Yueqing Tongda DPST Rocker Switch Upgraded

Yueqing, China, [November 21, 2025] — In the field of electronic components, new concepts emerge one after another, but the reliability and adaptability of classic products remain irreplaceable. Yueqing Tongda Wired Electric Factory, a benchmark enterprise with over 40 years of experience in electronic component manufacturing, announced today the technical refresh of its DPST Rocker Switch. With industrial-grade stable performance, multi-circuit control advantages, and wide scenario adaptability, it continues to be a core control component in industrial automation, commercial equipment, new energy and other fields, demonstrating the core value of classic products in the new era.

As a core category among toggle switches, the DPST Rocker Switch realizes independent or linked control of two circuits through a "Single Pole Double Throw" structure. It is widely used in key links such as equipment power switching, function mode conversion, and circuit selection. Its operational convenience and structural stability have made it an "evergreen" product in industrial scenarios.

This refresh focuses on targeted optimization of industrial scenario pain points: Adopting a "reinforced rocker + silver alloy dual-contact" structure, the trigger stroke is precisely controlled at 1.5-2.0mm, the operating force ranges from 4-7N, with clear feedback and no jamming. The initial contact resistance of a single circuit is ≤5mΩ, the rated load reaches 16A/250V AC, supporting synchronous on-off of dual circuits, and avoiding equipment shutdown caused by single-circuit failure of traditional switches; The shell is upgraded to flame-retardant PA66-GF30 reinforced nylon material, with a flame-retardant grade of UL94 V-0, insulation resistance ≥100MΩ (500VDC), and terminal withstand voltage of 2000V AC, effectively resisting electromagnetic interference and voltage fluctuations in industrial environments.

The DPST Rocker Switch excels in durability and environmental adaptability: The mechanical lifespan exceeds 100,000 cycles, and the electrical lifespan reaches 80,000 cycles, enabling stable operation for more than 5 years in high-frequency industrial scenarios; The operating temperature ranges from -40℃ to 120℃, passing rigorous tests such as salt spray corrosion (72 hours) and vibration impact (10-60Hz). It is suitable for complex working conditions such as high-temperature workshops, outdoor equipment, and humid environments, and can operate stably without additional protection.

Strict quality control runs through the entire production process. Relying on a fully automated precision assembly line, the key dimensional error is controlled within ±0.02mm, and each finished product must pass 8 tests including dual-circuit on-off consistency, durability pressing, and insulation withstand voltage. Currently, the product has obtained international certifications such as UL, VDE, and CQC, complies with the IEC 61058 industrial standard and RoHS environmental directive, maintains a 100% factory qualification rate, and has an annual production capacity of 8 million units.

The market application results are remarkable: In the industrial automation field, supporting the control cabinet of a brand's assembly line, it realizes rapid switching of the main and standby circuits of the equipment, reducing the fault shutdown time by 60%; In the commercial equipment scenario, adapting to the mode conversion of large refrigeration units, the dual-circuit control ensures operational stability, reducing the equipment failure rate by 55% after application in a cold chain enterprise; In the new energy field, used for power distribution control of energy storage equipment, its wide temperature performance adapts to outdoor energy storage stations, winning bulk supporting orders.

"The refresh of the DPST Rocker Switch is our continuous empowerment of classic products," said the enterprise's person in charge. In the future, we will further optimize the product's intelligence level, develop intelligent models with status feedback, and continuously expand emerging scenarios such as new energy and industrial robots, allowing classic products to play a greater role in industrial control in the new era.