Recently, Vicvac has made a series of important advances in the field of high-voltage DC contactors:

- A vehicle-mounted contactor project for a European luxury brand automaker has completed B-sample nomination.

- A production nomination has been achieved with a European public transport vehicle customer.

- An H-type product nomination has been secured with a data center energy storage system integrator customer.

The three nominations cover two major directions: international business and data centers. The first two are oriented toward international business, while the third targets the data center sector. This marks continued customer recognition of Vicvac in customized R&D, export of mature products, and data center energy storage applications.

Vicvac focuses on the R&D and manufacturing of high-voltage DC contactors and is committed to providing global customers with safe, reliable, and efficient power connection and control solutions. These multiple nominations not only represent concentrated customer recognition of Vicvac's technical R&D strength, quality system, and product competitiveness, but also lay a foundation for the company to further expand its international market and data center business.

**European Luxury Brand Automaker: B-Sample Nomination for Vehicle-Mounted Contactor Project; Innovative NTC Function Recognized by Customer**

This project is a B-sample vehicle-mounted contactor project developed by Vicvac for a European luxury brand automaker. The customer has officially placed orders for tooling and development fees, and B-samples will be delivered successively according to the customer's planned milestones.

▲ Figure 1 VVC250 high-voltage DC contactor

On the basis of a conventional contactor, this product adds an NTC function to monitor contact temperature in real time, demonstrating Vicvac's technical capability in customized development and structural innovation based on customer needs. During project execution, the customer factory audit was successfully passed, and the customer highly recognized Vicvac's quality system management. The B-sample nomination further consolidates customer trust and the foundation for cooperation in Vicvac's customized high-voltage DC contactor projects in Europe.

European Public Transport Vehicle Customer: Production Nomination Secured; Mature Product Passes Real-Vehicle Validation

This project is an important achievement in Vicvac's international business expansion. Since mid-year, Vicvac began sample delivery and testing. The products were installed on public transport vehicles in multiple locations in Europe, put into actual route operation, completed real-vehicle road testing, and successfully passed all test items. Recently, Vicvac received the customer's official production nomination and first batch order, and will continue deliveries thereafter.

This project uses Vicvac's mature VVE100C high-voltage DC contactor. The product demonstrated stable performance and reliable quality under real-vehicle operating conditions, reflecting the European market's recognition of Vicvac's mature products and the comprehensive competitiveness of Vicvac products in international public transport application scenarios. The production nomination provides strong support for the continued entry of Vicvac's mature products into the European market.

▲ Figure 2 VVE100C high-voltage DC contactor

Data Center Energy Storage System Integrator Customer: Breakthrough in H-Type Nomination; 1500A Product Safeguards Energy Storage Safety

This project is an important advance for Vicvac in the data center sector. The nominated product is the VVC1500H high-voltage DC contactor, with a current rating of up to 1500A. Vicvac is among the first to introduce high-voltage DC contactors into the data center energy storage field, launching the H-type product to build a solid defense line for electrical safety.

In response to the stringent requirements of 7×24 uninterrupted operation and millisecond-level switching in data centers, the H-type contactor features five core technologies: reliable high-voltage DC arc extinguishing, using a 1500V triple arc-extinguishing design; ultra-long life, with a mechanical life of more than 200,000 operations; extremely low contact resistance; compact modular design; and high protection and strong immunity. The product covers three major application scenarios—PCS main circuit switching, BMS-linked fault isolation, and seamless grid-to-energy-storage switching—and has passed international certifications such as UL, CE, and CQC, making every kilowatt-hour controllable and every switching operation imperceptible, thereby supporting the upgrade of data center power architectures.

▲ Figure 3 VVC1500H high-voltage DC contactor

Continued Deep Cultivation of High-Voltage DC Contactors; Dual-Wheel Drive Opens Growth Space

The B-sample nomination for the European luxury brand automaker's vehicle-mounted contactor project, the production nomination from the European public transport vehicle customer, and the H-type nomination from the data center energy storage system integrator customer respectively reflect customer recognition of Vicvac's customized R&D capability, mature product competitiveness, and technical strength in data center energy storage products. The dual-wheel drive of international business and data center business will further enrich the application scenarios and market layout of Vicvac's high-voltage DC contactors.

In the future, Vicvac will continue to focus on its core track of high-voltage DC contactors, continuously improve its technical R&D, quality management, and delivery assurance capabilities, and provide global customers with safer, more reliable, and more efficient products and solutions.