Since the Jungfrau Railway was still dependent on the Rowan trains at the beginning of the 1950s, some of which were more than 50 years old, a total of ten modern BDhe 2/4 railcars were procured from 1955. Each railcar has a cab on the valley side and is dependent on a control car that has a cab on the mountain side. The associated control cars either have a passenger compartment or serve as a cistern to supply the mountain station with water. Since the introduction of the Bhe 4/8 from 2016, they are increasingly being phased out, two years later only half were left. 