PROTECTIVE SWITCHING DEVICE FOR MONITORING THE ELECTRICAL CURRENT FLOW TO AN ELECTRICAL USER AND METHOD FOR MONITORING THE ELECTRICAL CURRENT FLOW TO AN ELECTRICAL USER BY WAY OF A PROTECTIVE SWITCHING DEVICE

摘要

A protective switching device is disclosed for monitoring the electrical current flow to an electrical user, including a switching functionality, an excess current triggering functionality and a short circuit triggering functionality. In at least one embodiment, the protective switching device includes a first microcontroller with a first input signal filter, wherein the first microcontroller is configured for monitoring the excess current triggering functionality and wherein a second microcontroller is provided with a second input signal filter that is configured for monitoring the short circuit triggering functionality, wherein the two input signal filters are designed differently, and wherein the switching functionality is provided in one of the two microcontrollers. A method is further disclosed for monitoring the electrical current flow to an electrical user by way of a protective switching device.