{{Short description|Japanese train type}} {{Use dmy dates|date=April 2026}} {{Infobox train | name = 305 series | image = JR-Series305-W5.jpg | caption = 305 series set W5 on the Chikuhi Line in January 2019 | service = 2015–present | manufacturer = [[Hitachi Rail]] | factory = [[Kudamatsu]], [[Yamaguchi Prefecture|Yamaguchi]] | family = [[Hitachi A-train|A-train]] | replaced = [[103-1500 series]] | yearconstruction = 2014–2015 | yearservice = 5 February 2015 | refurbishment = | yearscrapped = | numberconstruction = | numberbuilt = 36 vehicles (6 sets) | numberservice = 36 vehicles (6 sets) | numberpreserved = | numberscrapped = | formation = 6 cars per trainset | fleetnumbers = W1–W6 | capacity = 851 | operator = {{ric|JR Kyushu|name=y}} | depots = Karatsu | lines = {{Plainlist| * {{ric|JR Kyushu|Chikuhi|name=y}} * {{ric|Fukuoka City Subway|1}} [[Airport Line (Fukuoka)|Fukuoka City Subway Airport Line]] }} | carbody = Aluminium alloy | carlength = {{Plainlist| * {{Convert|20250|mm|ftin|abbr=on}} (end cars) * {{Convert|20000|mm|ftin|abbr=on}} (intermediate cars) }} | width = {{Convert|2800|mm|ftin|abbr=on}} | height = {{Convert|4050|mm|ftin|abbr=on}} | floorheight = {{Convert|1125|mm|ftin|abbr=on}}<br /> ({{Convert|1140|mm|ftin|abbr=on}} for car 1) | doors = 4 pairs per side | maxspeed = {{Plainlist| * {{Convert|110|km/h|mph|abbr=on}} (design) * {{Convert|85|km/h|mph|abbr=on}} (service) }} | weight = | acceleration = | deceleration = | traction = [[Toshiba]] PC406K [[IGBT]]–[[VVVF]] | traction motors = 16 × Toshiba MT403K {{Convert|150|kW|0|abbr=on}} [[permanent-magnet synchronous motor]] | poweroutput = {{Convert|2.4|MW|0|abbr=on}} | transmission = | aux = | powersupply = | hvac = | electricsystem = {{1,500 V DC}} [[Overhead line|Overhead catenary]] | collectionmethod = [[Pantograph (transport)|Pantograph]] | bogies = | brakes = | safety = ATS-SK, ATC, ATO | coupling = | multipleworking = | gauge = {{track gauge|1067mm|lk=on}} }}
The {{Nihongo|'''305 series'''|305系}} is a DC [[electric multiple unit]] (EMU) commuter train type operated by [[Kyushu Railway Company]] (JR Kyushu) on the [[Chikuhi Line]] and [[Airport Line (Fukuoka)|Fukuoka City Subway Airport Line]] through-running services in [[Kyushu]], Japan, since 5 February 2015.<ref name="railfan647">{{cite journal|script-title=ja: 305系通勤形直流電車|trans-title= 305 series DC commuter EMU|journal = [[Japan Railfan Magazine]] |volume = 55|issue = 647|page=75 |language = ja |date = March 2015}}</ref> The entire fleet of 6 six-car sets (36 vehicles) was scheduled to be in service by the start of the 14 March 2015 timetable revision.<ref name="dj371">{{cite journal|script-title=ja: JR九州 新型電車305系が筑肥線で運転開始|trans-title= New JR Kyushu 305 series trains enter service on Chikuhi Line|journal = Tetsudō Daiya Jōhō Magazine |volume = 44|issue = 371 |pages=70–71 |language= ja |date = March 2015}}</ref>
==Design== [[File:Outside Information Board of JR KYUSHU 305.jpg|thumb|An LED destination indicator on the side]] The fleet of 36 vehicles (6 six-car sets) will be built by [[Hitachi]] at a cost of approximately 5.7 billion yen, with styling overseen by industrial designer [[Eiji Mitooka]].<ref name="yomiuri20140801">{{cite web |url= http://www.yomiuri.co.jp/kyushu/entame/railway/20140801-OYS1T50019.html |script-title=ja:新型車両・３０５系、ＪＲ筑肥線に導入へ |trans-title=New 305 series trains to be introduced on JR Chikuhi Line |date= 1 August 2014 |work= Yomiuri Online |publisher= [[The Yomiuri Shimbun]]|location= Japan |language= ja |archive-url=https://archive.today/20140806010655/http://www.yomiuri.co.jp/kyushu/entame/railway/20140801-OYS1T50019.html|archive-date=2014-08-06|url-status=dead |access-date= 1 August 2014}}</ref> The new trains are designed to offer improved [[universal accessibility]].<ref name="hobidas20140801">{{cite web |url= http://rail.hobidas.com/news/info/article/141079.html |title= JR九州 筑肥線に305系通勤型直流電車投入 |trans-title= JR Kyushu to introduce 305 series DC commuter trains on Chikuhi Line |date= 1 August 2014 |work= Tetsudo Hobidas |publisher= Neko Publishing |location= Japan |language= ja |access-date= 1 August 2014 |archive-date= 15 July 2018 |archive-url= https://web.archive.org/web/20180715011818/http://rail.hobidas.com/news/info/article/141079.html |url-status= dead }}</ref> Fully enclosed [[permanent-magnet synchronous motor]]s (PMSM) are used to reduce environmental noise and reduce power consumption by approximately 57% compared with existing [[103 series]] trains.<ref name="dj371"/>
