E531 series

E531 series
Image of E531 series train
An E531 series train on the Joban Line (in March 2019 Between Matsudo Station and Kanamachi Station)
In service2005–present
ManufacturerTokyu Car Corporation, Kawasaki Heavy Industries, JR East, J-TREC
Replaced403 series, 415 series, some E501 series
Constructed2005–2020, 2024
Entered service9 July 2005
Number built
  • 461 vehicles
    • 26 × 10-car
    • 40 × 5-car
    • 1 × end car
Number in service460 vehicles
Formation5/10 cars per trainset
Fleet numbers
  • K401–K426 (10-car sets)
  • K451–K483 (standard 5-car sets)
  • K551–K557 (cold-weather 5-car sets)
OperatorsLogo of the East Japan Railway Company (JR East) JR East
DepotsKatsuta
Lines served
Specifications
Car body constructionStainless steel
Car length20,000 mm (65 ft 7 in)
Width2,950 mm (9 ft 8 in)
Floor height1,130 mm (3 ft 8 in)
Doors4 pairs per side
Maximum speed130 km/h (81 mph)
Traction systemPWM 2-level IGBTVVVF (Hitachi)
Traction motors4 × 140 kW (190 hp) 3-phase AC induction motor (Hitachi)
Power output1.12 MW (1,500 hp) (5-car sets)
2.24 MW (3,000 hp) (10-car sets)
Acceleration2.5 km/(h⋅s) (1.6 mph/s)
Deceleration4.2 km/(h⋅s) (2.6 mph/s)
Electric system(s)1,500 V DC and 20 kV 50 Hz AC, both from overhead catenary
Current collector(s)PS37A single-arm pantograph
BogiesDT71 (motored)
TR255 (trailer)
Braking system(s)Regenerative brake
Safety system(s)ATS-SN, ATS-P, ATS-Ps
Track gauge1,067 mm (3 ft 6 in)

The E531 series (Japanese: E531系, Hepburn: E531-kei) is an electric multiple unit (EMU) train type operated by East Japan Railway Company (JR East) in Japan.[1] 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 (1,500 V DC & 20 kV AC) 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.[2]

  1. ^ JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. ISBN 978-4-7770-0836-0.
  2. ^ "E531系一般形交直流電車の概要" [E531 series AC/DC EMU outline]. Railway Journal. 39 (465): 102. July 2005.