The British Rail Class 482 electric multiple units were built by ABB in 1992, for use on the Waterloo & City line.

Trains were operated using two units semi-permanently coupled, with the driving motors outermost.

They were delivered to Ruislip depot during March 1993, and were painted in Network SouthEast livery; however, as the Waterloo & City line was completely separate from the rest of the National Rail network, and was entirely underground, they did not receive yellow front ends.

Following commissioning (which included test runs as 8-car trains over most of the Central line), they were delivered by road to the Waterloo & City line during May and June 1993, and following further test runs, entered service on 19 July 1993.

[2][3] On 1 April 1994, operational control of the Waterloo & City line transferred to London Underground.