An electrical switch, including an insulation base, an insulative-and-movable component, at least two output ports, and at least two transmission ports, is provided. The insulative-and-movable component is disposed on the insulation base and is adapted to operate between at least two switch positions relative to the insulation base. The two output ports are disposed on the insulation base. The two transmission ports are disposed on the insulative-and-movable component. When the insulative-and-movable component is located at one of the two switch positions, one of the two output ports is aligned with one of the two transmission ports and other one of the two output ports is misaligned with other one of the two transmission ports.

A breaking device for interrupting current includes an electrically conducting outer member, an electrically conducting inner member arranged radially inside the outer member with respect to a breaking axis and an electrically insulating or semiconducting breaking member arranged radially between the outer member and the inner member with respect to the breaking axis, where the breaking member is arranged to move along the breaking axis from a starting position to a protruding position in which the breaking member protrudes from a space within the outer member for interrupting a current between the outer member and the inner member and the breaking member includes an inner tubular element and an outer tubular element, where the outer tubular element is joined to an outer surface of the inner tubular element thereby defining a recess between the outer tubular element and the inner tubular element.

A breaking device for interrupting current includes an electrically conducting outer member, an electrically conducting inner member arranged radially inside the outer member with respect to a breaking axis and an electrically insulating or semiconducting breaking member arranged radially between the outer member and the inner member with respect to the breaking axis, where the breaking member is arranged to move along the breaking axis from a starting position to a protruding position in which the breaking member protrudes from a space within the outer member for interrupting a current between the outer member and the inner member and the breaking member includes an inner tubular element and an outer tubular element, where the outer tubular element is joined to an outer surface of the inner tubular element thereby defining a recess between the outer tubular element and the inner tubular element.

A power circuit breaker has a housing defining a first passage and a cross passage through the housing. A bus bar extends through the cross passage and is configured to transmit electric power and/or break transmission of the electric power through the housing. The bus bar includes at least an input section, a coin or center section, and an output section that are separable from each other. The housing aligns a solenoid piston within the first passage of the housing. The solenoid has a piston with two opposite ends, and one of the ends operates as a plunger to separate the sections of the bus bar when the solenoid is actuated. The plunger moves the coin or center section of the bus bar out of contact with the input section and the output section of the bus bar to break electrical transmission across the bus bar.

A power circuit breaker has a housing defining a first passage and a cross passage through the housing. A bus bar extends through the cross passage and is configured to transmit electric power and/or break transmission of the electric power through the housing. The bus bar includes at least an input section, a coin or center section, and an output section that are separable from each other. The housing aligns a solenoid piston within the first passage of the housing. The solenoid has a piston with two opposite ends, and one of the ends operates as a plunger to separate the sections of the bus bar when the solenoid is actuated. The plunger moves the coin or center section of the bus bar out of contact with the input section and the output section of the bus bar to break electrical transmission across the bus bar.

A breaking device for interrupting current, the breaking device including an electrically conducting outer member; an electrically conducting inner member arranged radially inside the outer member with respect to a breaking axis; and an electrically insulating or semiconducting breaking tube arranged radially between the outer member and the inner member with respect to the breaking axis, the breaking tube being arranged to move along the breaking axis from a starting position to a protruding position in which the breaking tube protrudes from a space within the outer member for interrupting a current between the outer member and the inner member by means of the breaking tube.

A breaking device for interrupting current, the breaking device including an electrically conducting outer member; an electrically conducting inner member arranged radially inside the outer member with respect to a breaking axis; and an electrically insulating or semiconducting breaking tube arranged radially between the outer member and the inner member with respect to the breaking axis, the breaking tube being arranged to move along the breaking axis from a starting position to a protruding position in which the breaking tube protrudes from a space within the outer member for interrupting a current between the outer member and the inner member by means of the breaking tube.

An electrical switch for interrupting a current path. The switch includes a contact point formed from a first and a second contact piece mounted such that it can move about a rotation axis. The contact point is closed when the two contact pieces are in contact and is electrically opened when the two contact pieces are not in contact. The electrical switch includes an actuator unit and an electrically non-conductive separating element which can be moved in a translatory manner by means of the actuator unit and is designed to isolate the two contact pieces and then to keep the two contact pieces apart. The actuator unit includes a movement element mechanically coupled to the separating element, a drive device designed to move the movement element in order to close the contact point, a device for generating and/or storing kinetic energy and an electromagnetic actuator.

An electrical switch for interrupting a current path. The switch includes a contact point formed from a first and a second contact piece mounted such that it can move about a rotation axis. The contact point is closed when the two contact pieces are in contact and is electrically opened when the two contact pieces are not in contact. The electrical switch includes an actuator unit and an electrically non-conductive separating element which can be moved in a translatory manner by means of the actuator unit and is designed to isolate the two contact pieces and then to keep the two contact pieces apart. The actuator unit includes a movement element mechanically coupled to the separating element, a drive device designed to move the movement element in order to close the contact point, a device for generating and/or storing kinetic energy and an electromagnetic actuator.

A DC circuit breaker includes a case, two fixed contacts, two movable contacts, a bypass plate electrically connecting the two movable contacts, a moving block to move the bypass plate, a moving block biasing member to bias the moving block in a direction away from the fixed contacts, a thermally responsive member, a latch, a shutter, and a shutter biasing member. The thermally responsive member deforms when an installation surface equals or exceeds a prescribed temperature. The latch restricts movement of the moving block by locking the moving block when the thermally responsive member is in a pre-deformation state. The latch cancels the restriction of the movement the thermally responsive member deforms. The shutter is insertable between the fixed contacts and the movable contacts. The shutter biasing member constantly biases the shutter in a direction to be inserted between the fixed contacts and the movable contacts.