The new K series set new design standards for railway cockpits: four different shaped actuator versions are bicolored to bring out the high quality and to clarify the operating direction. Clear design accentuates visible innovation within functional dominated surroundings. Also visual compatibility to current pushbutton series was part of the design work. Assembly occurres by uncomplicated central mounting. Circuitry is capsuled by solid and completely sealed plastic housing. Typical applications besides railway driver's desks are also control panels of cranes and cable cars.