High Quality Content by WIKIPEDIA articles! The British Rail Class 365 "Networker Express" are dual-voltage 25 kV AC and 750 V DC) electric multiple units built by ABB at York from 1994 to 1995. These were the last units to be built at the York factory before it closed. All Class 365 units in service have received front-end cab modifications to equip them with cab air conditioning, which was installed by WAGN and the design of which has given them the nickname "Happy Train".