Rolling stock › In serviceData updated
Class 320
British Rail's three-car electric for Glasgow's suburban lines, which entered service in 1990. The fleet includes Class 320/4s converted from Class 321s, and works with the Class 318s from Shields Road depot.
Scale
Class 320 · indicative drawing GB Trains · gbtrains.uk/stock/320/ · CC BY 4.0
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Liveries
Special liveries 1
- Ex-London Midland livery on 320/4 (320411, 320412, 320416) Entered service Mar 2016 in London Midland colours before relivery.
Former liveries 2
Orange and black (Strathclyde)Ran as BR / Strathclyde PTEFormer1990 to 1997Not drawn yet
SPT carmine and creamRan as SPT / ScotRailFormer1997 to 2011-13Not drawn yet
- Type
- Electric multiple unit
- Builder
- BREL
- In service
- since 1990
- Operators
- ScotRail
- Formation
- 3 cars (DTS-MS-DTS)
- Fleets
- ScotRail: 34
- Top speed
- 90 mph (145 km/h)
- Power
- 25 kV AC overhead · how it works
- Bogies
- BREL T3 trailer bogies (T3-7 on the Classes 319, 320 and 769; T3-16 on the 325); BREL P7 motor bogies (P7-4 on the Classes 319, 320 and 769; P7 on the 325) · drawn with the same bogie component as Class 325, Class 769 FLEX
- Profile
- main-line
- Total capacity
- 206 or 207 seats, and 4 or 6 tip-up
- Status
- In service: 34 three-car units.
Sources
How we source figures → · Spotted a mistake? Tell us → (opens in a new tab)
Show the 21 sources from Wikimedia Commons, Wikipedia, Eversholt Rail and 6 more
- Class 320 Eversholt Rail34 three-car units, including 320/4s converted from 321s; BREL; in service 1990; formation; seats; 90 mph (145 km/h); 25 kV AC; Shields Road depot
- ScotRail Wikipedia, accessed 5 October 202622 of 320/3 and 12 of 320/4
- Vehicle Diagram Book No. 210 for Electric Multiple Units (including A.P.T.), with the Class 318 (EE227, EE228, EC207; October 1986), Class 319 (EE233, EE234, EC209, EH234; January 1988) and Class 321 (EE236, EC210; October 1988) diagrams British Railways Board, Mechanical & Electrical Engineering Department (PDF copy by J. D. Faulkner, 2012, from the book lent by Eddie Knorn; copyright BRB Residuary Ltd), 1986-1988, pp. EE236, EC210; EC207indicative drawing: the Class 321's dimensioned diagrams (DTS, PMS), measured, from which the 320 derives; the Class 318 MS as a cross-check
- Identity Guidelines for Scotland's Railway, version 1.1: Rolling stock (pp. 14-36), with ScotRail's train outlines (livery sheets) and decals Transport Scotland, 2023, pp. 15-17, 19indicative drawing's livery: the rules for colours, arrows, vignettes and the margin round the doors, and the Class 314 sheet they are measured from
- ScotRail Saltire photographs, side-on or nearly ('Abellio ScotRail class 380 "Electrostar" EMU 380014 at Largs', 2021-06-21; 'Largs - ScotRail 380020 Glasgow service', 2025-06-08; 'Eastfield - ScotRail 385014 and 385111', 2025-06-09; 'Scotrail Train at Falkirk Grahamston (47738786752)', 2019; 'British Rail Class 385s - Abellio ScotRail 385123 (3)', 2020-01-31; 'Motherwell - ScotRail 320316 Dalmuir service', 2025-06-07; 'Glasgow Queen Street - ScotRail 153377 West Highland Explorer', 2025-06-09; 'ScotRail Class 156 DMU in 2022', 2022-10-06; '318261 in saltire livery at Gourock', 2019-10-29) Wikimedia Commons (Matt Buck, CC BY-SA 2.0; Geof Sheppard, CC BY-SA 4.0; Daniel from Glasgow, CC BY 2.0; Kevin.B, CC BY-SA 4.0; Coopydood, CC BY-SA 4.0; dave souza, CC BY-SA 4.0), 2019-2025the Saltire's dots: where the arrows and vignettes sit, and the dots a row and rows a field (layout and count only)
- Class 318 and 320 photographs ('Dalmuir - Scotrail 318257+318269.JPG', 'Shields - Scotrail 320309.JPG') Wikimedia Commons (Geof Sheppard, CC BY-SA 4.0), 2025-2026indicative drawing: a 320/3 driving car's doors and windows checked, the livery's layout and the cantrail line
