The units will be equipped with traction battery packages, allowing them to operate over non-electrified sections of track in addition to those with 25 kV 50 Hz AC overhead supplies.[2]
History
The Wales & Borders rail franchise was awarded to KeolisAmey Wales in May 2018 and commenced on 14 October 2018.[8] The franchise award included a requirement that the operator perform a full replacement of its fleets;[9] as part of which process an order was placed with Stadler for delivery by 2023 of 36 tram-train units that would be capable of running on existing lines and also under battery power on the streets of Cardiff.[10]
All units are three cars and are able to be coupled together to form a six car unit. Each three car unit has a maximum passenger capacity of 256, units will have level boarding, space for bikes, wheelchairs and pushchairs. All seats will have access to plug and USB-A style sockets.[11][12]
The first unit to arrive in the UK was 398001, delivered from the Valencia works to the Rail Innovation & Development Centre in Melton, Leicestershire[13] for testing on the Old Dalby Test Track.
The first unit was delivered to Taff's Well depot on 21 March 2023.[14] TfW have stated that entry into service is planned for 2025.[1]