RUBI is a KNX S-mode device for loads on/off switching, light fittings dimming, control of motorised actuators and other programmable switching and control functions. Equipped with a bus communication module, it’s designed for wall installation on flush-mounting box. Each channel can be configured independently to perform one or two bus functions and is provided with programmable LED (red/white). The device is powered by the KNX bus line with 30 Vdc SELV voltage and does not require auxiliary power supply.