- Class 318 and 320 underframes: 'Rail vehicle 18909 320316 (7489953436).jpg' (320 316 at Doncaster, 2012, CC BY-SA 2.0), 'General Railway Pictures 2017 324.jpg' (318 265 at Partick, 2017, CC BY-SA 2.0), 'Partick - Abellio 318265+320308 Balloch service.JPG' (2016, CC BY-SA 4.0) Oxyman and Geof Sheppard, via Wikimedia Commons, 2012-2017indicative drawing: layout of the underframe equipment (photographs; the motor car's partly seen)
- British Rail Class 320 Wikipedia, accessed 9 October 2026bogie types: BREL P7-4 (motor) and T3-7 (trailer), citing BR's Diagram Book 210
- Greater Anglia 321314: 'Greater Anglia 321314 (62988, motor bogie).JPG' and 'Greater Anglia 321314 (78062, non-powered bogie).JPG' (photographs, 17 September 2023, CC BY-SA 4.0) Geof Sheppard, via Wikimedia Commons, 2023the bogies: the P7-4 motor and T3-7 trailer bogies' layout (a Class 321's, near side on; photographs, layout only), and the cab-door steps on the driving trailer's cab-end bogie (78062's: two treads about half the cab door's width, 0.30 to 0.79 of it behind its front edge, on an upright post from the bogie frame)
- BREL Mark 3 EMU cab ends in photographs: 'Greater Anglia Class 321 (321301).jpg' (2015; CC BY-SA 4.0, Samson Ng), 'ScotRail Class 320 No. 320416 at Partick.jpg' (2017; CC BY-SA 4.0, ScottD2998) and 'Royal Mail Class 325 325001 (40897762764).jpg' (2018; CC BY 2.0, Kat's Transport Photography) Wikimedia Commons, 2015-2018cross-check of the cab-door steps (photographs, layout only; none resolves them)
- Dalmuir - Scotrail 320305 Airdrie service.JPG (photograph, 21 August 2026, CC BY-SA 4.0) Wikimedia Commons, 21 August 2026the dark door-leaf glass (colour only)
- Hyndland - Abellio 320304 eastbound.JPG (photograph, CC BY-SA 4.0) Wikimedia Commons (Geof Sheppard), 18 September 2015the dark door-leaf glass (colour only)
- Bedford railway station MMB 19 319365.jpg and MMB 20 319365.jpg (photographs: 319365's raised pantograph against the sky from the platform, near side on; CC BY-SA 3.0) mattbuck, via Wikimedia Commons, 11 June 2011the pantograph's insulators hidden in the well, the base frame on the roof line (track level, layout only)
- ScotRail Saltire photographs, side-on or nearly ('Abellio ScotRail class 380 "Electrostar" EMU 380014 at Largs', 2021-06-21; 'Largs - ScotRail 380020 Glasgow service', 2025-06-08; 'Eastfield - ScotRail 385014 and 385111', 2025-06-09; 'Scotrail Train at Falkirk Grahamston (47738786752)', 2019; 'British Rail Class 385s - Abellio ScotRail 385123 (3)', 2020-01-31; 'Motherwell - ScotRail 320316 Dalmuir service', 2025-06-07; 'Glasgow Queen Street - ScotRail 153377 West Highland Explorer', 2025-06-09; 'ScotRail Class 156 DMU in 2022', 2022-10-06; '318261 in saltire livery at Gourock', 2019-10-29) Wikimedia Commons (Matt Buck, CC BY-SA 2.0; Geof Sheppard, CC BY-SA 4.0; Daniel from Glasgow, CC BY 2.0; Kevin.B, CC BY-SA 4.0; Coopydood, CC BY-SA 4.0; dave souza, CC BY-SA 4.0), 2019-2025indicative drawing: the cab arrow's extent, across the cab door (320316 at Motherwell, 2025; layout only)
- ScotRail Saltire photographs, side-on or nearly ('Abellio ScotRail class 380 "Electrostar" EMU 380014 at Largs', 2021-06-21; 'Largs - ScotRail 380020 Glasgow service', 2025-06-08; 'Eastfield - ScotRail 385014 and 385111', 2025-06-09; 'Scotrail Train at Falkirk Grahamston (47738786752)', 2019; 'British Rail Class 385s - Abellio ScotRail 385123 (3)', 2020-01-31; 'Motherwell - ScotRail 320316 Dalmuir service', 2025-06-07; 'Glasgow Queen Street - ScotRail 153377 West Highland Explorer', 2025-06-09; 'ScotRail Class 156 DMU in 2022', 2022-10-06; '318261 in saltire livery at Gourock', 2019-10-29) Wikimedia Commons (Matt Buck, CC BY-SA 2.0; Geof Sheppard, CC BY-SA 4.0; Daniel from Glasgow, CC BY 2.0; Kevin.B, CC BY-SA 4.0; Coopydood, CC BY-SA 4.0; dave souza, CC BY-SA 4.0), 2019-2025indicative drawing: the cab door's window, as shares of the door (320316 at Motherwell, 2025; rectified)
