Parts of this article (those related to the status of the 651-0 series fleet) need to beupdated. Please help update this article to reflect recent events or newly available information.(May 2022)

651 series
A 651 series in June 2017
In service	1989–March 2023 (regular service)
Manufacturer	Kawasaki Heavy Industries
Built at	Hyogo
Replaced	485 series
Constructed	1988–1992
Refurbished	October 2000 – December 2002
Scrapped	2013–2023
Number built	99 vehicles (18 sets)
Number in service	None
Number scrapped	99 vehicles (18 sets)
Successor	E657 series
Formation	4/7 cars per trainset
Operators	JR East
Depots	Katsuta Omiya Kōzu
Specifications
Car body construction	Steel
Car length	21.5 m (70 ft 6 in) (end cars) 21.1 m (69 ft 3 in) (intermediate cars)[1]
Width	2,900 mm (9 ft 6 in)
Maximum speed	130 km/h (80 mph)[1]
Traction system	Thyristor drive +Resistor control + field system superimposed field excitation control
Acceleration	1.95 km/(h⋅s) (1.21 mph/s)
Deceleration	5.2 km/(h⋅s) (3.2 mph/s)
Electric system(s)	1,500 V DC / 20 kV AC (50 Hz)overhead catenary
Current collector(s)	Pantograph
Bogies	DT56 (motor), T241 (trailer)
Safety system(s)	ATS-P, ATS-Ps
Track gauge	1,067 mm (3 ft 6 in)
Notes/references
This train won the 33rdBlue Ribbon Award in 1990.

The651 series (651系) was anAC/DC dual-voltageelectric multiple unit (EMU) type operated byEast Japan Railway Company (JR East) in Japan between March 1989 and October 2023.^[1]

Trains originally operated as 7+4-car formations onSuper Hitachilimited express services betweenUeno in Tokyo andSendai via theJōban Line, but were withdrawn from regular scheduled services from the start of the revised timetable on 16 March 2013.^[2] The majority of the fleet was subsequently modified to become the 651-1000 series, and re-employed onAkagi andKusatsu limited express services from March 2014.

• 651-0 series: Original (nine 7-car and nine 4-car) AC/DC sets built from 1989
• 651-1000 series: 7-car and 4-car DC-only sets modified from 651-0 series
• Izu Craile: Rebuilt 4-car resort trainset entering service in July 2016

The 651-1000 series sets were used onAkagi,Swallow Akagi, andKusatsu limited express services.^[3]

Beginning in April 2019, a four-car 651-0 series set operated as a local service on a segment of Jōban Line betweenIwaki andTomioka, making 2 round trips a day.

As of 1 October 2015^[update], the fleet of original 651-0 series trainsets consisted of three (out of the original nine) seven-car sets (K102, 103, 105) and five (out of the original nine) four-car sets (K201, 202, 204, 205, 207), based at Katsuta Depot.^[4]

The seven-car sets, K101 to K109, were formed as follows, with four motored ("M") cars and three non-powered trailer ("T") cars, and car 1 at the Ueno (southern) end.^[4]

• Cars 2 and 5 were each fitted with one PS26 lozenge-typepantograph.^[4]
• Cars 1, 3, 4, and 6 had toilets.^[4]

The four-car sets, K201 to K209, were formed as follows, with two motored ("M") cars and two non-powered trailer ("T") cars, and car 8 at the Ueno (southern) end.^[4]

• Car 9 was fitted with one PS26 lozenge-type pantograph.^[4]
• Cars 8 and 10 had toilets.^[4]

As of 1 October 2015^[update], the fleet consisted of six seven-car sets (numbered OM201 to OM206) and three four-car sets (numbered OM301 to OM303), all based at Omiya Depot.^[4]

The seven-car sets, OM201 to OM206, were formed as follows, with four motored ("M") cars and three non-powered trailer ("T") cars, and car 1 at the Ueno (southern) end.^[4][3]

• Cars 2 and 5 were each fitted with one PS33D single-armpantograph.^[4]
• Cars 1, 3, 4, and 6 had toilets.^[4]

The four-car sets, OM301 to OM303, were formed as follows, with two motored ("M") cars and two non-powered trailer ("T") cars, and car 8 at the Ueno (southern) end.^[4][3]

• Car 9 was fitted with one PS33D single-arm pantograph.^[4]
• Cars 8 and 10 had toilets.^[4]

