Mid-size luxury
The Style 45 comes midway between the large-scale Style 50 and the somehow smaller elements of the Style 42 and links the two together, as well as enhancing the portfolio of buttons and indicators with options in a new size. A product set to satisfy those who found B 50 too bulky and standard size too insubstantial, for which quality, versatility and individuality remained the top priorities.

| Fixing | |
| Spacer + Nut | X |
| Faceplate thickness | 1 - 11 mm |
| Faceplate thickness (with spacer) | ≤ 6 mm |
| Faceplate thickness (without spacer) | > 6 mm |
| Connectivity | |
| Screw terminal 2 poles | 0.051 - 2.08 mm² (30 - 14 AWG) |
| LED | |
| U (AC) | 30 - 120 V AC |
| U (DC) | 12 - 120 V DC |
| U (option) | 6 V DC |
| I | 55 mA |
| Other | |
| Temperature range | 0 - +55 °C (+32 - +131 °F) |