British Rail Class 350
| British Rail Class 350 Desiro | |
|---|---|
London Midland Class 350/2 No. 350265 at Watford Junction
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The interior of Standard Class aboard a London Midland Class 350/2
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| In service | June 2005 – present |
| Manufacturer | Siemens |
| Family name | Desiro |
| Replaced | |
| Constructed |
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| Number built | 87 trainsets |
| Formation | 4 cars per trainset |
| Fleet numbers |
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| Capacity | 19 first class and 210 standard class per trainset |
| Operator(s) |
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| Specifications | |
| Car length | 20.4 m (66 ft 11 in) |
| Width | 2.796 m (9 ft 2 1⁄8 in) |
| Maximum speed |
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| Weight | 175.5 tonnes (172.7 long tons; 193.5 short tons) |
| Traction motors | 4 × Siemens asynchronous type 1TB2016-0GB02 |
| Power output | 1,500 kW (2,010 hp) 250 kW (335 hp) (per motor car) |
| Electric system(s) |
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| Current collection method |
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| UIC classification | Bo'Bo'+2'2'+2'2'+Bo'Bo' |
| Bogies | Siemens SGP SF5000 |
| Braking system(s) | Air, regenerative |
| Multiple working | Within class |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
The British Rail Class 350 Desiro is a class of electrical multiple unit built by Siemens AG in 2004–05, 2008–09 and 2013–14. Thirty of these units, designated Class 350/1, were built for use by Central Trains and Silverlink on regional express services and services on the southern section of the West Coast Main Line. A further 37 Class 350/2 were ordered by London Midland in late 2007. All 37 units were delivered and in service by July 2009. A further 20 units have since been built, split equally between London Midland and TransPennine Express. The London Midland units are designated under the Class 350/3 subfleet, and the TransPennine Express units designated 350/4.
The Siemens Desiro UK family also includes units of Classes 185, 360, 380, 444 and 450.
The Class 350/1 units were originally part of an order for thirty-two 5-car Class 450 units for South West Trains. However, they were never built as such. Of the 160 carriages ordered, 40 were diverted as an additional ten 4-car Class 450 units, and the remaining 120 were modified as thirty 4-car Class 350/1 units. The top speed of the fleet was originally 100 mph (160 km/h), but all 350/1s were modified to allow 110 mph (180 km/h) running from December 2012, in order to make better use of paths on the busy West Coast Main Line.
A second batch of Class 350/2 units, intended to replace the Class 321 units, was delivered in late 2008 and during 2009. The first of the Class 350/2 was launched on 8 October 2008 and carried invited guests around the Wildenrath Test Track. The last of the Class 350/2 fleet (350267) was officially delivered to London Midland on 30 July 2009. Class 350/2 differ from the Class 350/1 units in two key aspects: they have 3+2 seating in standard class (because they work short-hop commuter services, the Class 350/1 are 2+2 throughout, work longer distance services) and lack the dual-voltage capability of the 350/1.
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