The £492m order, which was placed in January 2016, comprises 31 three-car and 12 four-car EMUs (class 331) together with 25 two-car and 30 three-car DMUs (class 195). Financing for the order is being provided by Eversholt Rail.

Northern says the first set will be completed in the autumn and dynamic testing is due to take place at the Velim test track in the Czech Republic early next year. Delivery of the first set to Britain is scheduled for spring 2018, with the fleet entering passenger service between December 2018 and December 2019.