Ningbo Tongda Electric Apparatus Switches Factory is specialized in the production of high and low voltage switch equipment. The main products are 3-35KV high voltage switch cabinet, various kinds of low voltage switch cabinet, 10-35KV high voltage elements, SMC (DMC) insulation panel and structure components and components of various kinds of elevator and automatic staircase. The factory cooperated with Xian High Voltage Electric Apparatus Institute and is the first factory lectric Apparatus. Sn10-35 oil circuit breaker won the Third Prize of Science Promotion Reward. JYN1-35(NW) insulation panel gets national patent and the factory has passed ISO9000 Certificate.
