British Rail Class 810
| British Rail Class 810 Aurora | |
|---|---|
 East Midlands Railway Class 810 on test at Kilby Bridge | |
 Standard class interior | |
| In service | 3 December 2025–present |
| Manufacturer | Hitachi Rail |
| Built at | |
| Family name | A-train |
| Replaced | Class 222 |
| Constructed | 2021–present |
| Formation |
|
| Fleet numbers | 810001–810033 |
| Capacity |
|
| Owner | Rock Rail |
| Operator | East Midlands Railway |
| Depot | Derby Etches Park |
| Line served | Midland Main Line |
| Specifications | |
| Car body construction | Aluminium |
| Train length | 120 metres (393 ft 8 in) |
| Car length | 24 m (78 ft 9 in) |
| Maximum speed | 125 mph (200 km/h) |
| Prime mover | 4 × MTU turbo-diesel |
| Power output | 735 kW (986 hp) per engine, 2,940 kW (3,940 hp) in total |
| Electric system | 25 kV 50 Hz AC overhead |
| Current collection | Pantograph |
| UIC classification |
|
| Safety systems | |
| Multiple working | Within class |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The British Rail Class 810 Aurora is a type of bi-mode multiple unit being constructed by Hitachi Rail for East Midlands Railway (EMR). Based on the Hitachi AT300 design, 33 five-car units replaced Class 222 units on EMR's intercity routes following their entry into service in December 2025.