The British Rail Class 931 was reserved for former Southern Region electrical multiple units converted for departmental use. See also Rail transport in Great Britain, National Rail, Network Rail This article is about the defunct entity "British Railways" An electric multiple unit or EMU is a Multiple unit train consisting of many carriages using Electricity as the motive power Originally the series was reserved for Route Learning and Stores units. In recent years, however, other types have also been given numbers in this series.
The Southern Region initially numbered its departmental EMUs in a series between S1 and S101. In 1968, a new series was adopted; 001-099. Existing units were renumbered to fit in that series, which also included other non-passenger stock, i. e. those EMUs converted for parcels traffic. It should be noted that several of the numbers 001-099 have been reused for different units.
When TOPS class numbers were applied, these units mostly retained their existing numbers as the last three digits of their new TOPS class number. Total Operations Processing System, or TOPS, is a computer system for managing the Locomotives and Rolling stock ( Railroad cars owned by The table below lists all the units numbered in the Class 931 series, together with the route learning and stores units used by the SR prior to the application of TOPS numbers. Total Operations Processing System, or TOPS, is a computer system for managing the Locomotives and Rolling stock ( Railroad cars owned by
| Key: | In service | Withdrawn | Preserved | Reclassified | Scrapped |
|---|
| Unit No. | Converted | Use | Former
Class |
Final livery | Original Formation | Wdn. | Status | |||
|---|---|---|---|---|---|---|---|---|---|---|
| TOPS | SR Series | Original | DM | DM (*DT) | ||||||
| 931001 | - | ? | ? | Route learner unit | 416 | NSE | 977857 ex. The British Rail Class 416 (or 2EPB) Electric multiple units were built between 1953 and 1956 65346 | 977856* ex. 77531 | 2002 | Scrapped (2004) |
| 931002 | - | ? | ? | Route learner unit | 416 | NSE | 977917 ex. The British Rail Class 416 (or 2EPB) Electric multiple units were built between 1953 and 1956 65331 | 977918* ex. 77516 | 2002 | Scrapped (2004) |
| - | 018 (2nd) | ? | ? | Stores unit | 416 | Blue | 977290 ex. The British Rail Class 416 (or 2EPB) Electric multiple units were built between 1953 and 1956 65318 | 977291 ex. 65324 | 1993 | Scrapped (1993) |
| - | 019 (2nd) | ? | ? | Stores unit | 418 | Blue | 977068 ex. British Rail Class 418 (or 2Sap) was a class of Electrical multiple unit commissioned by British Railways Southern Region 14549 | 977069* ex. 16029 | 1993 | Scrapped (1993) |
| - | 020 (2nd) | ? | ? | Stores unit | 414 | Blue | 977213 ex. The British Rail Class 414 (or 2Hap) Electric multiple units were built between 1956 and 1963. 61627 | 977214 ex. 75362 | 1988 | Scrapped (1988) |
| - | 022 | 2613/2669 | ? | Stores unit | 402 | Blue | DS70315 ex. The Southern Railway (SR gave the designation 2Hal to the Electric multiple units built during the late 1930s to work long-distance semi-fast services on the newly 10731 | DS70318 ex. 10787 | ? | Scrapped (1985) |
| - | 023 | 2624/2642 | ? | Stores unit | 402 | Blue | DS70316 ex. The Southern Railway (SR gave the designation 2Hal to the Electric multiple units built during the late 1930s to work long-distance semi-fast services on the newly 10742 | DS70317 ex. 10760 | ? | Scrapped (1987) |
| - | 024 | 4378 | 1973 | Stores unit | 405 | Blue | 975250 ex. The Southern Railway (SR gave the designation Sub to the wide variety of Electric multiple units that were used on inner-suburban workings in the South London 10829 | 975251 ex. 10830 | 1989 | Scrapped (1990) |
| 931062 | ex. 930026 | ? | ? | Carriage cleaning fluid unit | 416 | NSE | 977559 ex. The British Rail Class 416 (or 2EPB) Electric multiple units were built between 1953 and 1956 65313 | 977560 ex. 65320 | 2002 | Scrapped (2004) |
| 931090 | - | 9010 | ? | Tractor unit | 419 | NSE | 68010 | - | 1997 | Preserved |
| 931091 | - | 9001 | ? | Tractor unit | 419 | NSE | 68001 | - | 1998 | Preserved |
| 931092 | - | 9002 | ? | Tractor unit | 419 | NSE | 68002 | - | 2004 | Preserved |
| 931093 | - | 9003 | ? | Tractor unit | 419 | Blue | 68003 | - | 1997 | Preserved |
| 931094 | - | 9004 | ? | Tractor unit | 419 | NSE | 68004 | - | 1997 | Preserved |
| 931095 | - | 9005 | ? | Tractor unit | 419 | LSE "Jaffa Cake" | 68005 | - | 1997 | Preserved |
| 931096 | - | 9006 | ? | Tractor unit | 419 | LSE "Jaffa Cake" | 68006 | - | 1994 | Scrapped (1994) |
| 931097 | - | 9007 | ? | Tractor unit | 419 | LSE "Jaffa Cake" | 68007 | - | 1997 | Scrapped (2006) |
| 931098 | - | 9008 | ? | Tractor unit | 419 | NSE | 68008 | - | 1997 | Preserved |
| 931099 | - | 9009 | ? | Tractor unit | 419 | LSE "Jaffa Cake" | 68009 | - | 1997 | Preserved |