SK Signet, a South Korea-based manufacturer of high-power electric vehicle charging solutions, has introduced its new 400-kilowatt all-in-one ultrafast EV charger. This model enhances energy and space efficiency using high-density silicon carbide (SiC)-based power modules and a high-efficiency power design.
The company aims to solidify its technological leadership in North America and strengthen its presence in the rapidly growing US ultrafast EV charging market. Driven by increasing demand for 400-kW charging infrastructure due to more EVs equipped with 800V high-voltage battery architecture, the new charger integrates power cabinets and dispensers into a single compact unit, which simplifies installation and reduces civil construction costs.
The charger features a high-density SiC-based power architecture for stable high-power charging and minimal energy loss, boasting a power conversion efficiency of up to 96.5%. Its modular architecture allows operators to scale charging capacity with flexible configurations of 320 kW, 360 kW or 400 kW, supporting future infrastructure scalability without large initial capital expenditures.
The design also optimizes space by reducing the installation footprint by 54% compared to previous models, enabling efficient deployment in space-constrained environments such as retail centers and parking facilities. Key features include liquid-cooled charging cables, an ergonomic swing arm cable management system, support for both Combined Charging System 1 (CCS1) and North American Charging Standard (NACS), multiple connector configurations, and a 32-inch touchscreen display.
SK Signet has completed development and begun initial production of the 400-kW all-In-one charger in the US, with plans to introduce the product to the European market by the end of 2026 and expand its supply to global markets in the long term.
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