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 335 vehicles (23 10-car sets, 21 5-car sets)
Number in service 325 vehicles
Formation 5/10 cars per trainset
Operator(s) JR East
Depot(s) Katsuta
Line(s) served Ueno-Tokyo Line, 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 K451–469 (19 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]

Sets K551–:[4]

Car No. 11 12 13 14 15
Designation Tc' M' M T Tc
Numbering KuHa E530-5000 MoHa E530-4000 MoHa E531-3000 SaHa E531-3000 KuHa E531-4000

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

The original 10-car sets delivered without bilevel Green cars were formed as follows.[5]

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).[5]

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).[5]

Interior[edit]

History[edit]

The first E531 series trains entered service on 9 July 2005.[6]

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.[7] This was followed in December 2014 by a five-car set, K469, also delivered from J-TREC in Yokohama.[8]

Build details[edit]

The build details for the fleet as of 1 October 2014 are as shown below.[9]

10-car sets[edit]

Set No. Manufacturer Date delivered Green cars inserted
K401 Tokyu Car 16 March 2005 20 November 2006
K402 Kawasaki Heavy Industries 13 May 2005 4 December 2006
K403 Tokyu Car 19 May 2005 22 December 2006
K404 Kawasaki Heavy Industries 27 May 2005 19 January 2007
K405 Kawasaki Heavy Industries 17 June 2005 31 January 2007
K406 Tokyu Car 23 June 2005 15 February 2007
K407 JR East, Niitsu 8 March 2006 22 November 2006
K408 JR East, Niitsu 29 March 2006 6 December 2006
K409 JR East, Niitsu 21 April 2006 25 December 2006
K410 JR East, Niitsu 17 May 2006 26 March 2007
K411 JR East, Niitsu 9 June 2006 1 February 2007
K412 JR East, Niitsu 23 June 2006 23 November 2006
K413 JR East, Niitsu 4 July 2006 24 November 2006
K414 JR East, Niitsu 13 July 2006 13 December 2006
K415 JR East, Niitsu 22 July 2006 14 December 2006
K416 JR East, Niitsu 2 August 2006 27 December 2006
K417 JR East, Niitsu 12 August 2006 28 December 2006
K418 JR East, Niitsu 23 August 2006 24 January 2007
K419 JR East, Niitsu 1 September 2006 25 January 2007
K420 JR East, Niitsu 9 September 2006 5 February 2007
K421 JR East, Niitsu 20 September 2006 6 February 2007
K422 JR East, Niitsu 30 September 2006 19 February 2007
K423 J-TREC, Yokohama 3 October 2014 (Included from new)
  • Note that many sets incorporate cars (cars 4, 5, 6 and 9) built by manufacturers other than those listed above due to reforming when Green cars were inserted between 2005 and 2006.[9]

5-car sets[edit]

Set No. Manufacturer Date delivered
K451 Tokyu Car 8 March 2005
K452 Kawasaki Heavy Industries 11 May 2005
K453 Tokyu Car 22 May 2005
K454 Kawasaki Heavy Industries 27 May 2005
K455 Tokyu Car 10 June 2005
K456 Tokyu Car 1 July 2005
K457 JR East, Niitsu 4 March 2006
K458 JR East, Niitsu 25 March 2006
K459 JR East, Niitsu 8 April 2006
K460 JR East, Niitsu 2 May 2006
K461 JR East, Niitsu 1 June 2006
K412 JR East, Niitsu 17 June 2006
K463 JR East, Niitsu 7 October 2006
K464 JR East, Niitsu 13 October 2006
K465 JR East, Niitsu 21 October 2006
K466 JR East, Niitsu 27 October 2006
K467 JR East, Niitsu 17 June 2010
K468 JR East, Niitsu 23 July 2010
K469 J-TREC, Yokohama December 2014[8]
K470 J-TREC, Yokohama January 2015[10]
K471 J-TREC, Yokohama January 2015[10]
K551 J-TREC, Yokohama October 2015[4]

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): 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 E531系K551編成が登場 [E531 series set K551 delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 16 October 2015. Retrieved 16 October 2015. 
  5. ^ 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. 
  6. ^ 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. 
  7. ^ "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. 
  8. ^ a b E531系K469編成総合車両製作所出場 [E531 series set K469 delivered from J-TREC]. RM News (in Japanese). Japan: Neko Publishing Co., Ltd. 19 December 2014. Retrieved 19 December 2014. 
  9. ^ a b JR電車編成表 2015冬 [JR EMU Formations - Winter 2015]. Japan: Kotsu Shimbunsha. 21 November 2014. pp. 46–47. ISBN 978-4-330-51614-1. 
  10. ^ a b E531系K470編成・K471編成が出場 [E531 series sets K470 and K471 delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 28 January 2015. Retrieved 28 January 2015. 

Further reading[edit]

  • 首都圏新系列車両PROFILE [Tokyo Area New-generation Rolling Stock Profile]. Japan: Ikaros Publishing. 15 April 2011. ISBN 978-4-86320-436-2. 

External links[edit]