Class of British electric multiple unit trains built in 1998–2002
British Rail Class 458 Juniper
Class 458/5 unit at Richmond
Class 458/5 refurbished interior
In service
25 February 2000 – present
Manufacturer
Alstom
Built at
Washwood Heath, Birmingham
Family name
Coradia Juniper
Replaced
Class 411
Class 412
Class 421
Class 423
Class 442
Constructed
1998–2002
Refurbished
2008–2010 (interior refresh)
2013–2016 (5-car rebuild)
Number built
36 (Original fleet of 30, plus 6 converted from Cl. 460)
Formation
4 cars per 458/0 unit as-built: DMCO-TSO-MSO-DMCO
5 cars per rebuilt 458/5 unit: DMSO-TSO-TSO-MSO-DMSO
Fleet numbers
458/0: 458001–458030
458/5: 458501–458536
Capacity
5-car units: 270 seats[1]
Owners
Porterbrook
Operators
Current:
South Western Railway
Former:
South West Trains
Depots
Current:
Wimbledon (London)
Future:
Bournemouth[2]
Specifications
Car body construction
Steel
Car length
DMSO vehs.: 21.01 m (68 ft 11 in)
M/TSO vehs.: 19.94 m (65 ft 5 in)
Width
2.80 m (9 ft 2 in)
Height
3.77 m (12 ft 4 in)
Doors
Double-leaf sliding plug (2 per side per car)
Maximum speed
458/0 and 458/4: 100 mph (161 km/h)
458/5: 75 mph (121 km/h)[3]
Traction system
Alstom ONIX 800 IGBT
Traction motors
6 × 270 kW (400 hp) (2 per motor car)
Power output
1,620 kW (2,000 hp)
Electric system(s)
750 V DC third rail
Current collector(s)
Contact shoe
UIC classification
458/0: 2′Bo′+2′2′+Bo′2′+Bo′2′[4]
458/5: 2′Bo′+2′2′+2′2′+Bo′2′+Bo′2′
Bogies
Alstom ACR[5]
Braking system(s)
Electro-pneumatic (disc), and regenerative
Safety system(s)
AWS
TPWS
Coupling system
458/0: Tightlock
458/4 and 458/5: Voith
Multiple working
Within class
Track gauge
1,435 mm (4 ft 8+1⁄2 in) standard gauge
The British Rail Class 458 Juniper (5-JUP) is a class of electric multiple unit passenger trains of the Alstom Coradia Juniper family, built at Washwood Heath between 1998 and 2002 for South West Trains.[6] The order for the original fleet of 30 four-car trains was placed in 1997, and delivery of the first unit followed in October 1998.[7] The fleet entered passenger service between 2000 and 2003 and is maintained at Wimbledon depot.[8]
Between 2013 and 2016, the class was merged with the mechanically similar Class 460 fleet and extensively rebuilt to form a fleet of 36 five-car units—designated Class 458/5—to provide an increase in capacity on services into London Waterloo.[9] The trains are now used by South Western Railway.[10]
In March 2021 South Western Railway announced that 28 Class 458 units would be refurbished and were planned to be used on long-distance services on the Portsmouth Direct line, as a result of the company deciding to abandon their original plan to use upgraded Class 442 units for this purpose.[11] As part of the refurbishment the fifth car will be removed and the passenger saloons will be modified to better meet passenger expectations for longer journeys.[12]
^"Class 458 "Coradia Juniper"". South Western Railway. Archived from the original on 20 January 2021. Retrieved 5 January 2022.
^"SWR delays '458' upgrade as wait for Arterios goes on". Rail Magazine. No. 965. 7 September 2022. p. 21.
^Lindop, Peter (4 April 2000). "Class 458". www.lococarriage.org.uk/. The Locomotive & Carriage Institution. Retrieved 12 June 2020. 458 – A Fast-Track Development?
^Cite error: The named reference Ju was invoked but never defined (see the help page).
^Marsden, C. J. (2007). Traction Recognition. Hersham: Ian Allan Publishing. pp. 234–235. ISBN 978-0-7110-3277-4. OCLC 230804946. OL 16902750M.
^"Railtex 2000 review". Railway Gazette International. 1 January 2001. Archived from the original on 7 June 2018. Retrieved 7 June 2018.
^Lindop, Peter (4 April 2000). "458 – A Fast Track Development?". Locomotive & Carriage Institution. Archived from the original on 5 March 2017. Retrieved 7 June 2018.
^"Golden Spanners Awards 2015". Modern Railways. 3 December 2015. Archived from the original on 7 June 2018. Retrieved 7 June 2018.
^Llewelyn, Hugh (2016). EMUs A History. Amberley Publishing. ISBN 9781445649832.
^"First train arrives late at South Western Railway launch". Rail Magazine. Peterborough. 5 September 2017. Archived from the original on 9 September 2017. Retrieved 7 June 2018.
^"SWR abandons '442s' but retains '458s'". Modern Railways. Key Publishing Ltd. 14 April 2021. Retrieved 30 January 2022.
^"Porterbrook selects Alstom to upgrade Class 458 train fleet". Railway Technology. GlobalData. 7 April 2021. Retrieved 22 April 2021.
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