In a switching device, such as a residual current circuit breaker or a combination switch, for example, for interrupting and switching at least one line (L1, L2, L3, N), having a tripping device (2) which is independent of the system voltage, having a tripping element (3) associated with said tripping device, such as a tripping relay, for example, and having a tripping device (9) which is dependent on the system voltage, the invention proposes, for simplifying the design, for reducing the required assemblies, for easy adaptability and for an increased functional reliability, that the trippingdevice (9) which is dependent on the system voltage comprises means for tripping the tripping element (3), which is associated with the tripping device (2) which is independent of the system voltage.