In an embodiment a switching device includes at least two fixed contacts and one movable contact in a switching chamber and at least two auxiliary contacts, two spring contacts and a contact plate in the switching chamber, wherein each of the spring contacts contacts one of the auxiliary contacts with a first contact region and has a second contact region, wherein the contact plate is movable together with the movable contact, and wherein the contact plate is configured to contact the second contact regions of the spring contacts in a first switching state of the switching device and is configured to be arranged at a distance from the second contact regions of the spring contacts in a second switching state.

Disclosed is a method of resistance welding between composite articles. A conductive element is provided between faying surfaces, having a plurality of lower resistivity electrode portions spaced apart along the length of the contact area between the composite articles. The electrode portions can be used to spot weld across the electrode portions, and along a longitudinal portion of the conductive element between the electrode portions by application of an electrical current. Also disclosed are apparatus for use in the resistance welding methods and composite articles and structures and elements incorporating the conductive element.

A circuit breaker includes an electrically insulative case and a rotor assembly disposed within the electrically insulative case. The rotor assembly includes a contact arm and a rotor that is rotatable relative to the electrically insulative case. The contact arm is coupled to the rotor and movable between a first position in which a conductive path is closed and a second position in which the conductive path is open. The rotor assembly also includes a latch mechanism coupled to the rotor. The latch mechanism retains the contact arm in the second position during a short circuit event. The latch mechanism is spaced from the contact arm when the contact arm is in the first position. The latch mechanism engages the contact arm when the contact arm is in the second position.

A rotating dual break point contact includes a rotor support, a first shaft, a second shaft, a third shaft, a first connection rod, a second connection rod, a contact bridge and a contact spring. The contact bridge is provided in the rotor support, and the contact bridge rotates relative to the rotor support by means of the first shaft, the second shaft, the third shaft, the first connection rod and the second connection rod. The contact bridge rotates between an initial pressure position and a maximum repulsion position. A single contact spring is mounted on one side of the contact bridge and is located in the rotor support.

A switching device has a switching chamber; a plate-like switching element, which can be moved in the switching chamber along a linear movement axis (Z) between an ON position in which the switching element connects fixed contacts to one another, and an OFF position in which the switching element is at a distance from the fixed contacts; an actuator for linear movement of the switching element inside the switching chamber; and spring(s) which prestress the switching element in the direction of the movement axis (Z). Guides are provided and configured so the switching element in the switching chamber is guided along the movement axis (Z) in a linearly movable manner and held so a main axis (N) of the switching element, which runs perpendicularly with respect to the two main extension directions (X, Y) of the switching element, is oriented at least substantially parallel to the movement axis (Z).

A switching device has a switching chamber; a plate-like switching element, which can be moved in the switching chamber along a linear movement axis (Z) between an ON position in which the switching element connects fixed contacts to one another, and an OFF position in which the switching element is at a distance from the fixed contacts; an actuator for linear movement of the switching element inside the switching chamber; and spring(s) which prestress the switching element in the direction of the movement axis (Z). Guides are provided and configured so the switching element in the switching chamber is guided along the movement axis (Z) in a linearly movable manner and held so a main axis (N) of the switching element, which runs perpendicularly with respect to the two main extension directions (X, Y) of the switching element, is oriented at least substantially parallel to the movement axis (Z).

A switching device, for the on-off switching of a current passing through a current path, has at least one fixed contact and at least one movable contact, wherein the movable contact can be moved relative to the fixed contact for making or breaking the current path, and a drive for the functional movement of a jumper between a contact-making position and a contact-breaking position. In the contact-making position with the fixed contact, the movable contact makes the current path. The switching device includes a high-speed circuit breaker for breaking the current path in the event of a short circuit or overload, wherein the armature of the high-speed circuit breaker is rigidly coupled to the movable contact.

A switching device, for the on-off switching of a current passing through a current path, has at least one fixed contact and at least one movable contact, wherein the movable contact can be moved relative to the fixed contact for making or breaking the current path, and a drive for the functional movement of a jumper between a contact-making position and a contact-breaking position. In the contact-making position with the fixed contact, the movable contact makes the current path. The switching device includes a high-speed circuit breaker for breaking the current path in the event of a short circuit or overload, wherein the armature of the high-speed circuit breaker is rigidly coupled to the movable contact.

An electrical contact switch chamber is disclosed. The electrical contact switch chamber includes two contacts, a wall having a base and sides surrounding the two contacts, and at least one insulation slot having an opening extending transversely relative to a direction between the contacts. The at least one insulation slot is disposed along a portion of the wall between the two contacts.

An electrical contact switch chamber is disclosed. The electrical contact switch chamber includes two contacts, a wall having a base and sides surrounding the two contacts, and at least one insulation slot having an opening extending transversely relative to a direction between the contacts. The at least one insulation slot is disposed along a portion of the wall between the two contacts.