The SR-KN9551T4 is an ultra slim 4-Key KNX touch panel with tempered glass material that enables high touch sensitivity and smooth touch control. It is an ultra powerful KNX controller that enables to control all sorts of smart devices such as lighting, roller blind and shutter, security system, audio and video system etc. The KNX touch sensor is designed with bi-colored LED status indicator for each button. The function of each button is freely configurable with ETS, and the label can be customized and printed with inserted PVC paper according to the functions programmed. The touch panel is powered by KNX bus and consumes less than 12mA power. The KNX controller can switch and dim LED lighting gradually and smoothly without any flash while scene storage and recall functions can be programmed. Roller blind and shutter can also be controlled by this controller. With a mounting bracket, the controller is easy to be installed into standard size Europe wall box.
| 2-Key | 4-Key | 6-Key | 8-Key | |
| Number of Keys | 2 | 4 | 6 | 8 |
| Number of bicolored LED | 2 | 4 | 6 | 8 |
| Orientation LED | 1 | 1 | 1 | 1 |
| KNX bus connection terminal | 0.8mmΦ,single core | 0.8mmΦ,single core | 0.8mmΦ,single core | 0.8mmΦ,single core |
| Power Supply | KNX Bus | KNX Bus | KNX Bus | KNX Bus |
| Power Consumption KNX bus typ. | <0.3W | <0.3W | <0.3W | <0.3W |
| Operation temperature range | 0 to + 45℃ | 0 to + 45℃ | 0 to + 45℃ | 0 to + 45℃ |
| Waterproof Grade | IP 20 | IP 20 | IP 20 | IP 20 |
| Dimensions(W x H x D) | 86x86x21.4 mm | 86x86x21.4mm | 86x86x21.4mm | 86×86×21.4mm |