10A Micro Switch, Boosting Domestic Medium-Power Control Components

   Tongda Wire Factory in Yueqing recently announced the full-scale mass production of its independently developed 10A micro switch. With a load capacity of 10A/250VAC and a compact structural design, the product has passed specialized testing by the National Electrical Safety Quality Supervision and Inspection Center. It is expected to break the long-term reliance on imported brands for medium-power micro switches in fields such as home appliances and industrial control.

Three Decades of Expertise in Micro Switches Drives Product Breakthrough

   As one of the earliest enterprises in Yueqing engaged in micro switch production, Tongda Wire Factory has leveraged the local well-established industrial chain for electrical components to continuously invest in R&D on contact materials and structural design. The 10A series adopts silver cadmium oxide contacts and a double-break structure, effectively suppressing arc generation, with a mechanical lifespan exceeding 500,000 cycles. Factory General Manager Lin Jianguo stated, "In response to the reality of significant fluctuations in the domestic power grid, we have enhanced the switch's transient overload capability, ensuring stable operation even at 110%-130% of the rated voltage."

Stringent Quality Control Earns Market Recognition Through Reliability

   In the production workshop, fully automated injection molding equipment and precision stamping production lines were observed running at full capacity. The Quality Inspection Department head explained that each switch must pass 12 processes, including contact resistance testing and insulation voltage withstand checks. Finished product samples also undergo an 85°C high-temperature aging test. The product has already been successfully adopted by several well-known local electrical companies for applications such as air switches and AC contactors. A long-term customer commented, "At a cost 40% lower than imported brands, Tongda's 10A switch delivers comparable performance, making it particularly suitable for bulk procurement."

Leveraging Yueqing's Industrial Cluster for Differentiated Service Advantages

   Benefiting from the regional advantages of Yueqing as the "Capital of Electrical Equipment in China," the factory has established a rapidly responsive supply chain. Sales Manager Wang Wei revealed, "We promise sample delivery within 24 hours for customers within the province and support flexible customization of terminal structures and actuator shapes." Recently, the factory also developed a derivative model with an IP67 waterproof rating for electric vehicle charging gun manufacturers, further expanding its application scenarios.

Future Plans: Transitioning from Parts Manufacturer to Solution Provider

   In response to the rapid development of smart homes and the Industrial Internet of Things, Tongda Wire Factory is planning to establish a reliability laboratory for micro switches and collaborate with Wenzhou Research Institute of Zhejiang University to develop smart switches with condition monitoring functions. Lin Jianguo admitted, "Our next step is to shift from supplying single components to providing customized circuit protection solutions for customers."