Outdoor high pressure vacuum load switch is a new type of load switch which is designed and manufactured by combining the mature experience of domestic and foreign advanced technology.The load switch is composed of isolation knife, vacuum arc extinguishing chamber and operating mechanism.Adopting the principle of vacuum arc extinguishing chamber, it has the advantages of strong arc extinguishing ability, reliable performance, long life, small volume, no explosion risk, no pollution and so on.The vacuum load switch can be used as control equipment in transmission and distribution system of electric power, metallurgy, mining, chemical industry and so on. It is especially suitable for places requiring frequent operation.