The converted four-car set IR01 (formerly OM301) was formed as follows, with two motored ("M") cars and two non-powered trailer ("T") cars, and car 1 at the southern end.^[5]

Car 2 was fitted with one PS33D single-arm pantograph.^[5]

Internally, Green car (first class) accommodation was arranged 2+1 abreast with a seat pitch of 1,160 mm (46 in), and Standard class is arranged 2+2 abreast with a seat pitch of 970 mm (38 in).^[1][6]

• 
  Green class seating
• 
  Interior view of standard class car

The 651 series trains were introduced on newSuper Hitachi limited services between Ueno and Sendai on 11 March 1989,^[1] and the trains received the 33rdBlue Ribbon Award presented annually in Japan since 1958 by the Japan Railfan Club.^[7]

From 2 December 2000, the Green car (car 4) was made entirely non-smoking, and the internal partitions were removed between December 2000 and January 2001.^[8] Three seats were added to the Green car in June 2004, increasing the seating capacity to 36.^[8] All cars became no-smoking from the start of the revised timetable on 18 March 2007.^[8] The refreshment vending machines were discontinued from 31 March 2008.^[8]

From the start of the revised timetable on 17 March 2012, six pairs of 651 series trains were removed from service and put into storage, replaced by new 10-carE657 series EMUs onSuper Hitachi services.^[9] The entire fleet was replaced by the start of the revised timetable on 16 March 2013, but the sets were however retained for seasonal and additional workings.^[2]

From 1 October 2013, one 11-car 651 series formation was brought back into service for use on twoFresh Hitachi services daily while the E657 series fleet undergoes modification work to add LED seat reservation status indicators above each seat.^[10] This continued until March 2015.^[10][4]

Between late 2013 and early 2014, a number of 651 series sets were modified and renumbered 651-1000 series for use onAkagi andKusatsu limited express services from the start of the revised timetable on 15 March 2014, replacing ageing185 series EMUs.^[3][10] In 2018, seven-car set K102 also underwent this conversion.^[11] The modifications included disconnecting (but not removing) the original AC electrical equipment, replacing the original PS26 lozenge-type pantographs with the same PS33D single-arm pantographs used onE233 series suburban EMUs, and adding an orange bodyside stripe below the windows.^[3] No changes were made to the interiors.^[3]

Four-car set OM301 was rebuilt as a resort train set namedIzu Craile (伊豆クレイル) between November 2015 and April 2016, and entered service on theIto Line and a section of theTokaido Line betweenOdawara andAtami from 16 July 2016.^[5][12] The name is aportmanteau formed from "Cresciuto" (Italian for "mature"), "train", and the suffix "-ile".^[13] Car 1 has window-facing counter seats on the seaward side, car 2 has a bar counter and lounge, car 3 has semi-open compartments, and car 4 has conventional unidirectional 2+2-abreast seating. based at Kōzu Depot.^[5] On 30 January 2020, with the introduction of theE261 series on Saphir Odoriko services, JR East announced that the Izu Craile service would no longer be necessary, and that it would be retired. The train had its last run on 28 June 2020,^[14][15] and was subsequently transported to Nagano General Rolling Stock Centre for scrap in October 2020.^[16]

From the start of the revised timetable on 18 March 2023, the 651 series sets were withdrawn fromKusatsu,Swallow Akagi, andAkagi services, hence marking the end of regular service by the 651 series.^[17]

The last surviving trainset, OM201, was sent for scrap in October 2023.^[18]

The delivery, refurbishment, and conversion dates for the fleet are as shown below. All sets were originally built byKawasaki Heavy Industries inHyogo.^[3][19][11]

Wikimedia Commons has media related toJR East 651.

• 651 seriesAkagi/Kusatsu(in Japanese)

• East Japan Railway Company
• Electric multiple units of Japan
• 20 kV AC multiple units
• Train-related introductions in 1989
• Kawasaki multiple units
• 1500 V DC multiple units of Japan

• CS1 uses Japanese-language script (ja)
• CS1 Japanese-language sources (ja)
• Articles with short description
• Short description is different from Wikidata
• Wikipedia articles in need of updating from May 2022
• All Wikipedia articles in need of updating
• Use dmy dates from October 2020
• Articles containing Japanese-language text
• Articles containing potentially dated statements from October 2015
• All articles containing potentially dated statements
• Commons category link from Wikidata
• Articles with Japanese-language sources (ja)