Top 10 vacuum relay Factory in China

Aug 27, 2026Leave a message

Introduction to Vacuum Relay

A vacuum relay is an electrical switch that uses a vacuum as the insulating medium between its contacts. It offers several advantages over conventional relays, such as high insulation resistance, low contact resistance, long electrical life, and the ability to handle high voltages and currents. Vacuum relays are widely used in various industries, including telecommunications, power systems, test and measurement equipment, and aerospace, due to their reliable performance and excellent electrical characteristics.


Here are the top 10 vacuum relay factories in China:


1. Jingdezhen Wanping Electric Co., Ltd.

Jingdezhen Wanping Electric Co., Ltd. is a professional manufacturer specialized in the research, development, production, and sales of vacuum relays. The company is committed to providing high - quality products and excellent services to its customers.


Features in Vacuum Relay

  • High - precision manufacturing: The company uses advanced manufacturing processes to ensure the accuracy of the vacuum relay's structure. The contacts are precisely fabricated to achieve stable contact resistance, which is crucial for the reliable operation of the relay in different electrical circuits.
  • Good vacuum performance: It has strict quality control over the vacuum environment inside the relay. A high - quality vacuum can effectively prevent arcing and oxidation of the contacts, thereby extending the service life of the relay.
  • Customization ability: Jingdezhen Wanping Electric can customize vacuum relays according to the specific requirements of customers. Whether it is for special voltage levels, current capacities, or installation dimensions, the company can provide tailored solutions.


Company Advantages

  • Technical expertise: The company has a team of experienced R & D engineers who are constantly exploring new technologies and improving product performance. They keep up with the latest industry trends and apply advanced concepts to product design and manufacturing.
  • Quality management system: Jingdezhen Wanping Electric has established a complete quality management system. From raw material procurement to finished product testing, every step is strictly monitored to ensure that the products meet high - quality standards.
  • Customer - oriented service: The company values customer feedback and provides timely after - sales service. It can quickly respond to customer needs and solve problems, which has won a good reputation among customers.


Website: https://www.cewpdq.com/


2. Xuji Group Corporation

Xuji Group is a large - scale high - tech enterprise focusing on power equipment and automation. It has a long - standing history and a strong R & D and manufacturing capacity.


Features in Vacuum Relay

  • High - voltage and high - current handling: Xuji's vacuum relays are designed to handle high - voltage and high - current applications in power systems. They can withstand large electrical loads without significant degradation in performance, ensuring the stable operation of power grids.
  • Advanced arc - extinguishing technology: The company has developed advanced arc - extinguishing technology for its vacuum relays. This technology can quickly and effectively extinguish arcs generated during the switching process, reducing the damage to the contacts and improving the reliability of the relay.
  • Compatibility with power system automation: Xuji's vacuum relays are well - integrated with power system automation equipment. They can be easily controlled and monitored remotely, which is in line with the development trend of intelligent power grids.


Company Advantages

  • Strong R & D strength: Xuji has a large - scale R & D center with a large number of professional engineers. The company invests heavily in R & D every year to continuously improve the performance and quality of its products.
  • Extensive industry experience: With decades of experience in the power industry, Xuji has a deep understanding of the requirements of power systems. This allows it to design and produce vacuum relays that are highly suitable for power applications.
  • Good brand reputation: Xuji is a well - known brand in the power industry. Its products are widely recognized for their high quality and reliability, which gives it a strong competitive edge in the market.


3. Changshu Switchgear Manufacturing Co., Ltd.

Changshu Switchgear Manufacturing Co., Ltd. is a leading enterprise in the field of electrical equipment manufacturing. It has a comprehensive production line and a complete quality control system.


Features in Vacuum Relay

  • Compact design: The company's vacuum relays feature a compact design, which is suitable for applications where space is limited. This design not only saves installation space but also makes the overall electrical system more compact and efficient.
  • High - speed switching: Changshu Switchgear's vacuum relays can achieve high - speed switching, which is very important for applications that require rapid response, such as in some high - frequency electrical circuits.
  • Low power consumption: The relays are designed to consume less power during operation. This helps to reduce energy consumption and operating costs in electrical systems.


Company Advantages

  • Advanced manufacturing technology: The company uses advanced manufacturing equipment and processes to ensure the high quality and consistency of its products. It continuously upgrades its production technology to improve production efficiency and product performance.
  • Comprehensive testing system: Changshu Switchgear has a comprehensive testing system to test the performance of vacuum relays at various stages of production. This ensures that only products that meet strict quality standards are delivered to customers.
  • Good after - sales service network: The company has established a wide - ranging after - sales service network. It can provide timely technical support and maintenance services to customers, ensuring the long - term stable operation of its products.


