What is the main function of low-voltage fuse is? A: The main is to achieve short-circuit protection and low voltage distribution systems, and some are able to achieve its overload protection. What is the main function of low voltage knife switch is? A: The no-load operation, for isolation switch. What low-voltage fuse switch and load switch main functions? A: The low-voltage fuse switch has a dual function knife switch and fuse. The main function of effective load switch off load current, low voltage switch cabinet Xiping principle, can short-circuit protection. What is the main function of low voltage circuit breaker? A: both off-load circuit, can automatically trip the short circuit, overload and loss of pressure. MCB SZRB2-32SZRB2-32 series MCB for AC 50Hz and 60Hz, low voltage switch cabinet principle Wugang City, rated voltage of 230V single-phase residential lines, low voltage, electrical lines overload and short circuit protection. The product is high breaking capacity, small size, width of only 18mm. Zero, FireWire and cut off, to eliminate the personal and fire hazard FireWire, zero line reversed or zero line to ground tell a stranger, is currently the best residential areas of distribution protection switch. This product complies with IEC60898-1 and GB10963.1 standards. Zhoukou low voltage switch cabinet principle, learning Connaught Electrical and Mechanical (online consultation), low voltage is provided by habit Connaught Mechanical and Electrical Equipment Co., Ltd., Henan. Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) is Zhengzhou, electronics, electrical products processing leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In practice Connaught Electrical and Mechanical leadership with the staff warmly welcome all inquiries negotiations to create learning Connaught Electrical and Mechanical better future.