Direct-actuated three position switch

The utility model relates to a direct actuated three position switch used for a for an SF-[6] gas insulated metal sealing switch device. The utility model is characterized in that spring electric conducting contact fingers are installed on static contact heads, middle contact heads and in corresponding grooves of static contact heads in couples respectively, the middle contact heads are installed on the wire outlet end of a circuit breaker through screws, the static contact heads are fixed on a branch bus and a boss of an insulating sleeve of the circuit breaker, direction guiding screws are screwed in corresponding screw holes on the middle contact heads, moving contact heads are inserted in the middle contact heads, the direction guiding screws are ensured to be inserted into direction guiding grooves on the moving contact heads, the breaker is fixed on an installing plate with screws, the static contact heads, a grounding terminal, a short connection terminal and the installing plate are arranged on the installing plate orderly, screw rods are inserted into holes on the static contact heads and are screwed in the moving contact head, and one end a sealing coupling is connected to the screw rods through pins and is fixed on the installing plate. The utility model has the advantages that the breaker is used as an element for turning on and turning off electric current, the three position switch is only required to complete an electric connection work, the movements of the moving contact heads are driven by screws and moves along the axial direction, the operational mechanism is simple, and the reliability is raised.