List of British Rail electric multiple unit classes
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This article lists every electric-powered multiple unit allocated a TOPS classification or used on the mainline network since 1948, i.e. British Railways and post-privatisation. For a historical overview of electric multiple unit development in Great Britain, see British electric multiple units.
British Rail operated a wide variety of electric multiple units for use on electrified lines:
- AC units operate off 25 kV alternating current (AC) from overhead wires. Where clearances for the overhead wires on the Great Eastern Main Line, North Clyde Line and London, Tilbury and Southend railway routes were below standard, a reduced voltage of 6.25 kV AC was used. The Midland Railway units used 6.6 kV AC. Under the computer numbering, AC units (including mixed-voltage units that can also work off a DC supply) were given a class in the range 300–399.
- DC units operate off 650–850 V direct current (DC) from a third rail on the Southern Region and North London, Merseyside and Tyneside networks. The Manchester-Bury Railway line used 1,200 V DC from a side-contact third rail. The Manchester South Junction & Altrincham and "Woodhead" and initially the Great Eastern Railway routes used 1,500 V DC from overhead wires. Under the computer numbering, DC units were given a class in the range 400–599.
First generation
DC EMUs
Southern Region units
The Southern Railway and its successor, the Southern Region of British Rail, used three letter codes to classify their DC EMU fleets, as shown after the TOPS class numbers. Southern Region EMUs were classified in the 400 series under TOPS.
Pre-Nationalisation

| TOPS class | SR class | Name or Information | Built | Quantity (sets) | Withdrawn | Notes | Image | Scrapped |
|---|---|---|---|---|---|---|---|---|
| Class 401 | 2-BIL | 1935–38 | 152 | 1965–71 | 151 | |||
| Class 402 | 2-Hal |
|
100 | 1969–71 | All | |||
| 2-Pan[citation needed] | ||||||||
| 2-Nol | 1934–36 | 78 | 1956–59 | |||||
| 2-SL | South London | 1929 | 8 | 1954 | ||||
| 2-WIM | Wimbledon-Croydon | 1929 | 4 | |||||
| 3-SUB | 1946–51 | 184 | 1976–83 | |||||
| 4-BUF | 1937–38 | 85 | 1964 | |||||
| Class 404 | 4-Cor | 1968–71 | 28 | |||||
| 4-DD | Double Deck EMU | 1949 | 2 | 1971 | ||||
| 4-Gri | All | |||||||
| 4-LAV |
|
35 | 1968–69 | |||||
| 4-RES | ||||||||
| Class 405 | 4-SUB | About 184 | ||||||
| Class 403 | 5-BEL | Brighton Belle London Victoria-Brighton | 1932 | 15 | 1 (p) | 2 | ||
| 6-CIT | London Bridge-Brighton | 38 in total | ||||||
| 6-Pan | Pantry units | |||||||
| 6-Pul | Pullman London Victoria-Brighton |
Mark 1 and 2 bodyshell

| TOPS class | SR class | Name or Information | Image | Scrapped |
|---|---|---|---|---|
| Class 410 | 4-Bep | About 114 in total | ||
| Class 411 | 4-Cep | |||
| Class 412 | 4-Bep | |||
| Class 413 | 4-Cap | 2 x 2Hap permanently coupled | All | |
| Class 414 | 2-Hap | 207 | ||
| Class 415 | 4-EPB | 282 | ||
| Class 416 | 2-EPB | 121 | ||
| Class 418 | 2-Sap | 2Hap units with declassified 1st Class accommodation | All | |
| Class 419 | MLV | London-Dover/Folkestone boat trains | 2 | |
| Class 420 | 4-Big | About 140 in total | ||
| Class 421 | 4/3-Cig 3-Cop |
Last 2 units of this type in service were withdrawn in 2010 | ||
| Class 422 | 4-Big 8-Dig |
|||
| Class 423 | 4-Vep 4-Vop |
About 188 in total | ||
| Class 427 | 4-Veg | First stock used for Gatwick Express | ||
| Class 430 | 4-Rep | 14 | ||
| Class 431 | 6-Rep | |||
| Class 432 | 4-Rep | |||
| Class 438 | 3-TC 4-TC |
27 | ||
| Class 480 | 8-Vab | - | ||
| Class 482 (I) | 8-Mig | |||
| Class 488 | Gatwick Express Trailers | 14 | ||
| Class 489 | GLV | Gatwick Express driving trailers | 3 | |
| Class 499 (I) | TLV | All |
Tube Stock
Rolling stock built to London Underground deep tube loading gauge.
| TOPS class | Number Built | SR class | Name or Information | Image | Number Scrapped |
|---|---|---|---|---|---|
| Class 482 (II) | 10 x 4-car | Waterloo & City line sold to London Underground |
None | ||
| Class 483 | 10 x 2-car | Island Line ex LU 1938 stock |
4 | ||
| Class 485 | 6 x 4-car | 4-Vec | ex LU Standard stock | about 5 | |
| Class 486 | 6 x 3-car | 3-Tis | ex LU Standard stock | All | |
| Class 487 | 28 x 1-car | Waterloo & City Line | 27 |
Note that TOPS class 499 is currently allocated to London Underground owned stock that needs to use Network Rail owned tracks. This does not involve any renumbering of the stock involved, and is only for electronic recording purposes.[13]
Modern EMUs


