Relays are an important role in the application of automation control. In recent years, the market competition has become increasingly fierce, and various relay companies are scrambling to launch the latest differentiated products, making relays beyond the traditional concept of simple time-domain basic components, especially high-end products. The emergence of products with advanced technology and performance indicators has provided a broad stage for relays.

According to statistics, there are nearly 300 relay companies in my country, most of which are producing low-cost electromechanical relays, and only a few companies are expanding the production scale of high-end relays. my country's relay production capacity is constantly improving, the pace of innovation is accelerating, and the international competitiveness is also increasing. Whether it is at the industrial level or the enterprise level, it has a certain competitive strength, and my country has entered the ranks of the world's largest relay industry. However, there is still a big gap between domestic enterprises and international manufacturers, which is mainly reflected in the generally small scale of enterprises, weak profitability, low level of R&D investment, and insufficient innovation ability.