The Class 92 is a dual-voltage electric locomotive capable of running on 25kV AC from overhead lines via pantograph, or 750V DC from a third rail. It was designed specifically for operation through the Channel Tunnel between Britain and France for sleeper and freight services and, as a common user, are classified CC 92000 on French Railways. Since introduction in 1994, the fleet has been allocated to freight. However, six of the class now operate the Caledonian Sleeper service between London and Scotland.
A total of 46 of these interesting and complex locomotives, which were capable of delivering 6,700hp in AC mode and 5,630hp on third-rail DC (making them amongst the most powerful on the British network) were built between 1993 and 1996
