{{short description|Japanese train type}} {{Use dmy dates|date=October 2023}} {{Infobox train | name = 711 series | image = JNR 711 series EMU 029.JPG | imagealt = | imagesize = 300px | caption = 711 series set S-113 in service in January 2009 | service = 1968 – March 2015 | manufacturer = {{hlist|[[Hitachi]]|[[Kawasaki Heavy Industries]]|[[Kisha Seizo]]|[[Tokyu Car]]}} | factory = | family = | replaced = | yearconstruction = 1967–1980 | yearservice = | refurbishment = | yearscrapped = | numberconstruction = | numberbuilt = 114 vehicles (38 sets) | numberservice = None | numberpreserved = 3 vehicles | numberscrapped = | formation = 3 cars per trainset | fleetnumbers = | capacity = | operator = [[JR Hokkaido]] | depots = Sapporo | lines = [[Hakodate Main Line]], [[Chitose Line]], [[Muroran Main Line]] | carbody = Steel | trainlength = | carlength = {{convert|20000|mm|ftin|abbr=on}} | width = {{convert|2950|mm|ftin|abbr=on}} | height = | floorheight = | entrylevelorstep = | doors = 2 per side | maxspeed = {{convert|110|km/h|mph|abbr=on}} | weight = | acceleration = | deceleration = | traction = [[Thyristor drive]] | traction motors = MT54A<br />MT54E | poweroutput = | aux = | powersupply = | hvac = | electricsystem = 20 kV AC (50 Hz) | collectionmethod = Overhead line | bogies = DT38 (motored), TR208 (trailer) | brakes = | safety = [[Automatic train stop|ATS-SN]], ATS-DN | coupling = | multipleworking = | gauge = {{RailGauge|1067mm|lk=on}} }}

The {{Nihongo|'''711 series'''|711系|711-kei}} was an [[Alternating current|AC]] [[electric multiple unit]] (EMU) train type operated by [[Hokkaido Railway Company]] (JR Hokkaido) on [[Sapporo]] area suburban services in [[Hokkaido]], Japan, from 1968 until March 2015. It was the first AC EMU train to be operated in Japan by the former [[Japanese National Railways]] (JNR).<ref name="neko2009">{{cite book | script-title=ja: JR全車輌ハンドブック2009 |trans-title=JR Rolling Stock Handbook 2009| publisher = Neko Publishing | year = 2009 | location = Japan | page = 8| isbn = 978-4-7770-0836-0|title=Jēāru zensharyō handobukku: Rail Magazine 2009}}</ref> The last remaining trains in service were withdrawn on 13 March 2015.<ref name="railfan650">{{cite journal|script-title=ja: 2015春のJRダイヤ改正|trans-title= JR Spring 2015 Timetable Revision |journal = [[Japan Railfan Magazine]] |volume = 55|issue = 650 |page=19 |language = ja |date = June 2015}}</ref>

==Fleet== By 1 October 2014, 36 vehicles (12 sets) were still in service, all based at Sapporo Depot.<ref name="jrr2015_winter">{{cite book |script-title=ja: JR電車編成表 2015冬 |trans-title=JR EMU Formations – Winter 2015 |publisher = Kotsu Shimbunsha |date = 21 November 2014 |location = Japan |language = ja |isbn = 978-4-330-51614-1}}</ref>

==Formations== The 711 series trains were formed as three-car sets with one motored intermediate car and two non-powered driving trailer cars, as shown below.<ref name="jrr2010">{{cite book |script-title=ja: JR電車編成表 2010夏 |trans-title=JR EMU Formations – Summer 2010| publisher = Kotsu Shimbunsha| date = May 2010 | location = Japan | page = 2| isbn = 978-4-330-14310-1}}</ref>

{| class="wikitable" |- ! Car No. ! 1 !! 2 !! 3 |- ! Designation | Tc' || M || Tc |- ! Numbering | KuHa 711-200 || MoHa 711-100 || KuHa 711-100 |}

Car 2 was fitted with one N-PS785 single-arm pantograph.<ref name="jrr2010"/>

===Former prototype sets S901/902=== The former prototype sets, S901 and S902 were formed as shown below.<ref name="jrr1998">{{cite book |script-title=ja: JR電車編成表 '98夏号 |trans-title=JR EMU Formations – Summer 1998 | publisher = JRR | date = July 1998 | location = Japan | page = 5| isbn = 978-4-88283-029-0}}</ref>

{| class="wikitable" |- ! Designation | Tc || Mc || Tc' |- ! Numbering | KuHa 711-100 || KuMoHa 711-900 || KuHa 711-900 |}

==Interior== Seating consisted of a mixture of transverse seating bays and longitudinal bench seating.<ref name="neko2009"/>

