In industrial control cabinets, power equipment, and household appliances, a structurally simple yet vital component—the rocker switch—silently undertakes the dual mission of circuit control and safety protection. Recently, Yueqing Tongda Wire Electric Factory announced that its newly upgraded series of industrial-grade  electrical rocker has entered mass production. With exceptional electrical performance and mechanical durability, this product is becoming the preferred choice for more and more equipment manufacturers.

Precise Control, Defining Industrial-Grade Quality with Craftsmanship

As the direct interface between humans and equipment, the tactile feedback and reliability of a electrical rocker are crucial. The electrical rocker series launched by Yueqing Tongda features a high-strength flame-retardant engineering material (UL94 V-0) housing and high-conductivity silver alloy internal contacts, ensuring stable operation even at rated currents up to 16A/250V.

"An excellent rocker switch should provide the operator with clear, crisp feedback with every toggle," introduced the Product Manager at Yueqing Tongda. "By optimizing the internal rocker structure and spring pressure system, we have achieved a mechanical lifespan exceeding 80,000 cycles while maintaining consistent tactile feel throughout its entire service life."

Versatile Configurations Meet Demands of Complex Application Scenarios

To meet the application needs of different industries, this rocker switch series offers a wide range of configuration options:

Protection Rating:Base models offer IP40, while sealed models reach IP65/IP67, effectively resisting dust, water jets, and oil contamination, suitable for harsh environments like outdoor equipment and engineering machinery.

Functional Configurations:Supports various circuit structures including single-pole, double-pole, and three-pole, and can integrate dual-color LED indicators for intuitive circuit status display.

Customization Services: Provides customization of colors, markings (laser engraved), and mounting dimensions to perfectly match the overall design and brand image of the equipment.

Safe and Reliable, Ensuring Stable Equipment Operation

Safety is the core value of the electrical rocker. This series employs a double-insulation design, with electrical clearance and creepage distance exceeding national standards, effectively preventing arc flashover and leakage risks. The product has fully passed CE, TUV, CQC, RoHS, and other authoritative certifications, providing strong support for equipment manufacturers' global market access.

"In fields with extremely high safety requirements, such as medical equipment and power distribution units, switch reliability is directly related to personal and equipment safety," stated the Technical Director of Yueqing Tongda. "Our electrical rocker undergo rigorous endurance cycling, high/low temperature cycling, and salt spray testing before leaving the factory, ensuring every switch is fit for its mission."

Market Validation, Earning Trust from Industry Leaders

With its proven quality, Yueqing Tongda's electrical rocker have successfully entered the supply chains of several industry-leading enterprises. A procurement manager from a well-known power supply manufacturer commented: "We compared multiple suppliers. Yueqing Tongda's products performed most stably in endurance tests, especially showing significantly lower contact wear rates than the industry average during high-load switching tests."

Yueqing, China – Yueqing Tongda Electric Factory announced today that its classic product line – Car Rocker Switches – has completed a new round of technological upgrades while marking its 20th anniversary in continuous production. Since their initial launch in 2003, this series has cumulatively delivered over 200 million units. They are widely used in automotive controls, construction machinery, marine equipment, and other fields, establishing the company as a trusted long-term partner for numerous domestic and international equipment manufacturers.

Classic Design Proven by the Market

As a signature product of Yueqing Tongda Electric Factory, this rocker switch series features a classic anti-misoperation structure and an ergonomic actuation force design. The product inherits silver-plated contact technology and glass-fiber reinforced shell materials that have stood the test of two decades in the market. While maintaining the classic appearance, continuous improvements in the production process have increased the product's mechanical endurance from an initial 100,000 cycles to the current 200,000 cycles.

Continuous Innovation in a Classic Product

"Classic does not mean stagnation," stated the Technical Director of Yueqing Tongda Electric Factory. "We collect customer feedback annually and make fine-tuned optimizations to the molds. The latest 2023 version, while maintaining interface compatibility, has increased the insulation resistance to above 100 MΩ and passed more stringent thermal shock tests."

Reliable Quality Earns Generational Trust

It is reported that Car Rocker Switches series has been included in the standard parts procurement catalog for the automotive aftermarket and is designated as a specified replacement part by several heavy machinery manufacturers. A customer who has collaborated for over fifteen years provided feedback: "We started using this switch in 2008. Its consistency is impressive, which is crucial for equipment maintenance."

In the field of industrial automation, a seemingly insignificant component often determines the reliability of the entire system. Yueqing Tongda Cable Factory recently announced a technological breakthrough in its independently developed series of 240V Micro Switches. This component, small as a fingernail, is redefining industry standards with its exceptional electrical performance.

Designed specifically for industrial environments, this micro switch successfully addresses the technical challenge of carrying high voltage within a small form factor. Utilizing special silver alloy contacts and a double-break structure design, the product achieves a rated capacity of 240V/16A while maintaining a compact profile, fully meeting the requirements for control circuits in 380V electrical systems. "Space in automation equipment control cabinets is extremely valuable," stated the company's Chief Engineer. "Our switch provides an electrical capacity two levels higher than conventional products within the same installation footprint."

