303 series

303 series
303 series
	Set K02, November 2009
In service	January 2000 – present
Manufacturer	Kinki Sharyo
Constructed	1999–2002
Number built	18 vehicles (3 sets)
Number in service	18 vehicles (3 sets)
Formation	6 cars per trainset
Fleet numbers	K01–K03
Operator(s)	JR Kyushu
Depot(s)	Karatsu
Line(s) served	Chikuhi Line, Fukuoka Subway Kuko Line
Specifications
Car body construction	Stainless steel
Car length	20,000 mm (65 ft 7 in)
Width	2,800 mm (9 ft 2 in)
Height	4,045 mm (13 ft 3.3 in)
Floor height	1,130 mm (3 ft 8 in)
Doors	4 pairs per side
Traction system	IGBT-VVVF
Traction motors	MT401K
Power output	150 kW per motor
Electric system(s)	1,500 V DC
Current collection method	Overhead catenary
Bogies	DT405K, TR405K
Safety system(s)	ATC, ATO
Track gauge	1,067 mm (3 ft 6 in)

The 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 Fukuoka Subway Kuko Line through-running services in Kyushu, Japan, since 22 January 2000.[1]

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 Shimoyamato and Chikuzen-Maebaru.[2] The trains have lightweight stainless bodies with painted steel cab ends.[2]

Operations

The 303 series trains are used on through services between Nishi-Karatsu the Chikuhi Line and Fukuokakūkō on the Fukuoka Subway Kuko Line.[3] They are compatible with automatic train operation (ATO) used on the Fukuoka Subway tracks, and are also equipped for wanman driver only operation.[2]

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.[2][3]

Car No.	1	2	3	4	5	6
Designation	Tc	M	M'	M	M'	Tc'
Numbering	KuHa 303	MoHa 303-100	MoHa 302	MoHa 303	MoHa 302-100	Tc'
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 pantographs.[3]

Interior

Passenger accommodation consists of longitudinal bench seating throughout.[2] Car 1 has a universal access toilet.[3]

Interior view, July 2010
The universal-access toilet in car 1, July 2010

History

The trains entered service on 22 January 2000.[3] A toilet was retrofitted to car 1 in each set between 2003 and 2004 at JR Kyushu's Kokura Works.[3]

Build details

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.[3] The fleet build details are as shown below.[3]

Set No.	Manufacturer	Date delivered	Toilet added
K01	Kinki Sharyo	1 December 1999	21 October 2003
K02	Kinki Sharyo	4 December 1999	7 November 2003
K03	Kinki Sharyo	28 August 2002	30 January 2004

References

Haraguchi, Takayuki (2009). Encyclopedia of JR's Railway Cars: ＪＲ全車両. Japan: Sekai Bunka. p. ６７. ISBN 978-4-418-09905-4.
JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. pp. 385–386, 637. ISBN 978-4-7770-0836-0.
JR電車編成表 2014夏 [JR EMU Formations - Summer 2014]. Japan: Kotsu Shimbunsha. 30 May 2014. p. 220. ISBN 978-4-330-46614-9.

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[haraguchi2009-1] Haraguchi, Takayuki (2009). Encyclopedia of JR's Railway Cars: ＪＲ全車両. Japan: Sekai Bunka. p. ６７. ISBN 978-4-418-09905-4.

[neko2009-2] JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. pp. 385–386, 637. ISBN 978-4-7770-0836-0.

[jrr2014_summer-3] JR電車編成表 2014夏 [JR EMU Formations - Summer 2014]. Japan: Kotsu Shimbunsha. 30 May 2014. p. 220. ISBN 978-4-330-46614-9.