 In 1998 Connex South Eastern leased twelve Class 508s from Angel Trains that were surplus to Merseyrail Electrics to replace some Class 411s.Connex South Eastern ordered 10 three-carriage and 102 four-carriage Class 375s, and 36 five-carriage Class 376s in a couple of batches with the first entering service in April 2001.Connex South Eastern's fleet was maintained at Ashford, Ramsgate, Slade Green and Gillingham depots.