Precision-engineered electromagnetic components designed for heavy-duty EV charging infrastructure, renewable energy storage (BESS), and electric traction power distribution networks in Denmark.
Founded in 2010 in the clean logistics hub of the Qingbaijiang District of Chengdu, Chengdu Suchen Environmental Protection Materials Co., Ltd. has developed into a highly diversified industrial group. We operate at the intersection of energy technology and precision engineering across three core business pillars:
As a globalized technology partner, we maintain strict quality criteria to support international systems integration. We are proudly focused on servicing Denmark's fast-expanding renewable infrastructure networks, delivering reliability and optimized commercial lead times.
Years of Production Experience
In modern electrical architectures, high-voltage DC (Direct Current) circuits present unique engineering challenges compared to traditional AC (Alternating Current) circuits. AC circuits naturally cross zero volts twice per cycle, making arc extinguishing straightforward. DC circuits do not have a natural zero-crossing point. When contacts open under high currents, the resulting plasma arc is highly sustained and destructive. To prevent contact fusion or catastrophic equipment failures, highly specialized DC contactors and relays are critical. Our specialized design utilizes localized magnetic blowout techniques and hermetic gas encapsulation to reliably extinguish these high-energy arcs.
To balance the intermittency of offshore wind power (pioneered by leaders such as Ørsted and Vestas), Denmark is deploying municipal and regional scale battery energy storage facilities. High-voltage DC contactors serve as the main safety disconnect elements within the battery management systems (BMS). They protect the lithium-ion batteries from overcurrent conditions, thermal runaway risks, and high-energy short circuits by isolating battery banks in milliseconds.
Across urban highways like the E20 and E45, charge point operators in Denmark are upgrading from standard 50kW chargers to 150kW and 350kW+ high-power DC chargers. Operating at up to 1000VDC, these systems demand reliable DC contactors. Our contactors perform safe isolation of current pathways before, during, and after charging procedures, preventing shock risks to consumers and equipment damage from vehicle ground faults.
Denmark's maritime industry is aggressively transitioning to battery hybrid and fully electric vessels (e-ferries). Marine energy storage rooms utilize heavy-duty DC contactors to manage battery array switching and battery-to-inverter safety coupling. These contactors must handle severe vibration, corrosive marine atmospheres, and high cyclic thermal stresses, requiring robust, certified engineering specifications.
We combine advanced material science, rigorous quality control, and customer-first alignment to power your critical projects.
To become a globally recognized developer of green energy components, driving technological transitions that support clean manufacturing and zero-emission logistics infrastructures worldwide.
Built on "integrity, cooperation, and win-win." We advocate for transparent engineering collaboration, deep material research, and sustainable growth alongside our clients.
Providing custom product adaptation, structural packaging design options, and comprehensive warranty and application support to solve local technical challenges.
Supplying Denmark's maritime shipyards, wind tower fabrication facilities, and precision sheet metal workshops with high-performance cutting accessories.
In response to evolving market requirements for high voltage, compact footprints, and smart functionalities, our technical R&D roadmap focuses on the following primary pillars:
Utilizing hydrogen-enriched gas mixtures sealed inside a ceramic housing to facilitate fast thermal dissipation. This allows us to safely extinguish higher voltage arcs within milliseconds, preventing terminal degradation.
Modern battery networks switch current flows between charging and discharging modes. Our bidirectional DC contactor configurations ensure uniform arc mitigation regardless of current flow direction, critical for advanced microgrids and solar-battery integration.
Developing auxiliary tracking terminals that measure micro-ohm contact resistance changes over time. This supports predictive maintenance and preventative component replacement to minimize system downtime.
Upgrading our standard 750V and 1000V lines to handle 1500VDC continuously to support high-efficiency utility-scale grid links and heavy transport power converters.
Our Chengdu production facilities provide competitive supply chain advantages to our Danish partners, ensuring security of supply and cost efficiency:
We optimize our shipping routes to balance cost, delivery speed, and environmental impact for Danish and European importers:
| Shipping Method | Transit Time | Carbon Footprint | Ideal For |
|---|---|---|---|
| Rail (Chengdu-Europe) | 15-18 Days | Low | Bulk Components |
| Air Freight | 3-5 Days | High | Urgent Prototypes |
| Sea Freight | 35-45 Days | Low | High-volume Stock |
Operating in the high-voltage sector requires safety compliance and technical validation. Suchen designs, manufactures, and tests its DC contactors to meet strict international standards, ensuring seamless integration into Danish machinery, industrial panels, and energy installations.
Expert answers addressing the selection, engineering, and maintenance of high-voltage DC contactors and relays in commercial systems.
Explore our complete range of high-voltage DC components and industrial cutting consumables, optimized for the Nordic industrial market.
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