Abstract: A switching unit having a load connection and an earth connection, between which a switching element is connected. A semiconductor switch comprising two connections and a control input is also provided. A connection is connected to the earth connection and the other is connected to a signal contact, and the control input is connected to the load connection. An electrical circuit is also provided.

Abstract: A switching device having two terminals that are electrically connected via a first current path that has a mechanical switch. The switching device also includes a second current path that is electrically wired in parallel with the first current path and that has a bridge rectifier with an AC voltage side and a DC voltage side. The AC voltage side is connected to the terminals, and the DC voltage side is electrically connected via a switch unit. The invention also relates to a circuit breaker.

Abstract: A control circuit of a hybrid switch comprising a main current path, which has a disconnecting element, and an auxiliary current path, which is connected in parallel with the main current path and has a semiconductor switch. The control circuit has a first terminal for the disconnecting element and a second terminal for the semiconductor switch and is configured to carry out a method in which a request for interrupting a current flow via the hybrid switch is recognized. A temporal sequence of an electrical voltage applied to each of the two terminals is chosen depending on the disconnecting element connected to the first terminal and the semiconductor switch connected to the second terminal. Furthermore, a hybrid switch is also provided.