E531 series

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E531 series
Image of E531 series train
An E531 series train at Kita-Senju Station
In service 2005–Present
Manufacturer Tokyu Car Corporation, Kawasaki Heavy Industries, JR East, J-TREC
Replaced 403 series, 415 series
Constructed 2005–2014
Number built 320 vehicles (23 10-car sets, 18 5-car sets)
Number in service 310 vehicles
Formation 5/10 cars per trainset
Operator JR East
Depot(s) Katsuta
Line(s) served Jōban Line, Mito Line
Specifications
Car body construction Stainless steel
Car length 20,000 mm (65 ft 7 in)
Width 2,950 mm (9 ft 8 in)
Floor height 1,130 mm (3 ft 8 in)
Doors 4 pairs per side
Maximum speed 130 km/h (80 mph)
Acceleration 2.5 km/h/s
Deceleration 4.2 km/h/s
Electric system(s) 1,500 V DC & 20 kV AC (50Hz)
Current collection method PS37A single-arm pantograph
Bogies DT71 (motored)
TR255 (trailer)
Braking system(s) Regenerative brake
Safety system(s) ATS-SN, ATS-P, ATS-Ps
Track gauge 1,067 mm (3 ft 6 in)

The E531 series (E531系?) 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 (80 mph) in service.[2]

Operations[edit]

Trains are formed in 10-car (set numbers K-401 onward) and 5-car (set numbers K-451 onward) sets. 15-car formations are generally run between Ueno and Tsuchiura. 10- and 5-car sets operate singly north of Tsuchiura, and 5-car sets are used on the Mito Line.

Formations[edit]

The E531 series sets are formed as shown below with car 1 (11) at the Ueno end. All sets are based at Katsuta Depot.[3]

10-car sets[edit]

Sets K401–423 (23 sets)

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc' M' M Tsd' Tsd T' M' M T Tc
Numbering KuHa E530 MoHa E530 MoHa E531-1000 SaRo E530 SaRo E531 SaHa E530-2000 MoHa E530-2000 MoHa E531-2000 SaHa E531 KuHa E531

Cars 3 and 8 have one single-arm pantograph each. Cars 1, 5, and 10 have toilets (universal access in cars 1 and 10). Car 9 is numbered in the SaHa E531-2000 series for sets K412 to 422 (cars originally used as cars 4 and 5 in sets K401 to 421).[3]

5-car sets[edit]

Sets K451–468 (18 sets)

Car No. 11 12 13 14 15
Designation Tc' M' M T Tc
Numbering KuHa E530-2000 MoHa E530-1000 MoHa E531 SaHa E531 KuHa E531-1000

Car 13 has one single-arm pantograph. Car 11 has a toilet (universal access).[3]

Original 10-car sets (July 2005 – March 2007)[edit]

The original 10-car sets delivered without bilevel Green cars were formed as follows.[4]

Sets K401–406[edit]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc' M' M T T T' M' M T Tc
Numbering KuHa E530 MoHa E530 MoHa E531-1000 SaHa E531-2000 SaHa E531-2000 SaHa E530-2000 MoHa E530-2000 MoHa E531-2000 SaHa E531 KuHa E531

Cars 3 and 8 had one single-arm pantograph each. Cars 1 and 10 had toilets (universal access).[4]

Sets K407–411[edit]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc' M' M T' T' T' M' M T Tc
Numbering KuHa E530 MoHa E530 MoHa E531-1000 SaHa E530-2000 SaHa E530-2000 SaHa E530-2000 MoHa E530-2000 MoHa E531-2000 SaHa E531 KuHa E531

Cars 3 and 8 had one single-arm pantograph each. Cars 1 and 10 had toilets (universal access).[4]

Interior[edit]

History[edit]

The first E531 series trains entered service on 9 July 2005.[5]

Pairs of double-deck "Green" (first class) cars were added to the 10-car sets from 6 January 2007, and all 10-car sets included Green cars by the start of the revised timetable on 18 March 2007.

In September 2014, an additional 10-car set, K423, was delivered from the J-TREC factory in Yokohama, four years after construction of the original fleet had ceased.[6]

References[edit]

  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 (Japan: Tetsudō Journal) 39 (465): p.102. July 2005. 
  3. ^ a b c JR電車編成表 2012冬 [JR EMU Formations - Winter 2012]. Japan: Kotsu Shimbunsha. October 2011. pp. 48–49. ISBN 978-4-330-25611-5. 
  4. ^ a b c JR電車編成表 '07冬号 [JR EMU Formations - Winter 2007]. Japan: JRR. December 2006. p. 47. ISBN 4-88283-046-9. 
  5. ^ JR電車編成表 2012夏 [JR EMU Formations - Summer 2012]. Japan: Kotsu Shimbunsha. May 2012. p. 44. ISBN 978-4-330-28612-9. 
  6. ^ "常磐線E531系が4年ぶりに新造される" [New E531 series built for first time in 4 years]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 1 October 2014. Retrieved 1 October 2014. 

External links[edit]