This series of 40.5KV high-pressure vacuum contactor is a new product developed by our company according to market demand. The selection of good vacuum switch tube, the use of today's international popular up and down arrangement of the assembly mechanism, small size, light weight, easy to use and stable performance, suitable for metallurgy, mining, petrochemical and other departments and factories and mines of the power distribution system, used to control 40.5KV and 40.5KV below the level of high-voltage motors, transformers and capacitive load and other electrical equipment, as the main switch, to achieve remote control, stable and reliable performance. There are two types: permanent magnet structure and electric hold.