| 摘要 |
<p>A circuit breaker has a nominal current contact arrangement with a nominal current contact and a nominal current mating contact that are movable relative to each other, and with an arc contact arrangement that has an arc contact and an arc mating contact that are movable relative to each other. The circuit breaker also has kinematics driven by an actuating member which is effectively connected with the nominal current contact and the arc contact and configured, as a function of a breaking movement of the actuating member, to effect first a disconnection of the nominal current contact from the nominal current mating contact, before a disconnection of the arc contact from the arc mating contact occurs. The effective kinematics is also designed in such a way that, as a function of the switching-on movement of the actuating member, first an electrical connection of the arc contact is created with the arc mating contact, before an electrical connection of the nominal current contact is made with the nominal current mating contact.</p> |
