(Reuters) - Bombardier Inc’s (BBDb.TO) rail unit said on Tuesday it signed a $724 million contract to sell 333 of its electric Aventra trains to be used by British rail operator West Midlands.

Under the deal, Bombardier will sell and maintain three-car trains for metro services and five-car trains for outer suburban and long distances.

The trains will be made at Bombardier’s Derby facility in England and are expected to be delivered between 2020 and 2022.