Control electrical appliances can be divided into two main categories based on their operating voltage: high-voltage control electrical appliances and low-voltage control electrical appliances, with AC 1200V and DC 1500V as the dividing line. Appliances operating at AC 1200V and below, and DC 1500V and below, are all referred to as low-voltage electrical appliances.
The development of low-voltage electrical appliances depends on the development of the national economy and the needs of modern industrial automation, as well as the research and application of new technologies, processes, and materials. Currently, they are developing towards high performance, high reliability, miniaturization, digitalization, modularization, combination, and component standardization.