==Operations== The 305 series trains are used on through services between {{STN|Nishi-Karatsu|x}} the [[Chikuhi Line]] and {{STN|Fukuoka Airport|x}} on the [[Airport Line (Fukuoka)|Fukuoka City Subway Airport Line]], replacing older [[103-1500 series]] sets.<ref name="railfan647"/><ref name="yomiuri20140801"/>
==Formations== The 305 series trains are formed as six-car sets as shown below, numbered W1 to W6, consisting of four motored intermediate cars and two non-powered driving trailer cars.<ref name="railfan650">{{cite journal|last = Matsunaga |script-title=ja: 305系通勤形直流電車|trans-title= 305 series DC commuter EMU|journal = [[Japan Railfan Magazine]] |volume = 55|issue = 650 |pages=58–61 |language = ja |date = June 2015}}</ref> Car 1 is at the Nishi-Karatsu end.<ref name="railfan650"/>
{| class="wikitable" |- ! Car No. !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 |- ! Designation | Tc || M || Mp || M1 || M1p || T'c |- ! Numbering | KuHa 305 || MoHa 305-0 || MoHa 304-0 || MoHa 305-100 || MoHa 304-100 || KuHa 304 |- ! Weight (t) | 29.5 || 33.0 || 30.8 || 33.0 || 30.7 || 27.3 |- ! Capacity (total/seated) | 128/42 || 147/51 || 147/51 || 147/51 || 147/51 || 135/45 |}
Cars 3 and 5 each have two PS402K single-arm [[Pantograph (rail)|pantographs]].<ref name="railfan650"/>
==Interior== Passenger accommodation consists of longitudinal bench seating with space for wheelchairs or strollers in each car.<ref name="hobidas20140801"/> Each row of seats has a different seat cover design.<ref name="dj371"/> Large [[liquid-crystal display]] screens are used for providing passenger information, and [[LED lighting]] is used throughout.<ref name="hobidas20140801"/> Car 1 features wooden flooring of the same design as that used in JR Kyushu's luxury cruising train ''[[Seven Stars in Kyushu]]''.<ref name="dj371"/> Car 1 also has a [[universal access]] toilet.<ref name="railfan647"/> The side doors are equipped with passenger-operated open/close buttons, and these are normally available for use between {{STN|Misakigaoka|x}} and {{STN|Nishi-Karatsu|x}} stations on the Chikuhi Line.<ref name="dj371"/>
<gallery> File:JRKyushu EMU kuha305-3 inside.jpg|The interior of KuHa 305-3 (car 1 of set W3) with wooden flooring, February 2015 File:JRKyushu EMU moha305-3 inside.jpg|The interior of MoHa 305-3 (car 2 of set W3) with conventional flooring, February 2015 </gallery>
==History== The first set, numbered W1, was delivered from the manufacturer [[Hitachi]] in [[Kudamatsu, Yamaguchi]] to JR Kyushu's Kokura Depot in November 2014,<ref name="railfan20141125">{{cite web |url= https://railf.jp/news/2014/11/25/150000.html |script-title=ja: 305系が甲種輸送される |trans-title= 305 series delivered |date= 25 November 2014|work= Japan Railfan Magazine Online|publisher= Koyusha Co., Ltd.|location= Japan|language= ja|access-date= 5 February 2015}}</ref> and moved to Karatsu Depot in December 2014.<ref name="railfan20141203">{{cite web |url= https://railf.jp/news/2014/12/03/120000.html |script-title=ja: 305系W1編成が唐津へ|trans-title= 305 series set W1 moved to Karatsu|date= 3 December 2014|work= Japan Railfan Magazine Online|publisher= Koyusha Co., Ltd.|location= Japan|language= ja|access-date= 3 December 2014}}</ref>
A special public preview run was held on 31 January 2015, ahead of the formal entry into service on 5 February.<ref name="mynavi20150131">{{cite web |url= https://news.mynavi.jp/news/2015/01/31/106/ |script-title=ja: JR九州305系、筑肥線新型車両が筑前前原～唐津間走行 - 運転開始は2/5予定 |trans-title= New JR Kyushu 305 series Chikuhi Line train runs between Chikuzen-Maebaru and Karatsu - Service entry from 5 February|date= 31 January 2015|work= Mynavi News|publisher= Mynavi Corporation |location= Japan|language= ja|access-date= 5 February 2015}}</ref>
==Fleet details== {{As of|2015|10|01}}, the fleet consists of six sets as follows.<ref name="jrr2016_winter">{{cite book |script-title=ja: JR電車編成表 2016冬 |trans-title= JR EMU Formations - Winter 2016 |publisher = Kotsu Shimbunsha |date = 18 November 2015 |location = Japan |language = ja |page = 222|isbn = 978-4-330-62315-3}}</ref>
{| class="wikitable" |- ! Set No. !! Date delivered |- | W1 || 15 December 2014 |- | W2 || 18 December 2014 |- | W3 || 9 February 2015 |- | W4 || 15 February 2015 |- | W5 || 25 February 2015 |- | W6 || 3 March 2015 |}
==References== {{reflist|30em}}
==External links== {{Commons category}} * [https://web.archive.org/web/20140801063128/http://www13.jrkyushu.co.jp/NewsReleaseWeb.nsf/Search/C90D2FE29AA67F5E49257D260039D6CF?OpenDocument JR Kyushu press release (31 July 2014)] {{in lang|ja}}
{{JR Kyushu rolling stock}}
[[Category:Electric multiple units of Japan]] [[Category:Kyushu Railway Company]] [[Category:Train-related introductions in 2015]] [[Category:Hitachi multiple units]] [[Category:1500 V DC multiple units of Japan]]