- Backlit icons with a diameter of 28 millimeters
- Construction type similar to the PK push button series
- Robust housing technology, high degree of protection and wide operating temperature range
- Proven chemical resistance to many surface cleaners
- Can be mounted from the front or back side and comes equipped with a cable outlet for optional plugs
- Text and pictograph with disappearing effect
- Complies with the current standards for rail vehicles (EN 50155, EN 45545-2 and EN 61373)