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Class 350 Desiro

The Class 350, part of the Siemens Desiro family of electric multiple unit, was built in three batches since 2004 and is operated by London Northwestern (LNWR). The Class 350 is the mainstay of LNWR intercity regional services. The Class 350 has also served, in the past, with London Midland, Central Trains, Silverlink, Southern and First TransPennine Express.
LNWR 350 265 arrives at Berkhamsted


Information
Number built: 348 (87 4-car train sets) 
Built: 2004-14
Builder: Siemens
Motor: 4 Siemens 1TB2016-0GB02 traction motors (25kV AC OHLE)
(350/1) 750v DC third rail
Power: 2, 010 hp (1, 500 kW)
Formation: Driving Motor Standard Open (DMSO)+Trailer Composite
Open (TCO)+Pantograph Trailer Standard Open (PTSO)+DMSO

The Class 350 is capable of up to 110mp/h (except the 350/2) and collects its power from the 25kV AC overhead wires though some (350/1) can use the 750v DC third rail too. However, these days only operate as AC EMUs. They are part of the Desiro family which also includes the very similar Classes 185, 360444 and 450. Indeed the original batch of 350s was originally ordered as Class 450s [1].



London Northwestern Railway use the 350/1, 350/2 (which has high density seating), 350/4 and the more recently built 350/3 on services down the West Coast Main Line to London Euston as well as some local services in the West Midlands. Some are to be replaced by Class 730s.
LNWR 350 115 at Stafford

LNWR 350 406 at Tile Hill

LNWR 350 116 at Berkswell

Aboard a refurbished LNWR 350, with passenger information screens

LNWR 350 243 at Rugeley Trent Valley

[1] Colin J. Marsden, DMU and EMU Recognition Guide (Ian Allan, 2013) p. 270