Patent ID: 8253517
Filing Date: 2012-08-28
Classification: H01H

Abstract:
1. A full-protection circuit breaker, comprising: a line-protection circuit breaker and a residual-current-operated component which can be fitted thereto; a first switching mechanism, which is provided in the residual-current-operated component, comprising a first switching toggle for operation of a first latching mechanism, which is accommodated in the residual-current-operated component and has at least one first latching point; and a second switching mechanism, which is provided in the line-protection circuit breaker, comprising a second switching toggle for operation of a second latching mechanism, which is accommodated in the line-protection circuit breaker and has at least one second latching point, wherein the first and the second latching mechanisms are coupled by means of a first coupling element such that, when the first latching point is unlatched, the second latching point is also unlatched and in the process at least one contact point of the line-protection circuit breaker is opened, and that the second latching mechanism is configured to be reconnected by means of the second switching toggle only when the first switching toggle has been pivoted through a predeterminable lead angle from its disconnected position in the direction of its connected position, wherein the first and the second switching toggle are coupled by means of a second coupling element, wherein the second coupling element acts on the first switching toggle with respect to the second switching toggle, pivoting through the predeterminable lead angle in the direction of its connected position, wherein the first latching mechanism is configured to be coupled by means of a first coupling element to a tripping lever of the second latching mechanism such that, when the first latching mechanism of the residual-current-operated component changes to its unlatching state and the first switching toggle pivots to its disconnected position, a latching point on the second latching mechanism is held in its unlatching position via the first coupling element and the tripping lever, and wherein, in the event of a forced movement from a first position, which corresponds to the disconnected position of the second switching toggle, to a second position, which corresponds to the connected position of the second switching toggle, the second component first of all acts only on the first switching toggle of the residual-current-operated component, pivoting the first switching toggle, and thus pivots the first switching toggle through a predeterminable lead angle before the second component also acts on the second switching toggle of the line-protection circuit breaker, pivoting the second switching toggle.