An electrical device having sub-module and sub-module itself

The utility model relates to electrical equipment with a sub-module and the sub-module. The sub-module is provided with a first external electrical connector (TM1) and a second external electrical connector (TM2). The device has at least one bypass switching device (BPS). And a connector electrically connected between the first and second connectors of the sub-module, and causing an electrical short-circuit between the two external connections of the sub-module in at least one current flow direction in the switched-on state, wherein the bypass switching device has: thyristors (T1, T2), which have an anode connection (A), a cathode connection (K) and a trigger connection (Z), by means of which the bypass switching device is connected to one of the two external connections of the sub-moduleand by means of which the bypass switching device is connected to the other of the two external connections of the sub-module; the utility model relates to a thyristor switching device comprising a thyristor, a trigger device