When SJ wanted to modernise its electric locomotive fleet, the Rc locomotive was born. It is a bogie locomotive, with thyristor drive and substantial horsepower. These locomotives could be used for both freight and passenger traffic, and offered a slightly higher speed.
SJ was facing increasing competition from passenger car and air travel, and wanted to attempt to reach higher speeds. They therefore partnered with ASEA to develop electric locomotive Ra. Two of these models were built by NOHAB and ASEA in 1955.
Electric locomotive Da 888 was produced by several workshops working together in 1955. This locomotive model was ordered by SJ in the 1950s and was part of a series of 93 locomotives, numbered between 790 and 941.
Electric locomotive Da 820 was produced by several workshops working together in 1953. This locomotive model was ordered by SJ in the 1950s and was part of a series of 93 locomotives, numbered between 790 and 941.
Electric locomotive D 432 was manufactured in 1936. It was part of a series of 333 locomotives produced by SJ and the private railways Bergslagarnes Järnväg and Dalslands Järnväg between 1925 and 1943.