E531 series

Japanese electric multiple unit train type

The E531 series is an electric multiple unit (EMU) train type operated by East Japan Railway Company in Japan. It was introduced by JR East on 9 July 2005 to replace the aging 403 and 415 series EMUs running on the Jōban Line from Ueno Station in Tokyo. The stock is a dual-voltage development of the DC-only E231 series suburban EMU design, and can run at speeds of up to 130 km/h (81 mph) in service.

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