A switchgear comprising: - a fixed contactor provided in a tank filled with insulating gas; and - a movable contactor provided in the tank, the movable contactor being connected to and disconnected from the fixed contactor so as to move forward and backward, - the switchgear comprising: - a first arc extinction member including a surrounding portion which is slidably connected to the outer circumferential surface of the movable contactor halfway in a movement range from a closed contact state to an open contact state, and is formed so as to surround an arc space portion in a sealed manner, the surrounding portion being formed with a through hole through which the arc space communicates with the outside of the arc space, wherein the fixed contactor comprises: a cylindrically shaped fixed arc contact provided in a central portion thereof; and a fixed main contact disposed on an outer circumferential portion of the fixed arc contact via a gap, wherein the first arc extinction member is fixed to a fixed side shield on the separating direction side of the movable contactor, the fixed side shield being formed so as to surround the fixed main contact, and wherein the surrounding portion, which is slidably connected to the outer circumferential surface of the movable contactor, is formed so as to extend in the separating direction of the movable contactor, characterized by: further comprising a second arc extinguishing member in either a) a central portion of the fixed arc contact, or b) a central portion of the movable contactor, wherein the second arc extinguishing member is constituted from a material which creates an arc extinguishing gas when exposed to an arc. - a fixed contactor provided in a tank filled with insulating gas; and - a movable contactor provided in the tank, the movable contactor being connected to and disconnected from the fixed contactor so as to move forward and backward, - the switchgear comprising: - a first arc extinction member including a surrounding portion which is slidably connected to the outer circumferential surface of the movable contactor halfway in a movement range from a closed contact state to an open contact state, and is formed so as to surround an arc space portion in a sealed manner, the surrounding portion being formed with a through hole through which the arc space communicates with the outside of the arc space, a cylindrically shaped fixed arc contact provided in a central portion thereof; and a fixed main contact disposed on an outer circumferential portion of the fixed arc contact via a gap, wherein the first arc extinction member is fixed to a fixed side shield on the separating direction side of the movable contactor, the fixed side shield being formed so as to surround the fixed main contact, and wherein the surrounding portion, which is slidably connected to the outer circumferential surface of the movable contactor, is formed so as to extend in the separating direction of the movable contactor, further comprising a second arc extinguishing member in either a) a central portion of the fixed arc contact, or b) a central portion of the movable contactor, a) a central portion of the fixed arc contact, or b) a central portion of the movable contactor, wherein the second arc extinguishing member is constituted from a material which creates an arc extinguishing gas when exposed to an arc.