Juniper (train)

Alstom Coradia Juniper
Class 460 at London Victoria.
In service	2000 - Present (BR Class 460 to 2012)
Manufacturer	Alstom
Family name	Coradia
Constructed	1998-2002
Number built	78 trainset
Operator(s)	South West Trains Abellio ScotRail
Specifications
Electric system(s)	25 kV AC Overhead lines (334) 750 V DC third rail (458/460)
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge

The Coradia Juniper series is a family of electric multiple unit trains built by Alstom Transport Birmingham, subcontractor: Ganz Hunslet, Hungary, for use on the railway network in Great Britain. The family is related to the Coradia 1000 series of diesel multiple unit.

There are currently two types in service with various TOCs, with a total of 76 units in service (36 class 458s and 40 class 334s). All Class 460s are now converted to Class 458/5s for South West Trains.

The Class 334 is an EMU in service with Abellio ScotRail on the suburban network around Glasgow, including services to Edinburgh Waverley via Airdrie and Bathgate on the North Clyde Line. Class 334 trains are powered using overhead wires at 25 kV AC. A total of 40 three car units are in use (numbered 001-040), of which 38 were delivered from Alstom trains in 1999, although due to teething problems, two extra were ordered and they did not enter service until 2001.

The Class 458 (also known as 4Jop) is operated by South West Trains on services from London Waterloo to Reading, and Ascot to Guildford. As with all electrically powered trains on the former Southern Region, the Class 458 units are powered using third rail at 750 V DC current. A total of thirty 4-car units were built, with deliveries beginning in 1998, with the full complement in service by 2004. However, they suffered from leaky roofs and failing electronics and were therefore stored from 2004 to late 2005, being replaced by more Class 450 units on the routes they operated. For a brief period, they were subleased to Gatwick Express, but were never used on Gatwick Express Services.