The ACT20M-RTCI-CO-OLP-S is a compact timer relay module manufactured by Weidmuller. It has a 20mm width and is designed to provide time control functions in industrial automation applications. The module comes with one relay output and a built-in set of time ranges that can be used to control the on/off state of the output. This timer relay module is suitable for a wide range of applications, including pump control in buildings, process control, ventilation systems, industrial production, etc. The timer can be configured either from the front of the module or with a software configuration tool.