System gesis FLEX - The 4-fold semiconductor output 230 VAC/0.5 A, with flat surface mounted housing which can be fitted on DIN rails for decentralized installation, is managed by the base module. It receives its main and bus supply from the upstream module. The extensive parameter set enables different automation functions. The manual operation level allows functional testing without prior system integration. The electrical connections are pluggable in accordance with IEC 61535, separate automation and installation.