| TOPS class | SR class | Number Built | Name or Information | Image | Scrapped |
|---|---|---|---|---|---|
| Class 424 | 1 | Networker Classic Prototype | 1 | ||
| Class 442 | 5-Wes | 24 | Wessex Express | 119 cars | |
| Class 444 | 5-Des | 45 | Siemens Desiro | None | |
| Class 445 | 4-Pep | 2 | Second Generation EMU prototype – 4 car | All | |
| Class 446 | 2-Pep | 1 | Second Generation EMU prototype – 2 car | ||
| Class 447 | Never Built | Proposed Battersea Bullet | Never built | ||
| Class 450 | 4-Des | 127 | Siemens Desiro | None | |
| Class 455 | 137 | 83 | |||
| Class 456 | 24 | All | |||
| Class 457 | 1 | DC Networker prototype | 1 | ||
| Class 458 | 5-Jop | 36 | Juniper | None | |
| Class 460 | 8-Gat | 8 | Juniper – Gatwick Express | DMLFOs
(4 cars) | |
| Class 465 | 147 | Networker – 4 car | None | ||
| Class 466 | 43 | Networker – 2 car | |||
| Class 471 | Never Built | Proposed Networker – Main Line Express | Never built | ||
| Class 484 | 5 x 2-car | Island Line D-Train ex-LU D78 Stock |
None |
Other DC units
The 500 series classes were reserved for miscellaneous DC EMUs not from the Southern Region. This included the DC (third/fourth rail) lines in North London, Manchester and Merseyside and the OHLE lines in Greater Manchester. The DC electric network around Tyneside had been de-electrified by the time TOPS was introduced, and the stock withdrawn or transferred to the Southern Region.

- TOPS classes
| Class | Info | Image | Number Built | Withdrawn | Notes | Scrapped |
|---|---|---|---|---|---|---|
| Class 501 | North London stock | 57 | 1985 | 650 V Third & Fourth Rail | 56 | |
| Class 502 | Liverpool-Southport/Ormskirk stock | 61 | 1980 | 650 V Third Rail | 150 cars | |
| Class 503 | Mersey-Wirral stock | 45 | 1985 | 650 V Third Rail | 44 | |
| Class 504 | Manchester-Bury stock | 26 | 1991 | 1.2 kV Side Contact Third Rail (Unique on BR network) |
25 | |
| Class 505 | Manchester-Altrincham stock | 22 sets | 1971 | 1.5 kV OHLE | ? | |
| Class 506 | Manchester-Hadfield/Glossop stock | 8 | 1984 | 1.5 kV OHLE | About 7 | |
| Class 507 | Merseyside stock | 33 | 2022–2024 | 750 V Third Rail | 32[14] | |
| Class 508 | Merseyside stock | 43 | 2022–2024 | 750 V Third Rail | 41 | |
| Class 510 | Original classification of Class 455 |
- Pre-TOPS classes
- Ex-LNER units (Tyneside stock)
- Ex-LNWR units (North London stock)
- Ex-LOR units (Liverpool Overhead Railway stock)
- Ex-LYR units (Manchester-Bury stock)
- Ex-Mersey Railway units (Merseyside DC stock)
- Ex-W&CR units (Waterloo & City Railway stock)
Battery electric multiple unit (BEMU)
The original BEMU was a one-off unit, withdrawn before the introduction of TOPS. A new generation battery EMU (called an Independently Powered Electric Multiple Unit) was created in 2014, converted from a Class 379.[citation needed]
| Class | Info | Image | Notes |
|---|---|---|---|
| BEMU | Experimental 2 Car | ||
| Class 230 | D-Train | DEMU DMU Diesel-Battery hybrid |