The SJ Class Ra (or Rapid) is an electric locomotive operated by Swedish State Railways (Swedish: Statens Järnvägar, SJ). Ten units were built by ASEA, two in 1955 and eight in 1961. Ra was used on express trains until the 1990s.

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Quick Facts Ra, Type and origin ...

Ra
Rapid 846 at the Swedish Railway Museum
Type and origin Power type Electric Builder ASEA Build date 1955, 1961 Total produced 10
Specifications Configuration: ​  • UIC Bo′Bo′ Gauge 1,435 mm (4 ft 8+1⁄2 in) Length 15,100 mm (49 ft 6+1⁄2 in) Loco weight 65 t (64 long tons; 72 short tons) Electric system/s 15 kV  16+2⁄3 Hz AC Catenary Current pickup(s) Pantograph
Performance figures Maximum speed 150 km/h (93 mph) Power output 2,640 kW (3,540 hp) Tractive effort 200 kN (45,000 lbf)
Career Operators Statens Järnvägar Numbers 846-847 987-994 Retired 1996

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During the 1940s SJ had a need for quicker locomotives for their express trains. In 1953 two bogie-locomotives were ordered from ASEA. Inspiration for the appearance came from North America, with round shapes and a bulldog nose. The two first units were successful and SJ ordered additional eight units from ASEA, delivered in 1961. Though never being used for more than 130 km/h, it was capable for 150 km/h, and served mainly on Stockholm - Göteborg and Stockholm - Oslo. They were mainly taken out of service in the late 1980s, though two remained in service until 1996. Most have been preserved, including at the Swedish Railway Museum and at Nässjö Railway Museum. In 2012, Ra 988 was sold by the Swedish Railway Museum in 2012 and was sold to Svensk Tågkraft and is still in service.

Wikimedia Commons has media related to SJ Ra.

• Järnväg.net on Ra (in Swedish)