Small in format, but great in its potentials: The buttons and indicators from Style 28 along with many matching components, make the scope of design almost unlimited. Whether it is an arranged car fixture, or a space-saving landing fixture with a minimalist design the choice of elements and materials determine the look. While the Armour Button type PT 28 is especially durable, the Electronic Button type ET 28 also serves as a basic element for large-format variants, which range in various shapes and material combinations.
| Fixing | |
| Welding studs | M3 × 10 |
| Faceplate thickness | 2 - 3 mm |
| Connectivity | |
| Cutting terminal 2 poles | AWG 26 - 28 |
| Cutting terminal 2 × 2 poles | AWG 26 - 28 |
| LED | |
| U | 30 V AC/DC |
| U (option) | 12 V AC/DC |
| I | 20 mA |
| Marking | |
| Height of characters | 8 mm |
| height of symbols | 12 mm |