<gallery> File:Kuha711 210inside01.JPG|Interior of KuHa 711-210 (set S-110) in October 2011 File:Kuha711 210inside02.JPG|A four-person seating bay in KuHa 711-210 (set S-110) in October 2011 </gallery>

==History==

===Prototype sets=== [[File:JNR 711 S901.jpg|thumb|Former prototype set S901 leading a 6-car formation at Sapporo, 1994]] Two prototype two-car sets, numbered KuMoHa 711-901 + KuHa 711-901 and KuMoHa 711-902 + KuHa 711-902, were delivered in February 1967 for test running ahead of the start of electric suburban services between {{STN|Otaru|x}} and {{STN|Takikawa|x}} from 1968. Both sets were based on the KiHa 22 diesel multiple unit design, but set 901 had opening two-pane windows and featured two sets of four-leaf folding doors per side, whereas set 902 had sealed double-glazed windows, as used on the subsequent full-production sets. The two sets were modified to full-production standards in 1968 and 1970, but set 901 retained its opening windows.<ref name="prototype2005">{{cite book | script-title=ja: プロトタイプの世界 – Prototype World | publisher = Kotsu Shimbunsha | date = December 2005 | location = Japan | page = 111| oclc=170056962}}</ref>

===Full-production sets=== The first full-production three-car sets were delivered from August 1968.<ref name="neko2009"/> A third, centre, door was added to some of the KuHa 711 cars from 1987.<ref name="neko2009"/> All cars became no-smoking from 1 July 1992.<ref name="jrr2010"/> Priority seating was added from 1 October 1997.<ref name="jrr2010"/> Air conditioning was added to the two-door sets between 2001 and 2002.<ref name="jrr2010"/> The original scissors-type pantographs were replaced with N-PS785 single-arm pantographs between 2004 and 2005.<ref name="jrr2010"/>

<gallery> File:JNR-711EMU S107.jpg|Set S107 in original livery in 1982 File:JNR 711 series EMU 073.JPG|Set S-111 with three-door end cars, November 2009 </gallery>

===Repainted sets=== [[File:JR HOKKAIDO EC711 S-114.jpg|thumb|Repainted set S-114 in June 2012]] In 2011, set S-110 was repainted into its original [[JNR]] all-over crimson livery, and this was followed in May 2012 by a second similarly repainted set, S-114.<ref name="railfan617">{{cite journal| last = Katayama | script-title=ja: 5/28, 711系 S-114編成, 2編成目の国鉄色に|trans-title= 28 May: 711 series set S-114 2nd set to be repainted in JNR livery| journal = [[Japan Railfan Magazine]] | volume = 52| issue = 617|page=161| date = September 2012}}</ref>

===Withdrawal=== [[File:711 series 24 series Jinyamachi Rinkai Yard 20150703.jpg|thumb|Withdrawn 711 series sets awaiting cutting up at Jinyamachi Rinkai Yard in Muroran, Hokkaido, in July 2015]] The last remaining sets in service were withdrawn on 13 March 2015.<ref name="railfan650"/>

{{Clear}}

==Preserved examples== {{As of|2017|07}}, three 711 series vehicles have been preserved, as follows.<ref name="sasada2017">{{cite book |script-title=ja: 保存車大全 コンプリート |trans-title= Preserved Rolling Stock Complete Work |last = Sasada|first = Masahiro |publisher = Ikaros Publications Ltd.|date = 25 July 2017 |location = Tokyo, Japan |language = ja |page = 224|isbn = 978-4802203845|title= 保存車大全コンプリート: 3000両超保存車を完全網羅 }}</ref> * '''KuHa 711 29''': Preserved in [[Chitose, Hokkaido]], and used as the "Cafe Garden Station" restaurant * '''KuHa 711 103 + KuHa 711 203''': Preserved outside in [[Iwamizawa, Hokkaido]]

<gallery> File:JNR711 S-103 Aguri Station 20151003.jpg|Preserved cars KuHa 711 103 + KuHa 711 203 in October 2015 </gallery>

{{Clear}}

==References== {{reflist}}

==Further reading== {{commons category}} * {{cite book |script-title=ja: 711系物語 |trans-title=The 711 series story |publisher = JTB Publishing | date = 28 March 2015 |location = Japan |language = ja |isbn = 978-4533103483|title=711系物語: 北海道初の「赤電車」誕生から引退まで半世紀のあゆみ }}

{{JNR EMU}} {{JR Hokkaido trainsets}}

[[Category:Electric multiple units of Japan]] [[Category:Hokkaido Railway Company]] [[Category:Train-related introductions in 1967]] [[Category:Hitachi multiple units]] [[Category:Tokyu Car multiple units]] [[Category:20 kV AC multiple units]] [[Category:Kawasaki multiple units]] [[Category:Kisha Seizo multiple units]] [[Category:1967 establishments in Japan]]