Abstract: A switch device for switching an electrical connection between two connection parts is disclosed. Conventional switch devices comprise a contact lever having a switch contact, the flow of current taking place by way of the contact lever when the switch device is closed. To achieve a rapid switching process, a low mass inertia of the contact lever is required. However, this generally leads to a lower current capacity. By arranging the lever-side switch contact on a separate electrical connection device, it becomes possible to separate the function of current conduction from the function of contact guidance. Since the contact lever therefore no longer performs any current-conducting function, it may be optimized in mechanical respects exclusively.

Abstract: An arcing chamber system having one or more chamber bodies connected in series, wherein one or more arcing chamber modules, are arranged in each chamber body is present. A plurality of arcing chamber modules may be employed to achieve for various contact ratings. This allows the arcing chamber system of the present invention to be adapted, in simple fashion, to a variety of working voltages and a variety of contact ratings.

Abstract: The invention pertains to a contact lever for an electrical switch designed for automatic adjustment of the main contacts. During assembly the pivot shaft is inserted in an oblong opening in the contact lever. The switch position is changed from open to closed by rotating the contact lever on the pivot shaft. The pivot shaft includes two conically extending shoulders that correspond in shape to chamfers located at the edge of the oblong opening. The conical shoulders and chamfers comprise a portion of the bearing surface between the contact lever and the pivot shaft. A sliding bearing pair is formed during switch operation wherein the contact lever is limited to a centrally aligned position in the open position and allowed additional freedom of motion at the end of the closing operation. The additional freedom of motion allows for precise automatic contact alignment.

Abstract: A switch having a contact lever and a compression member connected so as to bias the contact lever into a contact position. The contact lever includes a joint-receiving opening disposed therein. A bearing is insertable into the joint-receiving opening of the contact lever and supports a pivot which forms a connection between the compression member and the contact lever. The joint-receiving opening includes two portions configured one behind the other in the direction of compression of the compression member. The bearing is insertable into the first opening portion in a direction different from the direction of compression and then movable in the direction of compression to produce an interlock connection with the second opening portion of the opening.