In the field of industrial control, control appliances are divided into two categories: high-voltage control appliances and low-voltage control appliances according to the working voltage, with AC 1200V and DC 1500V as the boundary. Circuit breakers, fuses, contactors, starters, solenoid valves, resistors, relays, etc. are all low-voltage electrical appliances, which are the basic components of complete sets of electrical equipment, which are widely used in industry, agriculture, transportation, national defense and other fields, and provide reliability for low-voltage power supply systems.　

Low-voltage electrical appliances in China has more than 50 years of development history, with the development of economic construction, low-voltage electrical appliances from the introduction of digestion to innovation, every step is particularly critical.　

According to relevant statistics, in 2011, China's sales of low-voltage electrical appliances increased by 15% compared with 2010, and the annual production and sales growth of enterprises accounted for about 75% of the entire industry, and the production and sales of many outstanding enterprises in the industry increased by more than 30%.　　

In terms of exports, the coastal area is developing relatively fast, especially in Wenzhou, according to the export volume, Guangdong Province is far away, in 2011, the top exports of low-voltage electrical appliances were Guangdong 2.67 billion US dollars, Zhejiang 790 million US dollars, Shanghai 630 million US dollars, the sum of the three reached 79% of the total export of low-voltage electrical appliances.　　

Affected by the pressure of rising raw material costs and labor costs, industry competition is becoming more and more intense, and the profitability of enterprises with weak competitiveness and poor cost control ability has declined to varying degrees.　　

The "Twelfth Five-Year Plan" will be a good opportunity for China's low-voltage electrical industry to pick up and achieve technological breakthroughs, bringing a spring breeze of growth to market demand, but it also makes many large foreign enterprises increase their investment in the field of low-voltage electrical appliances, and at the same time of developing high-end products, they have also entered China's low-end market, resulting in more fierce competition in the industry.　　

Analysts said that the development opportunities and crises of the low-voltage electrical industry coexist, but the idea of organic in crisis has always guided the pace of China's low-voltage electrical enterprises, in the survival competition, innovation is the topic, but also the key to competition.　　

As a member of the low-voltage electrical appliances, under the guidance of the intelligent trend, the circuit breaker has moved towards the high-end route, and the domestic circuit breaker companies have also grasped the two keywords of "innovation" and "intelligence", and increased technical investment in product research and development to create exclusive products. The LW-252 sulfur hexafluoride circuit breaker developed by the Technology Center of Henan Pinggao Group has broken the long-term technological monopoly of multinational companies in this field in China.

This circuit breaker has a double-action arc extinguisher, relying on exquisite mechanical cooperation, to achieve the real sense of dynamic and static contact two-way linkage, greatly reducing the requirements for the operation function, is the future development direction of sulfur hexafluoride circuit breaker, for the future higher voltage level circuit breaker structure optimization and with miniaturized hydraulic mechanism and spring mechanism to lay a solid foundation.　　

From the smart grid to the new energy industry, from the power industry to the petrochemical industry, the application of low-voltage electrical appliances in China's industrial field has spanned many levels, from the initial simple assembly to today's intelligent products, which also means that the future low-voltage electrical industry will meet more intelligent changes.　　

Domestic low-voltage electrical enterprises should stop the embarrassing and tragic price war, give full play to the advantages of localization, do a good job in the products, improve the technical level, in the period of market reshuffle, think more about how to stand in the reshuffle, how to strengthen the key market, integrate resources, through product portfolio, design, technical connotation and service model to change the fate.