UP 117C12 KNX Modular Bus Coupling Unit BTM NEMA Wall Box DC Converter 5V 20V, 5WG1117-2CB12
The UP 117C12 KNX bus coupling unit connects a bus device to the KNX two-wire bus line through a 10-pole bus transceiver interface (BTI) socket. It is designed for North American NEMA wall box installations, with a mounting bracket and screw connection for secure attachment inside boxes with minimum inside dimensions of 50 x 89 x 40 mm and a mounting depth of 19 mm. The integrated DC converter draws power from the bus line and supplies the clipped-on application module with DC 5 V at 30 mA and DC 20 V at 25 mA, eliminating the need for a local auxiliary supply. The BTI socket allows fast clipping of compatible bus terminal devices, while bus communication is established via a standard bus terminal block. The unit is rated IP20 for dry indoor environments.
Technical Specifications
| Feature |
Detail |
| Bus Communication |
KNX TP |
| Bus Device Interface |
10-pole BTI socket for clipping on bus devices |
| DC Converter Output |
DC 5 V / 30 mA and DC 20 V / 25 mA |
| Mounting |
NEMA wall box mounting with screw connection |
| Minimum Box Dimensions |
50 x 89 x 40 mm |
| Mounting Depth |
19 mm |
| Bus Connection |
Via bus terminal |
| IP Protection |
IP20 |
| Dimensions |
111 x 65 x 19 mm |
| Warranty |
24 months |
Typical Applications
- North American KNX pushbutton and sensor back boxes
- Display and operation unit accessories
- Room automation endpoints
- Hotel guest room controls
- Residential lighting panels
- Modular wall-box automation devices
- Smart home retrofits
- Commercial tenant improvement projects
- Low-voltage building automation in shallow NEMA enclosures