305 series

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305 series
JR Kyushu 305 series W1.jpg
305 series set W1 on the Chikuhi Line in January 2016
In service5 February 2015
Built atKudamatsu, Yamaguchi
Replaced103-1500 series
Number built36 vehicles (6 sets)
Number in service36 vehicles (6 sets)
Formation6 cars per trainset
Fleet numbersW1-W6
Operator(s)JR Kyushu
Line(s) servedChikuhi Line, Fukuoka Subway Kuko Line
Car body constructionAluminium
Car length20,250 mm (66 ft 5 in) (end cars)
20,000 mm (65 ft 7 in) (intermediate cars)
Width2,800 mm (9 ft 2 in)
Height4,050 mm (13 ft 3 in)
Floor height1,125 mm (3 ft 8.3 in) (1,140 mm (3 ft 9 in) for car 1)
Doors4 pairs per side
Maximum speed110 km/h (70 mph)
Traction motorsPMSM motors
Electric system(s)1,500 V DC
Current collection methodOverhead catenary
Safety system(s)ATS-SK, ATC, ATO
Track gauge1,067 mm (3 ft 6 in)

The 305 series (305系) is a DC electric multiple unit (EMU) commuter train type operated by Kyushu Railway Company (JR Kyushu) on Chikuhi Line and Fukuoka Subway Kuko Line through-running services in Kyushu, Japan, since 5 February 2015.[1] The entire fleet of six six-car sets (36 vehicles) was scheduled to be in service by the start of the 14 March 2015 timetable revision.[2]


An LED destination indicator on the side

The fleet of 36 vehicles (six 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.[3] The new trains are designed to offer improved universal accessibility.[4] Fully enclosed permanent-magnet synchronous motors (PMSM) are used to reduce environmental noise and reduce power consumption by approximately 57% compared with existing 103 series trains.[2]


The 305 series trains are used on through services between Nishi-Karatsu the Chikuhi Line and Fukuokakūkō on the Fukuoka Subway Kuko Line, replacing older 103-1500 series sets.[1][3]


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.[5] Car 1 is at the Nishi-Karatsu end.[5]

Car No. 1 2 3 4 5 6
Designation Tc M Mp M1 M1p T'c
Numbering KuHa 305 MoHa 305 MoHa 304 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 pantographs.[5]


Passenger accommodation consists of longitudinal bench seating with space for wheelchairs or strollers in each car.[4] Each row of seats has a different seat cover design.[2] Large liquid-crystal display screens are used for providing passenger information, and LED lighting is used throughout.[4] Car 1 features wooden flooring of the same design as that used in JR Kyushu's luxury cruising train Seven Stars in Kyushu.[2] Car 1 also has a universal access toilet.[1] The side doors are equipped with passenger-operated open/close buttons, and these are normally available for use between Misakigaoka and Nishi-Karatsu stations on the Chikuhi Line.[2]


The first set, numbered W1, was delivered from the manufacturer Hitachi in Kudamatsu, Yamaguchi to JR Kyushu's Kokura Depot in November 2014,[6] and moved to Karatsu Depot in December 2014.[7]

A special public preview run was held on 31 January 2015, ahead of the formal entry into service on 5 February.[8]

Fleet details[edit]

As of 1 October 2015, the fleet consists of six sets as follows.[9]

Set No. Manufacturer Date delivered
W1 Hitachi 15 December 2014
W2 Hitachi 18 December 2014
W3 Hitachi 9 February 2015
W4 Hitachi 15 February 2015
W5 Hitachi 25 February 2015
W6 Hitachi 3 March 2015


  1. ^ a b c 305系通勤形直流電車 [305 series DC commuter EMU]. Japan Railfan Magazine (in Japanese). 55 (647): 75. March 2015.
  2. ^ a b c d e  JR九州 新型電車305系が筑肥線で運転開始 [New JR Kyushu 305 series trains enter service on Chikuhi Line]. Tetsudō Daiya Jōhō Magazine (in Japanese). 44 (371): 70–71. March 2015.
  3. ^ a b 新型車両・305系、JR筑肥線に導入へ [New 305 series trains to be introduced on JR Chikuhi Line]. Yomiuri Online (in Japanese). Japan: The Yomiuri Shimbun. 1 August 2014. Archived from the original on 2014-08-06. Retrieved 1 August 2014.
  4. ^ a b c "JR九州 筑肥線に305系通勤型直流電車投入" [JR Kyushu to introduce 305 series DC commuter trains on Chikuhi Line]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing. 1 August 2014. Retrieved 1 August 2014.
  5. ^ a b c Matsunaga (June 2015). 305系通勤形直流電車 [305 series DC commuter EMU]. Japan Railfan Magazine (in Japanese). 55 (650): 58–61.
  6. ^ 305系が甲種輸送される [305 series delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 25 November 2014. Retrieved 5 February 2015.
  7. ^ 305系W1編成が唐津へ [305 series set W1 moved to Karatsu]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 3 December 2014. Retrieved 3 December 2014.
  8. ^ 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 [New JR Kyushu 305 series Chikuhi Line train runs between Chikuzen-Maebaru and Karatsu - Service entry from 5 February]. Mynavi News (in Japanese). Japan: Mynavi Corporation. 31 January 2015. Retrieved 5 February 2015.
  9. ^ JR電車編成表 2016冬 [JR EMU Formations - Winter 2016] (in Japanese). Japan: Kotsu Shimbunsha. 18 November 2015. p. 222. ISBN 978-4-330-62315-3.

External links[edit]