British Rail Class 803

British Rail Class 803
Interior of a Class 803 unit
In service25 October 2021 – present (2021-10-25 – present)
ManufacturerHitachi Rail
Built at
Family nameA-train
Constructed2020–2021
Number built5
Formation5 cars per unit: DPTS-MS-MS-MS-DPTS
Fleet numbers803001–803005
Capacity402 seats
OwnerBeacon Rail
OperatorLumo
DepotCraigentinny (Edinburgh)
Lines served
Specifications
Car body constructionAluminium
Doors
  • Single-leaf pocket sliding
  • (2 per side per car)
Maximum speed125 mph (200 km/h)
Weight228.5 tonnes (224.9 long tons; 251.9 short tons)
Electric system25 kV 50 Hz AC overhead
Current collectionPantograph
Braking systemsElectro-pneumatic (disc) and regenerative
Safety systems
Multiple workingWithin class
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The British Rail Class 803 AT300 is a type of electric multiple unit built by Japanese rolling stock manufacturer Hitachi Rail for open-access operator Lumo. Based on the Hitachi A-train design, a total of five units, each comprising five cars, have been produced. The class is used to operate passenger services on the East Coast Main Line between London King's Cross and Edinburgh Waverley.