- 'ScotRail Class 320 No. 320416 at Partick.jpg' (photograph: 320416, ex-321416, its driving car three-quarter from ahead; CC BY-SA 4.0) Wikimedia Commons (ScottD2998, CC BY-SA 4.0), 3 May 2017indicative drawing: the cab door's window, as shares of the door (rectified; a second photograph)
- Motherwell - ScotRail 320316 Dalmuir service (photograph: the cab end near side on), with Class 320 bui (three-quarters, 2021) Wikimedia Commons (Geof Sheppard, CC BY-SA 4.0; 314manh, CC BY-SA 4.0), 7 June 2025indicative drawing: the cab-end arrow's dots, counted and placed on one lattice, and their sizes (layout only)
- Dalmuir - Scotrail 320320 (318259).JPG (photograph, 21 August 2026, CC BY-SA 4.0) Wikimedia Commons, 21 August 2026the drawing's accessible-area marking at door 2 of DTS 77918 (layout and colour only; set T13F)
- Dalmuir - Scotrail 320305 Airdrie service.JPG (photograph, 21 August 2026, CC BY-SA 4.0) Wikimedia Commons, 21 August 2026the drawing's cycle-area marking at door 1 of DTS 77935 (layout only; set T13F)
- British Rail Class 320 Wikipedia, read 13 October 2026the livery, its unit and its dates
- A Guide to Overhead Electrification (132787-ALB-GUN-EOH-000001, rev 10) Network Rail (prepared by Alan Baxter), February 2015, p. 39the contact wire in the In operation drawing: 15 ft 5 in (4.7 m) above rail, Network Rail's normal height
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unverified
- The split of 22 Class 320/3s and 12 Class 320/4s (Wikipedia)
- Top speed: Eversholt gives 90 mph (145 km/h) for the fleet; Wikipedia gives 100 mph (161 km/h) for the 320/4s
- The drawing is indicative: no dimensioned drawing of a Class 320 was found, so it is drawn from British Rail's diagrams of the Class 321 it derives from (EE236, EC210); a photograph of the 320/3 77929 (2025) matches its doors and windows to about 0.1 m, except the two windows behind the cab, which it puts 0.1-0.25 m from the 321's
- The drawing's 320/4s: converted 321s, drawn as the 320/3
- The drawing's livery: the arrows and vignettes follow the guidelines' rules and their Class 314 sheet (the vignettes' dots measured on it, the arrows' at the Class 380 sheet's figures), and the cantrail line's height (about 10 ft 5 in (3.18 m)) and the grey roof's edge (about 11 ft 0 in (3.35 m)) are estimated from a photograph
- The drawing's bogies: laid out from photographs of a Class 321's P7-4 and T3-7 bogies (layout only; the diagrams draw only the wheels), scaled by the drawing's wheels and wheelbase; the underframe equipment is a plain schematic, not drawn from a source
- The bogie types: BREL P7-4 (motor) and T3-7 (trailer), from Wikipedia, citing BR's Diagram Book 210, which predates the class
- The cab-end arrow's dots are read from one photograph (2025); the far driving trailer, the same car type turned round, has the arrow's lean reversed about its point, so its rows too step left going down as seen (SA32, 11 October 2026), and the lower arm's dots are drawn on the field's lattice where the photograph shows them a little closer together
- The drawing's door markings (set T13F): each read off one oblique platform photograph, about +/-50-100 mm along the car and +/-40-60 mm up (77918 at Dalmuir, 2026; 77935 at Dalmuir, 2026, from above); both photographs show the side with the cab on the right, and the other side is taken to carry them at the same doors; which driving trailer is drawn as car 1 is not established
- The years of the former liveries come from Wikipedia's class article and the other sources listed, and haven't been checked against a second source.
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