E129 series

The E129 series (E129系) is a DC electric multiple unit (EMU) train type operated by East Japan Railway Company (JR East) on local services in the Niigata area since 6 December 2014.

E129 series
Two-car set A5 in December 2014
Built atNiitsu
Replaced115 series
Entered service6 December 2014
Number built164 vehicles (57 sets)
Number in service164 vehicles (57 sets) (as of 31 December 2017)
Formation2/4 cars per trainset
Fleet numbersA1-A32, B1-B25
Operator(s)JR East
Car body constructionStainless steel
Car length19,570 mm (64 ft 2 in) (end cars)
19,500 mm (64 ft 0 in) (intermediate cars)
Width2,950 mm (9 ft 8 in)
Height3,620 mm (11 ft 11 in)
Floor height1,130 mm (3 ft 8 in)
Doors3 pairs per side
Maximum speed110 km/h (70 mph)
Traction systemVariable frequency (IGBT)
Acceleration2.0 km/h/s
Deceleration3.6 km/h/s
Electric system(s)1,500 V DC
Current collection methodOverhead catenary
BogiesDT71 (motored)
TR255 (trailer)
Safety system(s)ATS-P, ATS-Ps
Multiple workingE127 series, under emergency conditions
Track gauge1,067 mm (3 ft 6 in)


Built at the J-TREC factory in Niitsu, Niigata, the stainless steel body and "universal design" interior is derived from the E233 series commuter EMU.[1] Externally, trains are finished in a livery with "golden yellow" (黄金イエロー) and "toki pink" (朱鷺ピンク) stripes.[1] The trains have a maximum speed of 110 km/h (70 mph).[1]


E129 series trains operate on the following lines,[2] completely replacing older 115 series sets by around 2017.[3][4]

The E129 series trains can operated in multiple, to form 2+2, 2+4, and 2+2+2 formations, but do not operate in multiple with E127 series trains except in emergencies.[1]


The E129 series fleet will ultimately consist of 30 two-car sets (60 vehicles) numbered A1 to A30 and 25 four-car sets (100 vehicles) numbered B1 to B25, all based at Niigata Depot.[1]


2-car sets A1-A30

The two-car sets, A1 to A30, consist of two motored cars, each with one powered bogie, and are formed as shown below.[1]

Designation Mc-100Mc'-100
Numbering KuMoHa E129-100KuMoHa E128-100
Weight (t) 37.237.2
Capacity (total/seated) 140/50133/46
  • The KuMoHa E129-100 car is fitted with a PS33G single-arm pantograph (cars KuMoHa E129-123 to KuMoHa E129-130 have two pantographs, and weigh 37.4 t).[1]
  • The KuMoHa E128-100 car has a universal access toilet.[1]

4-car sets B1-B25

The four-car sets, B1 to B25, consist of four motored cars, each with one powered bogie, and are formed as shown below.[1]

Designation Mc-0M'-0M-0Mc'-0
Numbering KuMoHa E129MoHa E128MoHa E129KuMoHa E128
Weight (t) 37.231.632.737.0
Capacity (total/seated) 140/50154/60154/60133/46
  • The KuMoHa E129 and MoHa E129 cars are each fitted with one PS33G single-arm pantograph.[1]
  • The KuMoHa E128 car has a universal access toilet.[1]


Passenger accommodation consists of a mix of transverse seating bays and longitudinal bench seating.[1] LED lighting is used throughout.[1] Longitudinal seats have a width of 460 mm (1 ft 6 in) per person, 10 mm wider than for the earlier E127 series trains, and the seating pitch for transverse seating bays is 540 mm (1 ft 9 in), approximately 110 mm wider that E233 series trains.[1] Floor height is 1,130 mm (3 ft 8 in), the same as for E127 series trains, and lower than the 1,225 mm (4 ft 0.2 in) floor height of 115 series trains.[1]


Initial details of the new trains were announced by JR East in July 2013.[3] The first two two-car sets, A1 and A2, were delivered on 8 October 2014, with test-running commencing the same day.[5]

The first trains entered revenue service on 6 December 2014.[6]

Fleet details

As of 31 December 2017, the fleet is as follows.[7]

