British Rail Class 332

British Rail Class 332
Class 332 at London Paddington in January 2007
Interior of a refurbished standard class carriage
In service	19 January 1998 – 28 December 2020
Manufacturer	CAF
Built at	Zaragoza, Spain
Constructed	1997–1998 2002 (5 additional cars)
Refurbished	2012–2013[1]
Scrapped	2020–2021
Number built	14
Number preserved	0 (3 cars from 1 unit)
Number scrapped	13
Successor	Class 387
Formation	9 × 4-car units 5 × 5-car units
Fleet numbers	332001–332014
Capacity	4 cars: 203 seats 5 cars: 267 seats
Owners	Heathrow Airport Holdings
Operators	Heathrow Express
Depots	Old Oak Common (London)
Specifications
Car body construction	Steel
Car length	End cars: 22.95 m (75 ft 4 in) Intermediate cars: 22.9 m (75 ft 2 in)
Width	2.73 m (8 ft 11 in)
Height	3.77 m (12 ft 4 in)
Maximum speed	109 mph (176 km/h)
Weight	4 cars: 173 t (170 long tons; 191 short tons) 5 cars: 208 t (205 long tons; 229 short tons)
Power output	1,400 kW (1,900 hp)[2]
Acceleration	1 m/s2 (2.2 mph/s)[2]
Electric system(s)	25 kV 50 Hz AC overhead
Current collector(s)	Pantograph
Safety system(s)	ATP AWS
Coupling system	Scharfenberg Type 10[3]
Multiple working	Within class
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge

The British Rail Class 332 (originally Class 331) were electric multiple unit passenger trains used on the Heathrow Express. These trains went from London Paddington station to Heathrow Airport. There were 14 trains which had four or five carriages each. They were built in 1998 by CAF with traction equipment supplied by Siemens Transportation Systems at a factory in Zaragoza, Spain.

1. ↑ "Which way from Heathrow?". The Railway Magazine. No. 1454. May 2022. pp. 26–31.
2. ↑ ^{2.0 2.1} "Reference Brochure Trains" (PDF). mobility.siemens.com. Archived from the original (PDF) on 6 October 2011. Retrieved 2021-12-30.
3. ↑ System Data for Mechanical and Electrical Coupling of Rail Vehicles in support of GM/RT2190 (PDF). London: Rail Safety and Standards Board. 22 June 2011. p. 4. SD001. Archived from the original (PDF) on 1 April 2012. Retrieved 22 November 2022.