E231 series

The  is an electric multiple unit (EMU) train type used for commuter and outer-suburban services operated by East Japan Railway Company (JR East) in Japan since 2000.

Variants
 10px / 10px / 10px E231-0 series: 8-car, 10-car, and 10+5-car sets used on the Chūō–Sōbu Line, Jōban Line, Narita Line, Musashino Line, and the Keiyō Line
 10px E231-500 series: 10-car sets used on Chūō–Sōbu Line
 10px E231-800 series: 10-car sets used on Chūō–Sōbu Line and Tokyo Metro Tozai Line interrunning services
 10px E231-900 series: 8-car set used on the Musashino Line and Keiyō Line
 10px E231-1000 series: 10+5-car suburban sets used on the Tōkaidō Main Line, Utsunomiya Line, and Takasaki Line, and on Ueno–Tokyo Line and Shōnan–Shinjuku Line through services
 10px E231-3000 series: 4-car sets converted from former E231-0 series sets for use on the Kawagoe Line and Hachikō Line

 Former operations 
10px E231-500 series: 11-car sets used on the Yamanote Line from 21 April 2002 until 20 January 2020
 10px E231-900 series: 10-car set used on the Chūō–Sōbu Line from December 1998 until 25 February 2020 (designated as 209-950 series until June 2000)

Gallery

Category:Electric multiple units