Central piece with rotary knob for 3-stage switch S.1/B.3/B.7 aluminum, matt. Central piece with rotary knob and print for 3-stage switch.
| Property | Value |
| Design: | Rotary knob |
| Use: | Step switch |
| Mounting type: | Screw fastening |
| Print/marking: | various symbols |
| Suitable for bus system button coupling: | no |
| Suitable for protection class (IP): | IP20 |
| Color: | Aluminum |
| Halogen-free: | yes |
| Control window/light outlet: | no |
| Material: | Plastic |
| Material quality: | Thermoplastic |
| Surface: | painted |
| Surface finish: | matt |
| RAL number (similar): | 9006 |
| With label field: | no |
| With replaceable lens/symbol: | no |
| Scannable symbol/barrier-free: | no |
