Legrand is a global specialist in electrical and intelligent building systems and the world's largest manufacturer of switches and sockets, with a global market share of 19%, sales of approximately 5.5 billion euros in 2017, and 130,000 models in more than 80 categories sold in 180 countries.
 
Since 2007, Legrand wholly acquired TCL's low-voltage business unit, and expanded its business to the field of low-voltage power distribution products, operating 50 commercial brands, Legrand, TCL-Legrand, Shidean and Carbofield are all core brands with good reputation and high reputation, and circuit breaker products belong to the Legrand brand, which plays the role of safety protection in the building electrical installation network.
 
Legrand's broad electrical product line includes switches and sockets, circuit breakers, cables and intelligent systems, and holds more than 3,700 patents for the electrical industry. Every year, Legrand invests 4-5% of its sales in R&D and 60% of its investments in new products in key markets. With high R&D investment and good product performance, Legrand has won the Aiwei Award for its TX3 modular circuit breaker, DRX molded case circuit breaker and other series of products, which is known as the "Oscar" award in the low-voltage electrical industry, full of gold.
 
The RX3 series is the latest generation of circuit breaker products developed by Legrand for Chinese home users, which has passed ISO9001 and ISO14001 certification, meets Chinese and EU quality standards, and is safe and secure, and has the function of overload, short circuit and leakage protection against circuits. RX3 series has air switch and leakage protection switch, the number of poles are 1P and 2P optional, the rated current covers from 10A to 63A a total of seven gears, although 3P, 4P and other large pole products are lacking, but the general family is also less used, providing a variety of rated current levels is more important, obviously Legrand in this area is not bad.
 
The operation short-circuit breaking capacity, 3-level current limiting level and 10,000 times electrical life of RX3 circuit breaker 6kA are higher than the national standard, and there are 10 arc extinguishing grids for eliminating arcs, which is one more than the national standard, and the safety is stable and improved. But after all, the electrical business is not Legrand's fist field, lagging behind the first-line brands in terms of ease of use, friendly designs such as visual windows have not been involved, the price is nearly twice that of Delixi and Zhengtai, and the price of 1P10A air switch starts at 22 yuan, and the cost performance is average.