A vacuum chamber contact assembly includes a vacuum housing assembly, a conductor assembly, and an operating mechanism. The vacuum housing assembly defines a sealed enclosed space. The conductor assembly includes a first stationary conductor assembly, a second stationary conductor assembly, and a movable conductor assembly. The operating mechanism includes a number of stationary components, a number of movable components and an actuator/latch assembly. The movable conductor assembly and the operating mechanism movable components are disposed entirely within the vacuum housing assembly enclosed space. The actuator/latch assembly includes an open, first latch unit and a close, second latch unit. The actuator/latch assembly is structured to maintain the movable conductor assembly in both the first position and the second position.

The invention relates to a vehicle horn control system, installed on the steering wheel of a vehicle, comprising: a base part (10), a control device (52), which can move relative to the base part between a rest position and a depressed position, shock-absorbing means comprising a deformable part (31) made from an elastomer material, said means being arranged between the base part and the control device in order to absorb vibrations; and an electric circuit with at least one closed switch when the control device is in the rest position.

The invention relates to a vehicle horn control system, installed on the steering wheel of a vehicle, comprising: a base part (10), a control device (52), which can move relative to the base part between a rest position and a depressed position, shock-absorbing means comprising a deformable part (31) made from an elastomer material, said means being arranged between the base part and the control device in order to absorb vibrations; and an electric circuit with at least one closed switch when the control device is in the rest position.

An electromagnetic relay includes a housing, a pair of fixed terminals, a movable contactor that is movably disposed so as to approach and separate from a fixed contact placement surface of each of the pair of fixed terminals, a movable shaft capable of moving in conjunction with the movable contactor, electromagnetic drive unit that drives the movable shaft to move the movable contactor in a moving direction, and an attenuation mechanism unit that includes an insulating attenuation member disposed between the movable contactor and the electromagnetic drive unit, and a sound insulating gap provided between the attenuation member and the electromagnetic drive unit.

An assembly and a method for damping contact bounce in high-voltage circuit breakers include a vacuum interrupter and a holder for the vacuum interrupter. The vacuum interrupter includes a housing, at least one movable contact piece and at least one fixed contact piece. At least one mass body is mechanically connected to the at least one fixed contact piece in order to effect damping of the contact bounce between the at least one fixed contact piece and the at least one movable contact piece during a switch-on operation of the high-voltage circuit breaker.

A vacuum chamber contact assembly includes a vacuum housing assembly, a conductor assembly, and an operating mechanism. The vacuum housing assembly defines a sealed enclosed space. The conductor assembly includes a first stationary conductor assembly, a second stationary conductor assembly, and a movable conductor assembly. The operating mechanism includes a number of stationary components, a number of movable components and an actuator/latch assembly. The movable conductor assembly and the operating mechanism movable components are disposed entirely within the vacuum housing assembly enclosed space. The actuator/latch assembly includes an open, first latch unit and a close, second latch unit. The actuator/latch assembly is structured to maintain the movable conductor assembly in both the first position and the second position.

A circuit breaker comprises a switch and an actuator comprising a displaceable shaft mechanically connected to a movable contact in the switch. A Thomson coil is adapted to displace the shaft in a first direction, and a disconnecting device is connected in series with the switch and that is adapted to open during an interval when current is extinguished. An energy storage is provided being a separate part from the shaft and being adapted to store energy when the shaft moves in the first direction and to release energy to displace the shaft in a second direction, comprising a mass-spring arrangement with a body, a first spring between the shaft and one end portion of the body at a side facing the shaft and a second spring at a first end portion connected to a side of the body facing from the shaft and at second end portion being fixed. The movement of the body continues undisturbed to achieve a time interval wherein a current is extinguished. A current-interrupting arrangement for a circuit breaker is provided that has a simple mechanical construction and which can handle the problem at closing-in into a permanent fault in an adequate way.

A key arrangement includes an activation element, a switch, a mechanical counterforce generating device, and a permanent magnet arrangement. The switch has at least a first state and a second state. The activation element has a basic state and an activation state and is configured to, in case of activation by a user, permit a movement from the basic state into the activation state, and in case of the movement into the activation state to permit a change in the state of the switch. The mechanical counterforce generating device is configured to generate, in case of an activation of the activation element, a first counterforce at least in certain areas. The permanent magnet arrangement is configured to generate, in case of activation of the activation element, a second counterforce at least in certain areas.

Various embodiments may include a coupling element for an electrical switching device comprising: a first switching contact for opening and closing an electrical contact; a second switching contact; a push rod mounted to translate along a longitudinal axis; an actuator connected to the push rod causing the push rod to translate; a pulse mass element; and a spring element coupling the pulse mass element to the push rod. The first switching contact is connected to the push rod.

Various embodiments may include a coupling element for an electrical switching device comprising: a first switching contact for opening and closing an electrical contact; a second switching contact; a push rod mounted to translate along a longitudinal axis; an actuator connected to the push rod causing the push rod to translate; a pulse mass element; and a spring element coupling the pulse mass element to the push rod. The first switching contact is connected to the push rod.