Circuit breaker

Abstract

A circuit breaker which has a busbar to which a fixed contact is attached, and a contact bridge which is mounted movably relative thereto and to which a moving contact is attached. The circuit breaker also comprises an electric drive by means of which the contact bridge is driven, a yoke placed around the busbar, and a movably mounted slider to which an armature is attached. The circuit breaker is configured such that, when a first limit value is exceeded by an electric current conducted via the busbar, the slider is moved on account of a magnetic interaction between the armature and the yoke and therefore, by means of the slider, a switch element connected electrically in series with the electric drive is actuated.

Dependencies are inferred from the claim text.