British Rail Class 312

Ranked #119 on the list Best Locomotive class of All Time

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About British Rail Class 312

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The British Rail Class 312 is a type of alternating current (AC) electric multiple unit (EMU) built in 1975-1978 for use on outer-suburban passenger services. It was the last class of multiple unit to be constructed with the British Rail Mark 2 bodyshell, and also the last with slam doors. This latter feature contributed to their relatively early withdrawal (25–28 years old, compared with a life expectancy of 30 years). The table below illustrates the original formation, numbering and areas of use: These units were based on the Class 310, used on the suburban services out of London Euston. The only significant difference between the various sub-classes was that the 312/1 units were also equipped to work on the 6.25 kV AC overhead electrification system used on parts of the Great Eastern Main Line and London, Tilbury and Southend Railway networks. As built, the 312/0 units were used on the newly-electrified Great Northern outer suburban services from London King's Cross to Royston. The 312/1s were built for Great Eastern line services from London Liverpool Street. The four 312/2 units were mainly used to enhance local services between Birmingham New Street and Birmingham

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