4. Zhejiang Chint Electrics Co., Ltd.

Zhejiang Chint Electrics is a well - known electrical equipment manufacturer with a global presence. It has a wide range of products and a strong market competitiveness.


Features in Vacuum Relay

  • High - reliability design: Chint's vacuum relays are designed with high - reliability in mind. They are able to operate stably in harsh environments, such as high - temperature, high - humidity, and high - vibration conditions.
  • Wide range of specifications: The company offers a wide range of vacuum relay specifications to meet the different needs of customers. Whether it is for small - scale electrical equipment or large - scale industrial applications, there is a suitable product.
  • Intelligent control function: Some of Chint's vacuum relays are equipped with intelligent control functions. They can be connected to intelligent control systems, allowing for remote control and monitoring, which is in line with the development trend of smart manufacturing.


Company Advantages

  • Global market influence: Chint has a large - scale global sales network. Its products are sold in many countries and regions around the world, which gives it a strong brand influence in the international market.
  • Continuous innovation: The company attaches great importance to innovation. It invests a lot of resources in R & D to develop new products and improve existing products, keeping up with the development of the electrical industry.
  • Strong supply chain management: Chint has a well - established supply chain management system. It can ensure the stable supply of raw materials and components, which is crucial for the continuous production of high - quality products.


5. Shanghai Electric Group Co., Ltd.

Shanghai Electric is a large - scale state - owned enterprise with a long history and a wide range of business areas. It has strong technical strength and manufacturing capabilities in the field of electrical equipment.


Features in Vacuum Relay

  • High - quality materials: Shanghai Electric uses high - quality materials in the production of vacuum relays. This ensures the long - term stability and reliability of the relays, especially in high - voltage and high - current applications.
  • Advanced manufacturing process: The company has advanced manufacturing processes for vacuum relays. From the production of contacts to the assembly of the entire relay, every step is strictly controlled to ensure product quality.
  • Good electromagnetic compatibility: Shanghai Electric's vacuum relays have good electromagnetic compatibility. They can operate stably in complex electromagnetic environments without being affected by electromagnetic interference, which is very important for some sensitive electrical systems.


Company Advantages

  • Rich resources and strong financial support: As a large - scale state - owned enterprise, Shanghai Electric has rich resources and strong financial support. This allows it to invest in large - scale R & D projects and expand production capacity.
  • Comprehensive R & D and manufacturing capabilities: The company has a complete R & D and manufacturing system. It can independently develop and produce various types of vacuum relays, from small - sized relays for general applications to large - scale relays for power systems.
  • Good cooperation with research institutions: Shanghai Electric has established good cooperation relationships with many research institutions. This enables it to access the latest scientific research results and apply them to product development, improving the technological level of its products.


6. Siemens (China) Co., Ltd.

Siemens is a well - known international company with a long - standing reputation in the electrical and industrial fields. Its operations in China have also achieved remarkable results.


Features in Vacuum Relay

  • Advanced technology transfer: Siemens transfers its advanced technology from its global R & D centers to its Chinese manufacturing facilities. This ensures that the vacuum relays produced in China have the same high - quality standards as those produced in other parts of the world.
  • High - performance design: The company's vacuum relays are designed with high - performance in mind. They have excellent electrical characteristics, such as low contact resistance and high insulation resistance, which can meet the requirements of high - end applications.
  • Good product consistency: Siemens has strict quality control measures to ensure the consistency of its vacuum relays. Every product that leaves the factory has the same high - quality performance, which is very important for large - scale industrial applications.


Company Advantages

  • Global brand influence: Siemens is a globally recognized brand. Its products are trusted by customers around the world. This brand influence gives it a strong competitive edge in the Chinese market.
  • Comprehensive service system: The company provides a comprehensive service system, including pre - sales consultation, after - sales maintenance, and technical support. It can quickly respond to customer needs and solve problems.
  • Continuous investment in R & D: Siemens continuously invests in R & D to improve the performance and functionality of its vacuum relays. It keeps up with the latest technological trends and develops new products to meet the changing market demands.


7. ABB (China) Ltd.

ABB is another international giant in the electrical and automation field. It has a wide range of products and solutions in China.


Features in Vacuum Relay

  • Energy - efficient design: ABB's vacuum relays are designed with energy - efficiency in mind. They consume less power during operation, which helps to reduce energy costs in electrical systems.
  • High - precision control: The company's vacuum relays can achieve high - precision control. They can accurately control the switching of electrical circuits, which is very important for some applications that require high - precision control, such as in automation systems.
  • Good environmental adaptability: ABB's vacuum relays can adapt to different environmental conditions, such as extreme temperatures, humidity, and altitude. This makes them suitable for a wide range of applications in different regions.


