Sweden: B7

Also known as: B7A, B7B, B7C, B7G, B7M, B7F, B7FA, B7RU

UIC / EVN numbering: 50 74 22-73

Railway companies: SJ - Swedish State Railways

Display registration numbers

1979

171x units from this series are built between 1979 and 1990.

6x units, 5221 - 5226, are delivered as B7G units: they were intended as A7 units but due to a lack of 1st class interiors they are delivered as 2nd class with four fewer seats than standard B7 carriages.

Sources: https://www.jarnvag.net/vagnguide/b7, https://www.jvmv2.se/forum/index.php?mode=thread&id=273576, https://www.jvmv2.se/forum/index.php?mode=thread&id=122083#p122086

1989

Between 1989 and 1992, 38x units from this series (units 5206 - 5220, 5227 - 5230 and 5276 - 5294) are converted to B8 passenger coaches at the Kalmar Workshop.

Sources: https://jernbane.net/bo/subpage.php?s=3&t=6969, https://www.jarnvag.net/vagnguide/b7

1994

Between 1994 and 1997, 35x units (registration numbers 5201 - 5205, 5221 - 5226, 5297, 5307 - 5326 and 5335 - 5339) are converted to B9 passenger coaches by TGOJ Malmö and Tillberga.

Between 1994 and 1998, 11x units (registration numbers 5295, 5296 and 5298 - 5306) are converted to BFS9 passenger coaches.

Sources: https://jernbane.net/bo/subpage.php?s=3&t=7003, https://www.jarnvag.net/vagnguide/bfs9

2001

13x units are rebuilt as B11 units.

Sources: https://www.jarnvag.net/vagnguide/b7

2009

From 2009, SJ began to modernise the 1980s wagons and all remaining B8 and B9 carriages are converted back to B7 while some A7 1st class carriages are also converted to B7 2nd class carriages.

The interior differs slightly between the various modernised wagons depending on which wagon type they are converted from. They have therefore been given a distinctive additional letter:
wagons rebuilt from A7 receive the letter A and are identified as B7A;
wagons rebuilt from B8 (registration numbers 5276 - 5293) receive the letter B and are identified as B7B;
wagons rebuilt from B9 receive the letter C and are identified as B7C.

Some original B7 carriages are also modernised and receive the letter F and are identified as B7F (these differ from B7A/B/C in that the old seats have been retained).

Sources: https://www.jarnvag.net/vagnguide/b7

2014