Secure switching device for on-off switching of electrical load has at least 2 switching elements each providing switch output for controlling load

摘要

The secure switching device has at least 2 electronic switching elements (56,58) receiving the same switching signal, for providing an output signal with 2 alternate potentials, each of the switching elements coupled to a respective output terminal (76,78), for on-off switching of an electrical load (84) via a relay (80). An Independent claim for a secure switching device system is also included.