RK0104C DM460400 4-channel dimmer, triac output (0-10V) with KNX control Controller for KNX BUS control by 0‑10V signal with triac output that allows lighting control, as well as electrovalves and other elements controlled by 0‑10V signal. Supply: 230V AC DIN rail mounted (4 modules) documentation Datasheet Programming manual software ETS application program