicle side are required.
Without suitable vehicle-side interfaces, maximum charging power cannot be reliably implemented. Vehicle manufacturers are therefore required to integrate high-voltage components, protection and monitoring devices, as well as the necessary communication into their vehicles to enable MCS charging in the first place.
Vehicle-Side DC Fast Charging Interfaces as Enablers
SUNCAR has experience in this area from the development and production of vehicle-side charging interfaces based on the Combined Charging System. With the MEGAFLOW1500, the company now presents 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 consolidates central functions for high-performance charging according to the MCS approach in a modular system.
The DC interface includes, among other things, the charging inlet, high-voltage switching and safety devices, measurement and monitoring functions, as well as functions for internal communication with the vehicle controller. 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 according to the relevant standards and manages coordination between the 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 creates the technical prerequisite for implementing MCS charging safely, with monitoring, and in compliance with standards.
“When it comes to megawatt charging, the discussion often focuses on charging parks and infrastructure. In practice, however, the vehicle side determines whether the technology is deployed,” says Stefan Schneider, CEO of SUNCAR AG. “With the MEGAFLOW1500, we provide vehicle manufacturers with a solution that significantly simplifies entry into MCS charging technology and supports different vehicle concepts.”
Inquiries
Stefan Schneider
CEO
Tel. +41 44 542 05 00
press@suncar-ag.com
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Technical specifications
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 W 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 EMC cable glands Outlet: EMC 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 controller Inlet according to IEC TS 63379 Derating based on inlet temperature Control of connector locking and LEDs |
| Optional charging controller | MCS communication according to IEC 61851-23-3 and ISO 15118-20 CAN communication with vehicle controller Inlet according to IEC TS 63379 Derating based on inlet temperature Control of connector locking and LEDs |
About SUNCAR
SUNCAR AG, based in Oberbüren (SG), is a Swiss technology and development company for the electrification of commercial, municipal, and off-highway vehicles. The company originated from an ETH focus project and was founded in 2015 as a subsidiary of Huppenkothen Baumaschinen AG. SUNCAR operates its own research and development center as well as a production facility in Schlieren (ZH).
SUNCAR is responsible for the world’s first battery-powered electric excavator in 2014. To this day, the company works on innovations that drive decarbonization and accelerate the energy transition. For this purpose, the company employs 45 staff in the areas of electronics, software, and mechanical engineering development as well as in its own product division. The 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.
