This Schneider Electric SpaceLogic C-Bus Pro Series 1 key input unit control and automate lighting and many other electrical products. This switch function as the load switch, dimmer, scene control, roller shutter, bell push switch, curtain, and time switch. The dimmer can control up to 255 possible levels. This C-Bus communication network type is of a maximum of 100 connections. The device is of 1 gang. The rated current is 18mA. The Ue-rated operating voltage is from 15VDC to 36VDC. It is with a red or blue status indicating LED light. This device enables wall mounting. The dimension of the product is (W) 75mm x (H) 118mm x (D) 25mm. The color of this device is White. It is made of plastic material. The operating temperature is from 0°C up to +45°C. It reaches an IP20 degree of protection. The Relative Humidity is from 10% to 95%. SpaceLogic C-Bus is a powerful, fully integrated system that can control and automate lighting and many other electrical systems and products. C-Bus system is robust, flexible, scalable, and has proven solutions for buildings of the future. This device is compliant with RCM certification.