Abstract: A vacuum switch which includes two identical facing switch contacts equipped with a cup shaped coil body that is provided with annular contact elements covering the open end of the cup shaped coil body. In order to form turn conductors, the coil body is penetrated by a plurality of throughgoing slots which are inclined relative to the axis and are distributed symmetrically over the circumference of the coil body. A supporting ring is disposed in the cavity between the bottom of the coil body and the contact element which is formed of circular ring sectors. In order to realize high protection against arcbacks, four of the throughgoing slots are provided and are inclined at an angle between 60.degree. and 75.degree. relative to the axis and extend in the circumferential direction between the contact element and the cup bottom at most over a rotation angle between 60.degree. and 90.degree..

Abstract: A contact arrangement for a vacuum switch having a switch axis along which switch contacts move. Two identically configured switch contacts are relatively movable opposite to one another along the switch axis. Each switch contact includes: a contact pin for connecting the switch contact with a switch terminal; a contact plate; and a coil body for generating an axial magnetic field. The coil body has at least one winding section extending circumferentially parallel to the contact plate and has a first end connected with the contact plate and a second end connected by an approximately radial conductor section with the contact pin. The side of the winding section facing the contact plate lies continuously against the contact plate and is connected with the contact plate in a conductive manner over the entire length of the winding section.

Abstract: A vacuum switch which has a housing for a vacuum chamber. The housing includes a metal cylinder and an insulating cylinder axially aligned and hermetically sealed at adjacent ends, and closed at opposite ends by end walls. A stationary electrode and a movable electrode are provided in the vacuum chamber, surrounded by the metal cylinder. Stationary and movable electrode lead rods are fixed to the respective electrodes and project in opposite directions from the chamber through the end walls. A magnetic coil whose coil body is molded in an approximately bell-shape and is made of an electrically and thermally conductive material, surrounds the metal cylinder with a winding that is connected by way of an input lead with the electrode lead rod penetrating the end wall closing an end of the metal cylinder. A relatively thick top portion of the coil body is disposed above the end wall and has a rounded upper end, while a less thick cylindrical side wall surrounds the metal cylinder and has a rounded lower end.