The product's core competitiveness lies in its extraordinary electrical lifespan. Through an optimized arc-extinguishing system and the use of arc-resistant materials, the switch achieves a mechanical life of over 10 million operations and an electrical life exceeding 500,000 operations under a 240V resistive load. A Quality Director from a well-known frequency converter manufacturer in Zhejiang confirmed: "During control board testing for frequency converters, this switch endured three consecutive months of operation at a frequency of 60 cycles per minute, with performance degradation still within the standard range."

Safety is another standout feature. The switch body is constructed from housing material with a UL94 V-0 flame-retardant rating, and the terminals feature a dual-locking structure to effectively prevent loosening in vibrating environments. These characteristics make it particularly suitable for harsh working conditions, such as those in construction machinery, power distribution, and industrial washing machines.

As industrial equipment trends toward compactness, traditional relays are gradually being replaced by high-capacity micro switches. Yueqing Tongda has taken the lead in this market segment. Currently, this product series has obtained international certifications including UL, CE, and TUV, and has been successfully integrated into products exported to more than twenty countries and regions, including Europe and Southeast Asia.

Yueqing, China, \[2025/10/17] – In the world of electronic control, a fundamental component known as the "Momentary Button" is becoming a key element for achieving efficient and safe human-machine interaction in modern equipment, thanks to its unique "make-while-pressed, break-when-released" characteristic. Recently, Wenzhou Tongda Electric Co., Ltd. in Yueqing announced that its Momentary Button series, a primary product line, has secured steadily growing orders in the fields of industrial control, medical devices, and high-end human-machine interfaces. This success underscores the company's profound technical expertise in this specialized market segment.

Precise Insight: The Technical Essence Behind the Momentary Action

Unlike latching buttons, momentary buttons require the user to maintain pressure throughout the operation to keep the circuit closed; the circuit breaks immediately upon release. This characteristic makes them the ideal choice for functions requiring instantaneous signal commands such as "Start," "Stop," or "Reset." The Technical Director of Tongda Electric pointed out: "The seemingly simple 'feel of the press' is the result of the perfect integration of a precise spring mechanism, contact materials, and travel design. Our goal is to provide customers with a high-quality product that offers clear tactile feedback, responsive action, and a long operational life."

Precision Manufacturing: Delivering Reliable Feedback with Every Press

To create top-tier momentary button products, Tongda Electric strives for excellence in multiple aspects. Firstly, in the critical design of the force curve, the R\&D team ensures smooth, definite actuation and return with no ambiguous feeling, providing users with precise operational feedback through repeated testing and calibration. Secondly, for the contact system, high-quality silver alloy materials and anti-oxidation processes are employed to ensure stable contact and minimal resistance, even in low-current, low-voltage signal circuits.

"An excellent momentary button can have a lifespan reaching several hundred thousand, or even over a million cycles," explained the company's Quality Manager. "Through rigorous mechanical and electrical endurance testing, we simulate extreme scenarios of high-frequency use to ensure that every button leaving our factory maintains its initial sensitivity and reliability even after long-term use."

Broad Applications: From Industrial Equipment to Smart Terminals

Leveraging their reliable quality, Tongda Electric's momentary buttons have been successfully applied in numerous cutting-edge fields. On industrial control panels, they serve as critical components for emergency stops, mode switching, or step-by-step control. In medical equipment, they provide doctors with accurate, delay-free operational input. In consumer-grade products like financial terminals and smart home control panels, their superior tactile feel directly enhances the overall user experience.

The company's Marketing Director stated: "When customers choose our momentary buttons, they are not just buying a switch; they are selecting a reliable operational experience. We can provide customized solutions based on client needs, including different key travel, actuation force, color, backlighting (LED), and protection ratings (such as IP67 dust and water resistance), meeting the differentiated design requirements of their products."

Future Outlook: Continuous Innovation in the Wave of Intelligentization

With the deepening development of Industry 4.0 and IoT technology, the performance and reliability requirements for basic human-machine interaction components are increasing. Wenzhou Tongda Electric Co., Ltd. announced that it will continue to deepen its technological investment in the momentary button field, exploring possibilities for integrating traditional momentary buttons with new technologies like touch sensing and force sensing. The company is committed to providing customers with more intelligent and integrated control solutions, consolidating its leading position in the field of high-end control components.

Yueqing, China, \[2025.10.15] – Within the broad application spectrum of micro switches, products capable of handling higher currents remain the backbone for driving the stable operation of industrial equipment and major home appliances. Recently, Wenzhou Tongda Electric Co., Ltd. in Yueqing announced that its 16A micro switch series, one of its core product lines, has become a significant engine for the company's business growth. Leveraging exceptional electrical performance and reliability, it has secured a broad customer base in the highly competitive market.

Precise Positioning: Overcoming Technical Barriers in High-Current Applications

Unlike standard low-current signal switching micro switches, 16A micro switches are designed to safely and stably control high-load devices such as motors, compressors, and high-power heating elements. This places near-stringent demands on the switch's contact materials, arc quenching capability, heat dissipation design, and mechanical structure.

