Development and Market Analysis of Low Voltage Circuit Breaker

1. Overview
Low voltage circuit breakers are used for making and breaking, controlling or protecting circuits with AC voltage of 1200V and DC voltage of 1500V. Low voltage circuit breaker is an important part of the electrical industry and a basic accessory in the mechanical industry. In the distribution system, the low-voltage complete switchgear is mainly composed of various low-voltage circuit breaker elements. The function and performance of low-voltage circuit breaker play a vital role in low-voltage complete switchgear. More than 80% of the electric energy generated by power generation equipment is distributed and used through low-voltage circuit breakers. Each additional 10000 kW power generation equipment requires about 20000 pieces of low-voltage circuit breakers. In the industrial automation system, various control panels, consoles, controllers, etc. composed of low-voltage circuit breakers are also required< Br>
Since 1949, China's low-voltage circuit breaker industry has gradually developed into an industry capable of independent design and production on the basis of some simple electrical equipment repair and assembly plants. By 1979, there were more than 600 manufacturers. After two development peaks from 1985 to 1986 and from 1990 to 1991, there were about 1500 manufacturers in the low-voltage circuit breaker industry in 1995< Br>
At present, China's low-voltage circuit breaker manufacturers are mainly concentrated in Beijing, Tianjin, Liaoning, Shanghai, Jiangsu, Zhejiang, Guangdong and other places. While promoting the development of the national economy, they also exposed many problems. There are mainly the following two points:

1.1 The scale of enterprises is too small and the number is too large. At present, there are only 2-4 large-scale enterprises with annual sales revenue and total assets of more than 500 million yuan among low-voltage circuit breaker manufacturers in China, most of which are small and medium-sized enterprises, resulting in the lack of economies of scale and competitiveness; In addition, the number of low-voltage circuit breaker manufacturers in China has grown from the early days of the founding of the People's Republic of China to more than 1500 today. The number of enterprises is too large, resulting in excessive dispersion of economic resources and lack of overall innovation power, leading to low production efficiency, economic benefits and market competitiveness< Br>
1.2 Regional structure convergence and repeated construction are serious. The low voltage electrical appliances industry in China has been blindly involved in projects and stalls, which has resulted in serious regional industrial convergence and low-level repeated construction, resulting in excessive production, low utilization of energy and raw materials, low economic benefits, regional protection, vicious competition and other consequences< br>