Preventing erroneous activation: The irreplaceability of Push Button NC in high voltage and high-risk environments.

   In scenarios such as industrial equipment emergency stop, medical instrument safety circuits, and security system triggering, Push Button NC serves as the "first line of safety defense". Its on-off reliability is directly related to equipment and personal safety. Yueqing Tongda Wired Electric Factory, which has been deeply engaged in the switch field for more than 30 years, has broken the pain points of traditional products such as "slow power-off response and weak environmental resistance" through specialized R&D on Push Button NC, providing stable and reliable safety control solutions for multiple industries.

   Yueqing Tongda lists Push Button NC as a core main product, driven by in-depth insights into the industry's safety needs. Traditional normally closed pushbutton switches often suffer from "power-off delay" due to contact oxidation and spring fatigue, which easily causes safety hazards in industrial emergency stop scenarios. To address this, the factory's R&D team has made targeted optimizations: the contacts are made of silver-nickel alloy and processed through vacuum welding technology to reduce contact resistance, ensuring the power-off response time is controlled within 0.01 seconds; the springs are made of fatigue-resistant stainless steel, which maintains stable elasticity even after 100,000 pressing tests, far exceeding the industry standard of 80,000 times. Meanwhile, the innovative "dust-proof and waterproof integrated shell" design enables the product to reach IP65 protection level, allowing it to work stably for a long time in dusty and humid industrial workshops.

   Scenario-based adaptation enhances the market competitiveness of Push Button NC. For the industrial field, a "locked model" is launched, which requires rotation to reset after being pressed to avoid accidental touch causing equipment restart; for medical equipment, a "mute model" is developed, which controls the operation noise below 30 decibels through a silicone buffer structure, adapting to the quiet environment of hospital wards; the special model for security systems optimizes trigger sensitivity, allowing quick circuit cut-off with a slight press, and its response speed is 20% faster than traditional products. Previously, the emergency stop Push Button NC customized for an auto parts factory, relying on its "fast response + shock resistance" features, helped reduce the safety accident rate of its production line by 40%.

   Quality control is the core of product reputation. Yueqing Tongda has established a full-process standard from raw material selection to finished product delivery: each batch of contacts must pass component spectral testing; fully automated assembly equipment is used in the production process to ensure the dimensional error is ≤ 0.02mm; finished products must undergo high-low temperature cycle tests and insulation resistance tests, with a qualification rate of 100%. Currently, its Push Button NC has passed UL and CQC certifications and become a qualified supplier for enterprises such as Gree and Midea, continuously empowering safety control in various industries.