A dual energy storage operating mechanism of an isolating switch is provided. A first energy storage mechanism and a second energy storage mechanism are provided between an input wheel and a housing and between the input wheel and an output wheel or a first output shaft, respectively. The output wheel is provided with a limiting mechanism. The limiting mechanism forms a locking effect on the output wheel when the first energy storage mechanism stores energy, thereby enabling the second energy storage mechanism to store energy at the same time. When the first energy storage mechanism starts to release energy, the locking effect of the limiting mechanism is released, so that the output wheel and the first output shaft can rotate, and the first energy storage mechanism and the second energy storage mechanism release energy at the same time, forming a dual energy storage boosting effect.

A dual energy storage operating mechanism of an isolating switch is provided. A first energy storage mechanism and a second energy storage mechanism are provided between an input wheel and a housing and between the input wheel and an output wheel or a first output shaft, respectively. The output wheel is provided with a limiting mechanism. The limiting mechanism forms a locking effect on the output wheel when the first energy storage mechanism stores energy, thereby enabling the second energy storage mechanism to store energy at the same time. When the first energy storage mechanism starts to release energy, the locking effect of the limiting mechanism is released, so that the output wheel and the first output shaft can rotate, and the first energy storage mechanism and the second energy storage mechanism release energy at the same time, forming a dual energy storage boosting effect.

An rotary switch operating apparatus has a drive shaft and a first and a second drive element, the first drive element having a rotationally fixed coupling to the drive shaft, and the second drive element being rotatably mounted on the first drive element. The apparatus includes a spring coupling the first and the second drive element together with a spring action, a lock limiting rotational movements of the second drive element in a first rotation direction and a second rotation direction, opposite the first, and a releaser for canceling rotational movement limitation of the second drive element in pre-specified rotation positions of the first drive element. Latches bearing against the drive elements' guide sections are provided, the first drive element guide section having release sections as releasers and the second drive element guide section having two latch stops as locks. The latches can both lock and release the spring-operated movement of the second drive element.

A dual energy storage operating mechanism of an isolating switch is provided. A first energy storage mechanism and a second energy storage mechanism are provided between an input wheel and a housing and between the input wheel and an output wheel or a first output shaft, respectively. The output wheel is provided with a limiting mechanism. The limiting mechanism forms a locking effect on the output wheel when the first energy storage mechanism stores energy, thereby enabling the second energy storage mechanism to store energy at the same time. When the first energy storage mechanism starts to release energy, the locking effect of the limiting mechanism is released, so that the output wheel and the first output shaft can rotate, and the first energy storage mechanism and the second energy storage mechanism release energy at the same time, forming a dual energy storage boosting effect.

A dual energy storage operating mechanism of an isolating switch is provided. A first energy storage mechanism and a second energy storage mechanism are provided between an input wheel and a housing and between the input wheel and an output wheel or a first output shaft, respectively. The output wheel is provided with a limiting mechanism. The limiting mechanism forms a locking effect on the output wheel when the first energy storage mechanism stores energy, thereby enabling the second energy storage mechanism to store energy at the same time. When the first energy storage mechanism starts to release energy, the locking effect of the limiting mechanism is released, so that the output wheel and the first output shaft can rotate, and the first energy storage mechanism and the second energy storage mechanism release energy at the same time, forming a dual energy storage boosting effect.

A breaker mechanism for an electrical circuit breaker is disclosed, the breaker mechanism including a spring, a latching mechanism and an actuating element, with which a breaker shaft of the electrical circuit breaker is actuated for breaking (OFF position) or making (ON position) the electric current. In an embodiment, the actuating element is actuated in the direction of the ON position when making the electric current, and the spring is thereby tensioned. Further, the latching mechanism releases the energy of the spring for actuating the breaker shaft of the electrical circuit breaker when the ON position is reached.

A breaker mechanism for an electrical circuit breaker is disclosed, the breaker mechanism including a spring, a latching mechanism and an actuating element, with which a breaker shaft of the electrical circuit breaker is actuated for breaking (OFF position) or making (ON position) the electric current. In an embodiment, the actuating element is actuated in the direction of the ON position when making the electric current, and the spring is thereby tensioned. Further, the latching mechanism releases the energy of the spring for actuating the breaker shaft of the electrical circuit breaker when the ON position is reached.

A rotary switch operating apparatus has a drive shaft and a first and a second drive element, the first drive element having a rotationally fixed coupling to the drive shaft, and the second drive element being rotatably mounted on the first drive element. The apparatus includes a spring coupling the first and the second drive element together with a spring action, a lock limiting rotational movements of the second drive element in a first rotation direction and a second rotation direction, opposite the first, and a releaser for canceling rotational movement limitation of the second drive element in pre-specified rotation positions of the first drive element. Latches bearing against the drive elements' guide sections are provided, the first drive element guide section having release sections as releasers and the second drive element guide section having two latch stops as locks.

A breaker mechanism for an electrical circuit breaker is disclosed, the breaker mechanism including a spring, a latching mechanism and an actuating element, with which a breaker shaft of the electrical circuit breaker is actuated for breaking (OFF position) or making (ON position) the electric current. In an embodiment, the actuating element is actuated in the direction of the ON position when making the electric current, and the spring is thereby tensioned. Further, the latching mechanism releases the energy of the spring for actuating the breaker shaft of the electrical circuit breaker when the ON position is reached.

A switching device has: a contact secured to a housing; a movable contact arranged on a contact arm arranged to be movable inside the switching device and including an extension facing away from the movable contact, the movable contact being designed to enter in contact with the contact that is secured to the housing; a breaker mechanism connected to the movable contact arm; a manually operated lever which is connected to the breaker mechanism; and a snap-action closing mechanism including a rotatably mounted snap action rocker which is controlled by a first cam of the manually operated lever and which includes a contact arm-catching unit that is to come in contact with the extension of the contact arm. The contact arm-catching unit preferably has a surface hardness which is greater than or equal to the surface hardness of the extension of the contact arm.