Vallorbe is a border station with France. A total of 26 of these were delivered from 1922 to 1925 by SLM and SAAM and had a running axle at each end plus three powered axles in the middle. One is today preserved by SBB Historic in Olten.
Service weight: 81-85 tonnes
Output (one hour rating): 1320 kW (1760 hp)
Max speed: 90 km/h