Company Advantages

  • Global R & D and manufacturing network: ABB has a global R & D and manufacturing network. It can share resources and technologies across different regions, which helps to improve the quality and performance of its products.
  • Strong technical support: The company provides strong technical support to its customers. It has a team of professional engineers who can provide on - site technical guidance and solve technical problems in a timely manner.
  • Sustainable development concept: ABB adheres to the concept of sustainable development. Its products are designed to be environmentally friendly and energy - efficient, which is in line with the current global development trend.


8. Schneider Electric (China) Co., Ltd.

Schneider Electric is a well - known French company with a large - scale operation in China. It is committed to providing high - quality electrical solutions.


Features in Vacuum Relay

  • Modular design: Schneider Electric's vacuum relays feature a modular design. This makes it easy to install, maintain, and upgrade the relays. Customers can choose different modules according to their specific needs, which improves the flexibility of the electrical system.
  • High - safety performance: The company's vacuum relays are designed with high - safety performance in mind. They have multiple safety protection mechanisms, such as over - current protection and over - voltage protection, to ensure the safe operation of the electrical system.
  • Good communication interface: Schneider Electric's vacuum relays are equipped with good communication interfaces. They can be easily connected to other electrical equipment and control systems, enabling seamless integration in intelligent electrical systems.


Company Advantages

  • Rich industry experience: Schneider Electric has decades of experience in the electrical industry. It has a deep understanding of the market and customer needs, which allows it to develop products that are highly suitable for different applications.
  • Comprehensive product portfolio: The company offers a comprehensive product portfolio, including vacuum relays, circuit breakers, and other electrical equipment. This allows customers to get all - in - one electrical solutions from Schneider Electric.
  • Strong brand image: Schneider Electric has a strong brand image in the market. Its products are known for their high quality and reliability, which gives it a competitive advantage in the Chinese market.


9. Toshiba (China) Co., Ltd.

Toshiba is a well - known Japanese company with a long - standing presence in the electrical and electronics field. Its operations in China also cover a wide range of products.


Features in Vacuum Relay

  • Advanced material technology: Toshiba uses advanced material technology in the production of vacuum relays. The materials used for contacts and insulation have excellent performance, which helps to improve the electrical performance and service life of the relays.
  • High - speed response: The company's vacuum relays can achieve high - speed response. They can quickly switch on and off electrical circuits, which is very important for some high - speed electrical applications, such as in high - frequency communication systems.
  • Good heat - dissipation design: Toshiba's vacuum relays have a good heat - dissipation design. This can effectively dissipate the heat generated during operation, ensuring the stable operation of the relays in high - power applications.


Company Advantages

  • Advanced R & D capabilities: Toshiba has advanced R & D capabilities. It continuously invests in R & D to develop new technologies and products. Its R & D achievements are often at the forefront of the industry.
  • Quality - oriented production: The company adheres to a quality - oriented production philosophy. It has strict quality control measures at every stage of production to ensure that the products meet high - quality standards.
  • Good after - sales service: Toshiba provides good after - sales service to its customers. It has a professional after - sales service team that can quickly respond to customer needs and solve problems.


10. Mitsubishi Electric (China) Co., Ltd.

Mitsubishi Electric is a well - known Japanese company with a wide range of products in the electrical and industrial fields.


Features in Vacuum Relay

  • High - reliability and durability: Mitsubishi Electric's vacuum relays are known for their high - reliability and durability. They can operate stably for a long time in harsh environments, which is very important for industrial applications.
  • Advanced control technology: The company uses advanced control technology in its vacuum relays. This allows for precise control of the switching process, improving the overall performance of the electrical system.
  • Good compatibility with other equipment: Mitsubishi Electric's vacuum relays are highly compatible with other electrical equipment. They can be easily integrated into existing electrical systems, which is very convenient for customers.


Company Advantages

  • Strong R & D and manufacturing capabilities: Mitsubishi Electric has strong R & D and manufacturing capabilities. It can develop and produce high - quality vacuum relays with advanced technology and strict quality control.
  • Global brand recognition: The company has a high - level of global brand recognition. Its products are trusted by customers around the world, which gives it a strong competitive edge in the Chinese market.
  • Comprehensive technical support: Mitsubishi Electric provides comprehensive technical support to its customers. It can offer technical training, on - site installation guidance, and after - sales maintenance services.


Conclusion

The top 10 vacuum relay factories in China, including both domestic and international companies, play an important role in the development of the vacuum relay industry. These companies have their own unique features and advantages in terms of technology, quality, and service. Domestic companies such as Jingdezhen Wanping Electric, Xuji Group, and Changshu Switchgear Manufacturing have strong local advantages and are constantly improving their technological level and product quality. International companies like Siemens, ABB, and Schneider Electric bring advanced technology and global management experience to the Chinese market. With the continuous development of the electrical industry, these companies will continue to innovate and improve their products, providing high - quality vacuum relays for various industries and promoting the development of the entire industry.