The Siemens Desiro electric multiple unit train is designed to accommodate a range of customer options, including choice of power sources. The 3rd rail DC power collection system units built for operation on the former Southern region routes have been allocated TOPS class 450, the standardisation in the design being noticeable on these units which retain the lowered roof deck section for a pantograph.
Era 9. DCC and Sound Ready 21 pin decoder required for DCC operation, sound decoder and speaker required for sound operation. Directional lighting. Internal lighting.