Building on its profound industrial experience accumulated in Yueqing, known as the "Capital of Electrical Equipment," Wenzhou Tongda Electric identified high-capacity 16A micro switches early on as a key focus for technological breakthrough and market development. The company's Technical Manager stated, "The 16A rating is a critical technical threshold. It signifies that our products must withstand the arc impact generated during frequent switching, ensure contact resistance remains low throughout the product's entire lifecycle, and thereby prevent safety hazards caused by overheating."

Precision Manufacturing: Forging Stable and Reliable Product Quality

To achieve this goal, Tongda Electric has dedicated extensive effort to the manufacturing of its 16A micro switches. Primarily, for the core contact materials, options like silver tin oxide with superior anti-weld properties are selected, significantly enhancing the contacts' resistance to arc erosion when switching high currents. Furthermore, the switch housing utilizes flame-retardant engineering plastics, and the internal arc quenching structure is optimized, effectively improving the product's safety rating.

At the end of the production line, every single 16A micro switch must pass multiple quality checkpoints, including full-load (16A) switching endurance tests, high-temperature and high-humidity environmental tests, and dielectric strength tests. "We simulate conditions harsher than actual operating environments," the Quality Director emphasized. "Only products that remain stable after thousands of full-load switching cycles qualify for delivery to our customers. This is a non-negotiable requirement for our products."

Market Application: Deeply Serving Core Industrial and Appliance Sectors

Thanks to their robust quality, Tongda Electric's 16A micro switches have successfully penetrated several core application areas. In industrial control, they are widely used in AC contactors, relays, CNC equipment, etc., serving as reliable units for signal transmission and status detection. In the home appliance sector, they have become indispensable control and protection components in products like high-power washing machines, air conditioners, and commercial kitchen appliances.

The company's Sales and Marketing Director commented, "When customers choose our 16A switches, they are essentially choosing a commitment to safety and performance. We not only provide standard products but also offer customization services based on clients' specific installation space and circuit requirements. This has created a unique competitive advantage for us against international brands."

Future Outlook: Continuously Consolidating Leadership in Power Switching

Looking ahead, the market demand for highly reliable, long-life 16A micro switches is expected to remain strong, fueled by industrial automation upgrades and the proliferation of smart appliances. Wenzhou Tongda Electric Co., Ltd. announced that it will continue to increase R\&D investment in high-load micro switches, striving for new breakthroughs in materials science and structural design to further enhance product electrical life and environmental adaptability. The company aims to establish itself as the preferred partner for global customers in the field of high-quality micro switch solutions.

In core scenarios such as industrial power control, smart home power distribution, and medical equipment power supply, the AC Rocker Switch serves as the "core hub" for circuit on-off. Its current-carrying capacity and safety stability directly determine the operational reliability of equipment. Yueqing Tongda Wired Electric Factory, which has been deeply engaged in electrical manufacturing for 38 years, relies on specialized R\&D and precision manufacturing of AC Rocker Switches to break through the pain points of traditional products such as "easy ablation under high load and frequent failures in harsh environments", becoming a benchmark supplier in the AC control field across multiple industries.

As a national high-tech enterprise, Yueqing Tongda listed the AC Rocker Switch as a core strategic product as early as 2010 and established a special R\&D team based on 94 patented technology reserves. Aiming at the industry problems of "easy oxidation of contacts and weak protection capability" of traditional switches, the team has achieved three major technological breakthroughs: the contacts adopt a silver-tin alloy vacuum welding process, reducing the contact resistance to less than 5mΩ, which can stably carry 16A-32A AC current, and the electrical service life exceeds 200,000 times, far surpassing the industry's conventional standard of 100,000 times; the shell innovatively uses flame-retardant PA66 material and a double-layer sealing structure, reaching IP67 protection level; it integrates a dual-color LED indicator light to realize visual monitoring of operating status. These upgrades have been applied in multiple scenarios: the 32A high-load model customized for an auto parts factory adapts to the high-frequency on-off needs of welding equipment and has operated continuously for 2 years without failures; the indicator-equipped model developed for a smart home brand, when embedded in a smart distribution box, allows users to intuitively judge whether the circuit is overloaded through the light.

Quality control runs through the entire production process. In the raw material link, each batch of silver-tin alloy contacts undergoes spectral testing; in the production link, 80 precision punch presses and fully automated assembly lines ensure that the component error is ≤ 0.02mm; in the finished product link, each switch must complete 200,000 pressing tests, 72-hour high-low temperature cycle tests, and insulation resistance tests, with a qualification rate of 100%. Previously, the IP67 protection model customized for an offshore platform has been used continuously for 3 years in a high-salt spray environment and still maintains stable on-off performance. Currently, the product has passed three major certifications: UL, VDE, and CQC, and has become a long-term supplier for enterprises such as Midea and Chint, with an annual sales volume exceeding 2 million units, sold well in European and American markets.

In the future, the enterprise will continue to focus on technological innovation, enabling the AC Rocker Switch to safeguard electrical safety in more scenarios.