A switching device and apparatus for switching on suddenly has an actuating mechanism element operatively connected to a latching mechanism by a transmission mechanism, The latching mechanism operates a switching lever through a further transmission mechanism. A contact assembly has a fixed switching piece facing a moveable switching piece that is guided in a contact slide. In the latching mechanism, a lever is arranged in operative connection with a locking part that is operatively connected to a transmission element which acts on the moveable switching piece.

A switch device includes a lock component and a crossbar. The crossbar is configured to open or close electric contacts. The crossbar includes a lock receiving section for receiving the lock component after the switch device is turned to an ON position for a period of time. The lock component is disengaged from the lock receiving section after the period of time to allow the crossbar jump upwards to close the electric contacts quickly.

A high power, single-use electrical switch includes a spring-biased plunger contact that mates with a corresponding socket contact, a spacer that provides a separation clearance between the contacts prior to activation of the switch, and a shear tab that supports the spacer and is removed from the switch to enable engagement between the contacts and activation of the switch. Using the shear tab for activation of the switch enables a compact and small form factor assembly that is suitable for use in smaller electronic assemblies.

A switch device includes a lock component and a crossbar. The crossbar is configured to open or close electric contacts. The crossbar includes a lock receiving section for receiving the lock component after the switch device is turned to an ON position for a period of time. The lock component is disengaged from the lock receiving section after the period of time to allow the crossbar jump upwards to close the electric contacts quickly.

A high power, single-use electrical switch includes a spring-biased plunger contact that mates with a corresponding socket contact, a spacer that provides a separation clearance between the contacts prior to activation of the switch, and a shear tab that supports the spacer and is removed from the switch to enable engagement between the contacts and activation of the switch. Using the shear tab for activation of the switch enables a compact and small form factor assembly that is suitable for use in smaller electronic assemblies.

A circuit interrupter includes a stationary contact and a moveable contact disposed on a moveable contact arm, the moveable contact being configured to be pivotable into and out of physical contact with the stationary contact by pivoting of the moveable contact arm about an axis. The moveable contact arm defines a pivot angle with respect to the stationary contact as the moveable contact arm pivots about the axis. A biasing member exerts a biasing force on the moveable contact arm which pivotally biases the moveable contact toward the stationary contact when the pivot angle is less than a zero-bias angle and which pivotally biases the moveable contact away from the stationary contact when the pivot angle is greater than a zero-bias angle.

A collapsible link device includes a side frame, a carrier, a main contact arm, a plurality of collapsible links, and a release mechanism. The carrier is pivotably coupled to the side frame. The main contact arm is pivotably coupled to the carrier and includes a first end including a first electrical contact. The plurality of collapsible links are pivotably coupled to the side frame and the carrier. The release mechanism is pivotably coupled to at least one of the collapsible links and the carrier. The plurality of collapsible links are movable between an uncollapsed position in which the first electrical contact contacts a second electrical contact and a collapsed position that results from the first electrical contact separating from the second electrical contact.

A collapsible link device includes a side frame, a carrier, a main contact arm, a plurality of collapsible links, and a release mechanism. The carrier is pivotably coupled to the side frame. The main contact arm is pivotably coupled to the carrier and includes a first end including a first electrical contact. The plurality of collapsible links are pivotably coupled to the side frame and the carrier. The release mechanism is pivotably coupled to at least one of the collapsible links and the carrier. The plurality of collapsible links are movable between an uncollapsed position in which the first electrical contact contacts a second electrical contact and a collapsed position that results from the first electrical contact separating from the second electrical contact.

A key structure includes a circuit board, a housing, a first metallic element, a second metallic element, a keycap and a conductive strip. The conductive strip is disposed within the housing. The first metallic element and the second metallic element are electrically connected with the circuit board. The housing is disposed on the circuit board. The keycap is fixed on the housing. While the keycap is depressed, a first end of the conductive strip is pressed by the triggering part and the conductive strip is swung relative to the housing. Moreover, a second end of the conductive strip collides with the second metallic element. Consequently, the key structure is triggered. When the second end of the conductive strip collides with the second metallic element, a click sound is generated.