Free programmable multi-function rotary control element. For installation in the 1gang, 2gang and 3gang support frame (6346/10-101, 6346/11-101 and 6346/12-101) Support of KNX functions through innovative colour concept (yellow=lighting, blue=blind, orange=RTC, magenta=scene and white=neutral/no function assigned) or standard illumination red/green. For the setting and control of the RTR functions and texts of the display RTR, IR, and proximity sensor end strip (6351/0x-821). Stainless steel rotary knob