This article is about the Stadler tri-mode locomotives. For the planned electric locomotives intended as part of the InterCity 250 system, see British Rail Class 93 (InterCity 250).
The British Rail Class 93 is a tri-mode locomotive built by Stadler Rail in Valencia. It is an evolution of the Class 88 bi-mode locomotive which was built by Stadler for Direct Rail Services.[6] Three different power sources are used to power the locomotive – 4,000 kW (5,400 hp) 25kVAC overhead electric power, or a 900 kW (1,200 hp) diesel engine supplemented by a 400 kW (540 hp) battery – allowing the locomotive to be used on both electrified and non-electrified lines.[7]