ČD Class 680

ČD Class 680 are high-speed electric multiple units operating in the Czech Republic, using tilting Pendolino technology intended for the SuperCity train service. Built by Alstom, originally Fiat Ferroviaria, they were largely based on the nine-car ETR 470. While testing from Břeclav to Brno on 18 November 2004 the Pendolino reached 237 km/h and set a new Czech railway speed record. The units are able to operate on 25 kV 50 Hz AC, 15 kV 16.7 Hz AC and 3,000 V DC. The initial Czech order for tilting trains was placed with Fiat Ferroviaria in 2000, and after Alstom took over Fiat Ferroviaria the order was changed to Pendolino trains; the first set was delivered in 2004 and the trains entered regular service in December 2005 between Prague and Ostrava. As of late January 2006 all five in-service trains suffered from software and operating problems, ranging from failing air conditioning and heating to malfunctions of the tilt controls, and all problems were later fixed. In December 2006 they were given permission to operate in Slovakia and Austria, and as of 2020 they operated nine trips a day in each direction on the SuperCity service from Prague through Pardubice and Olomouc to Ostrava.