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.
- 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
- Profile
- main-line
- Total capacity
- 206 or 207 seats, and 4 or 6 tip-up
- Status
- In service: 34 three-car units.
Sources
- Class 320, Eversholt Rail (34 three-car units, including 320/4s converted from 321s; BREL; in service 1990; formation; seats; 90 mph; 25 kV AC; Shields Road depot)
- ScotRail, Wikipedia, accessed 5 October 2026 (22 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) 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; EC207 (indicative 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, 19 (indicative drawing's livery: the rules for colours, arrows, vignettes and the margin round the doors, and the Class 314 sheet they are measured from)
- Class 318 and 320 photographs ('Dalmuir - Scotrail 318257+318269.JPG', 'Shields - Scotrail 320309.JPG'), Wikimedia Commons (Geof Sheppard, CC BY-SA 4.0), 2025-2026 (indicative drawing: a 320/3 driving car's doors and windows checked, the livery's layout and the cantrail line)
unverified the split of 22 Class 320/3s and 12 Class 320/4s (Wikipedia), top speed: Eversholt gives 90 mph for the fleet; Wikipedia gives 100 mph 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, and the cantrail line's height (about 3.18 m) and the grey roof's edge (about 3.35 m) are estimated from a photograph, the drawing's bogie frames and underframe equipment: a plain schematic, not drawn from a source (the diagrams draw only the wheels)