{{short description|Japanese train type}} {{Use dmy dates|date=August 2014}} {{Infobox train | name = 303 series | image = Series303-Chikuhi-Line.jpg | caption = A 303 series train in August 2017 | service = January 2000 – present | manufacturer = [[Kinki Sharyo]] | factory = | family = | replaced = | yearconstruction = 1999–2002 | yearservice = | refurbishment = | yearscrapped = | numberconstruction = | numberbuilt = 18 vehicles (3 sets) | numberservice = 18 vehicles (3 sets) | numberpreserved = | numberscrapped = | formation = 6 cars per trainset | fleetnumbers = K01–K03 | capacity = | operator = [[JR Kyushu]] | depots = Karatsu | lines = [[Chikuhi Line]], [[Airport Line (Fukuoka)|Fukuoka City Subway Airport Line]] | carbody = Stainless steel | carlength = {{Convert|20.25|m|ftin|abbr=on}} (end cars)<br />{{Convert|20|m|ftin|abbr=on}} (intermediate cars) | width = {{Convert|2.8|m|ftin|abbr=on}} | height = {{Convert|3.62|–|4.05|m|ftin|abbr=on}} | floorheight = {{Convert|1.13|m|ftin|abbr=on}} | 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 = Hitachi or Toyo Denki [[Insulated-gate bipolar transistor|IGBT]]–[[Variable-frequency drive|VVVF]] | traction motors = 16 × MT401K {{Convert|150|kW|abbr=on}} 3-phase AC induction motor | poweroutput = {{Convert|2.4|MW|abbr=on}} | transmission = | aux = | powersupply = | hvac = | electricsystem = {{1,500 V DC}} [[Overhead line|Overhead catenary]] | collectionmethod = [[Pantograph (transport)|Pantograph]] | bogies = DT405K, TR405K | brakes = | safety = ATC, ATO | coupling = | multipleworking = | gauge = {{track gauge|1067mm|lk=on}} }}
The {{Nihongo|'''303 series'''|303系}} is a DC [[electric multiple unit]] (EMU) commuter train type operated by [[Kyushu Railway Company]] (JR Kyushu) on [[Chikuhi Line]] and [[Airport Line (Fukuoka)|Fukuoka City Subway Airport Line]] through-running services in [[Kyushu]], Japan, since 22 January 2000.<ref name="haraguchi2009">{{cite book |last = Haraguchi|first = Takayuki |title = Encyclopedia of JR's Railway Cars: ＪＲ全車両 |publisher = Sekai Bunka |date = 2009 |location = Japan |page =６７ |isbn = 978-4-418-09905-4}}</ref>
==Design== The 303 series trains were designed to augment the [[103-1500 series]] EMUs used on the Chikuhi Line, coinciding with double-tracking of the section between {{STN|Shimoyamato|x}} and {{STN|Chikuzen-Maebaru|x}}.<ref name="neko2009">{{cite book |title = JR全車輌ハンドブック2009 |trans-title=JR Rolling Stock Handbook 2009|publisher = Neko Publishing |date = 2009 |location = Japan |pages =385–386, 637 |isbn = 978-4-7770-0836-0}}</ref> The trains have lightweight stainless bodies with painted steel cab ends.<ref name="neko2009"/>
==Operations== The 303 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]].<ref name="jrr2014_summer"/> They are compatible with [[automatic train operation]] (ATO) used on the Fukuoka Subway tracks, and are also equipped for ''wanman'' [[driver only operation]].<ref name="neko2009"/>
==Formations== The fleet consists of three six-car sets, numbered K01 to K03 and based at Karatsu Depot. The sets are formed as shown below with four motored ("M") intermediate cars and non-powered driving trailer ("Tc") cars, with car 1 at the Nishi-Karatsu end.<ref name="neko2009"/><ref name="jrr2014_summer">{{cite book |title = JR電車編成表 2014夏 |trans-title=JR EMU Formations - Summer 2014 |publisher = Kotsu Shimbunsha |date = 30 May 2014 |location = Japan |page =220 |isbn = 978-4-330-46614-9}}</ref>
{| class="wikitable" |- ! Car No. !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 |- ! Designation | Tc || M || M' || M || M' || Tc' |- ! Numbering | KuHa 303 || MoHa 303-100 || MoHa 302-0 || MoHa 303-0 || MoHa 302-100 || KuHa 302 |- ! Weight (t) | 28.4 || 33.6 || 32.4 || 32.4 || 32.7 || 26.4 |- ! Capacity (total/seated) | 140/45 || 153/51 || 153/51 || 153/51 || 153/51 || 140/45 |}
Cars 2 and 5 are each equipped with two PS402K single-arm [[Pantograph (rail)|pantographs]].<ref name="jrr2014_summer"/>
==Interior== Passenger accommodation consists of longitudinal bench seating throughout.<ref name="neko2009"/> Car 1 has a [[universal access]] toilet.<ref name="jrr2014_summer"/>
<gallery> File:JRK303syanai.jpg|Interior view, July 2010 File:JR303Restroom.jpg|The universal-access toilet in car 1, July 2010 </gallery>
==History== The trains entered service on 22 January 2000.<ref name="jrr2014_summer"/> A toilet was retrofitted to car 1 in each set between 2003 and 2004 at JR Kyushu's Kokura Works.<ref name="jrr2014_summer"/>
==Build details== [[File:303Toilet.JPG|thumb|The blocked-off window at the retro-fitted toilet position in car 1]] The three sets were built by [[Kinki Sharyo]] between 1999 and 2002.<ref name="jrr2014_summer"/> The fleet build details are as shown below.<ref name="jrr2014_summer"/>
{| class="wikitable" |- ! Set No. !! Manufacturer !! Date delivered !! Toilet added |- | K01 || rowspan="3" | Kinki Sharyo || 1 December 1999 || 21 October 2003 |- | K02 || 4 December 1999 || 7 November 2003 |- | K03 || 28 August 2002 || 30 January 2004 |}
==References== {{Commons category}} {{reflist}}
{{JR Kyushu rolling stock}}
== External links== * [https://www.kinkisharyo.co.jp/english/ourproducts/?cat=1#product_list Kinki sharyo]
[[Category:Electric multiple units of Japan]] [[Category:Kyushu Railway Company]] [[Category:Train-related introductions in 2000]] [[Category:Kinki Sharyo multiple units]] [[Category:1500 V DC multiple units of Japan]]