VR Class Sr2

The Sr2 is a class of electric locomotives of the VR Group in Finland. They were built by SLM and ABB and later by Adtranz and finally Bombardier Transportation, and assembled by Transtech Oy, and they are closely based on the Re 460, the Lok 2000 of Swiss Federal Railways. Their nicknames, Alppiruusu or Edelweiss and Kakikello or Cuckoo clock, refer to that Swiss origin, while Marsu and Mohko describe the looks. VR ordered the first 20 in 1992, later ordered more, and the fleet came to 46 locomotives, used on passenger and freight trains and as the primary locomotives of the fast InterCity trains. When introduced, the Sr2 was the fastest and most powerful locomotive of VR, designed for 230 kilometres per hour though later limited to 210. GTO-thyristor inverters drive three-phase asynchronous AC motors for a power output of 6,100 kilowatts, the motors fit entirely within the bogies, and the external design is by Pininfarina.