2-car sets

Set No.ManufacturerDate delivered
A1J-TREC, Niitsu17 October 2014
A2J-TREC, Niitsu17 October 2014
A3J-TREC, Niitsu17 October 2014
A4J-TREC, Niitsu23 October 2014
A5J-TREC, Niitsu7 November 2014
A6J-TREC, Niitsu21 November 2014
A7J-TREC, Niitsu8 December 2014
A8J-TREC, Niitsu22 December 2014
A9J-TREC, Niitsu15 January 2015
A10J-TREC, Niitsu28 January 2015
A11J-TREC, Niitsu27 February 2015
A12J-TREC, Niitsu27 February 2015
A13J-TREC, Niitsu20 April 2015
A14J-TREC, Niitsu20 April 2015
A15J-TREC, Niitsu21 May 2015
A16J-TREC, Niitsu21 May 2015
A17J-TREC, Niitsu18 June 2015
A18J-TREC, Niitsu18 June 2015
A19J-TREC, Niitsu16 July 2015
A20J-TREC, Niitsu16 July 2015
A21J-TREC, Niitsu20 August 2015
A22J-TREC, Niitsu20 August 2015
A23J-TREC, Niitsu15 September 2015
A24J-TREC, Niitsu15 September 2015
A25J-TREC, Niitsu16 October 2015
A26J-TREC, Niitsu16 October 2015
A27J-TREC, Niitsu11 November 2015
A28J-TREC, Niitsu11 November 2015
A29J-TREC, Niitsu2 December 2015
A30J-TREC, Niitsu1 February 2016
A31J-TREC, Niitsu11 December 2017[8]
A32J-TREC, Niitsu26 December 2017[8]

4-car sets

Set No.ManufacturerDate delivered
B1J-TREC, Niitsu28 January 2016
B2J-TREC, Niitsu29 January 2016
B3J-TREC, Niitsu1 February 2016
B4J-TREC, Niitsu5 February 2016
B5J-TREC, Niitsu15 February 2016
B6J-TREC, Niitsu19 February 2016
B7J-TREC, Niitsu26 February 2016
B8J-TREC, Niitsu4 March 2016
B9J-TREC, Niitsu10 March 2016
B10J-TREC, Niitsu17 March 2016
B11J-TREC, Niitsu24 March 2016
B12J-TREC, Niitsu31 March 2016
B13J-TREC, Niitsu9 June 2016
B14J-TREC, Niitsu21 June 2016
B15J-TREC, Niitsu1 July 2016
B16J-TREC, Niitsu13 July 2016
B17J-TREC, Niitsu27 July 2016
B18J-TREC, Niitsu5 August 2016
B19J-TREC, Niitsu22 August 2016
B20J-TREC, Niitsu1 September 2016
B21J-TREC, Niitsu13 September 2016
B22J-TREC, Niitsu26 September 2016
B23J-TREC, Niitsu27 January 2017
B24J-TREC, Niitsu6 February 2017
B25J-TREC, Niitsu14 February 2017


  1. Mizutani, Keisuke (January 2015). E129系一般形直流電車 [E129 series DC EMU]. Japan Railfan Magazine (in Japanese). Vol. 55 no. 645. Japan: Koyusha Co., Ltd. pp. 60–66.
  2. JR東日本E129系、新型車両12/6デビュー [New JR East E129 series trains to debut on 6 December]. Mynavi News (in Japanese). Japan: Mynavi Corporation. 1 December 2014. Retrieved 2 December 2014.
  3. 通勤形車両の新造計画について [New commuter train manufacture plans] (PDF) (in Japanese). East Japan Railway Company. 2 July 2013. Retrieved 21 November 2014.
  4. Miki, Kazuya (14 August 2013). 「新潟産」車両、地元に投入 JR東日本のE129系 ["Niigata-built" trains to be introduced locally - JR East E129 series]. Asahi Shimbun Digital (in Japanese). Japan: The Asahi Shimbun Limited. Retrieved 29 November 2013.
  5. E129系が試運転 [E129 series is test run]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 9 October 2014. Retrieved 9 October 2014.
  6. E129系が営業運転を開始 [E129 series enters revenue service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 7 December 2014. Retrieved 9 December 2014.
  7. JR電車編成表 2018冬 [JR EMU Formations - Winter 2018] (in Japanese). Japan: Kotsu Shimbunsha. 15 November 2017. pp. 38–39. ISBN 978-4-330-84117-5.
  8. JR車両のうごき [JR rolling stock changes]. Tetsudo Daiya Joho Magazine (in Japanese). Vol. 47 no. 407. Japan: Kotsu Shimbun. March 2018. p. 102.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.