8000B series improved general purpose VFD is a set of new products with optimization based on 8000 series. Its performance has been greatly improved and become the best selection for mechanical performance speed controlling. This series of products is not only applicable to regular fans and pumps, but also applicable to the occasions with heavy load and fast response requirements. Guangzhou Sanjing Electric Co., LTD (hereinafter referred to as SAJ) is a state-level high-tech enterprise specially focusing on motor drive and control technology, renewable energy conversion, transmission and storage solutions, dedicating to establish itself as a service provider of digital building energy management. Established in 2005, with a registered capital of 50.4 million RMB, SAJ has a strong Research & Development and technical service team.