VACUUM VALVE

PROBLEM TO BE SOLVED: To provide a vacuum valve of a type having an electric field act on an electrode which can improve breaking performance without curtailing current conducted. SOLUTION: A magnetic substance 19 is buried inside at least one electrode 18 of the pair of electrodes having a contact point 9. A part of the magnetic substance 19 is inserted and arranged at a hollow part formed at the end part of a movable shaft 20 bonded to the electrode 18. A spiral-shaped part 20b compartmentalized with slanted slits 20a independent from each other is formed at an outer periphery in the vicinity of the movable shaft 20 where the magnetic substance is located. With this, magnetic field in the direction of the shaft generated by current flowing the spiral-shaped part 20b is introduced toward the direction of the contact point 9 by the magnetic substance 19.