They are the only class of operational electric trains in South Australia,[4] running services on the Gawler, Seaford and Flinders lines.

[3] In March 2011, Bombardier Transportation was awarded a contract to build 22 three-carriage trains for the Adelaide rail network, that was in the process of being electrified.

[5][6][7] The first of the Adelaide trains was delivered in July 2013, and entered service on 23 February 2014 on the Seaford and Tonsley (now Flinders) lines.

[13][14] When they were ordered, it was proposed that the Gawler line would be electrified, which would allow the trains to access Adelaide Metro's Dry Creek depot.

[15] In June 2019, a further 12 train sets were ordered for the Gawler line electrification, the first of which was delivered in mid-late 2021 and entered service on 4 March 2022.