Featured high-voltage relays configured for Vietnam's smart grid upgrades and local new energy vehicle development.
Vietnam is positioning itself as one of Southeast Asia's powerhouse manufacturing hubs. Driven by rapid industrialization, the implementation of the National Power Development Plan VIII (PDP8), and a national shift toward green energy, the demand for reliable direct current (DC) electrical systems has surged. From industrial automation systems in Binh Duong to solar photovoltaic grids in Ninh Thuan, robust electrical components are essential to support this infrastructure.
DC contactors and high-voltage DC relays serve as the primary isolation switches in high-power setups. Unlike alternating current (AC) grids where zero-crossings naturally extinguish electric arcs, switching high-voltage DC currents is technically demanding. As Vietnam builds its domestic electric vehicle (EV) ecosystems, scales utility-grade battery energy storage systems (BESS), and expands heavy steel and shipyard fabrication, sourcing reliable DC contactors becomes a critical supply chain factor.
Delivering robust new energy components and metal fabrication consumables to the global market since 2010.
Established in the Qingbaijiang District of Chengdu, Chengdu Suchen Environmental Protection Materials Co., Ltd. has developed into a diversified manufacturer. We focus on three core divisions: plasma cutting and welding consumables, laser cutting and welding consumables, and high-voltage DC relays/contactors.
Through our strict focus on green manufacturing and sustainable engineering, Suchen products are designed to meet international environmental and safety standards. Our products serve multiple Fortune 500 companies, helping global partners transition toward cleaner, more efficient industrial operations.
A closer look at the R&D, structural design, and arc-suppression technology that makes Suchen DC relays suitable for heavy-duty industrial environments.
High-voltage DC contactors must handle powerful electrical arcs when opening under load. Suchen units utilize hermetically sealed ceramic contact chambers filled with pressurized hydrogen-mix gas. Combined with powerful magnetic blowouts, this design quickly stretches and extinguishes arcs, preventing contact oxidation and extending mechanical life.
Suchen DC relays use advanced ceramic-to-metal brazing technologies. This hermetic sealing prevents the escape of protective gas and blocks external dust, moisture, and flammable vapors. This is critical for reliable performance in hot, humid Vietnamese coastal industrial parks, preventing corrosion and contact degradation.
By using premium silver-alloy contact materials and high contact pressure mechanisms, Suchen maintains contact resistance values below 0.2mΩ. This minimizes heat dissipation at high operational currents, reducing thermal wear, preventing local temperature spikes, and ensuring high electrical efficiency.
Upholding green sustainable development and a client-focused service philosophy in the global market.
As an industry leader, Chengdu Suchen Environmental Protection Materials Co., Ltd. always adheres to the concept of "green sustainable development." In the process of product research and development and production, we actively use environmentally friendly materials and advanced processes to ensure that our products meet international environmental standards, helping our customers achieve green production. We believe that only through a sustainable business model can we establish and grow in the global market.
Our vision is to become a globally recognized supplier of environmental materials and new energy components, driving the green transformation of the global manufacturing industry. To this end, we are committed to technological innovation and market development, striving to enhance product performance and market competitiveness to meet the growing demands of our customers. We serve multiple Fortune 500 companies and have received consistent praise from our clients.
In terms of corporate culture, Suchen advocates the core values of "integrity, cooperation, and win-win." We deeply understand that integrity is the cornerstone of enterprise development, and we always adhere to treating people with honesty to establish long-term cooperative relationships. We encourage teamwork and advocate for the sharing of knowledge and experience to achieve efficient integration and utilization of resources. Win-win is the goal we pursue together with our customers, suppliers, and partners, aiming to create a mutually beneficial situation through our joint efforts.
Chengdu Suchen Environmental Protection Materials Co., Ltd. will continue to uphold the service philosophy of "customer first," committed to promoting the development of green and environmentally friendly initiatives, and working hand in hand with global partners to create a better future. We look forward to collaborating with you to jointly open a new chapter in sustainable development.
How our dual focus on high-voltage DC components and industrial consumables supports key sectors across Vietnam.
As VinFast and other major automotive companies roll out fast-charging networks across major highways and cities in Vietnam, DC contactors are critical for the safe distribution of high-current power. Our NVR6V series relays provide reliable electrical isolation and overcurrent protection inside chargers and battery management packs.
Vietnam's solar PV networks require large energy storage systems to balance load profiles. Suchen's high-voltage DC relays are designed to handle system voltages up to 1000VDC/1500VDC, acting as the main safety switch in battery packs and power conversion systems (PCS).
Vietnamese shipyards and metal fabrication workshops require durable cutting systems. Alongside our electrical relays, we supply precision electrodes, shields, and nozzles for plasma and laser cutting machinery, helping operations run with minimal downtime.
Suchen's manufacturing processes and product lines are certified by leading international bodies. These credentials verify that our relays and cutting consumables meet strict quality, performance, and safety metrics.
For engineering departments and procurement officers in Vietnam, this compliance minimizes risk and streamlines project approvals. We maintain strict quality control through automated optical inspections, dynamic cycle testing, and micro-ohm resistance evaluations.
Anticipating next-generation system demands in the global electric grid and automotive architectures.
To reduce transmission losses and structural costs, solar and battery systems are moving from 1000V to 1500V DC layouts. Our development teams are upgrading creepage distances, insulating barriers, and gas mixtures to ensure safe, long-term switching at 1500VDC levels.
Future high-voltage grids will benefit from smart components. Suchen's technical roadmap includes integrating micro-sensors directly within our DC contactor housings, enabling real-time monitoring of contact wear, local temperature, and coil currents.
In line with global environmental guidelines, we are reducing our footprint by using recyclable plastics, lead-free solder, and optimized ceramic-to-metal brazing techniques to eliminate toxic substances from our production lines.
Essential guidance for design engineers and procurement departments deploying high-voltage DC systems.
Preserving original product configurations and links, optimized for industrial deployment in Vietnam.
SUCHEN