125 series

The 125 series (125系, 125-kei) is a single-car DC electric multiple unit (EMU) train type operated by West Japan Railway Company (JR-West) on local services in Japan since March 2003.[1]

125 series
Kakogawa Line KuMoHa 125-12 in March 2008
ManufacturerKawasaki Heavy Industries
Built atHyogo
Constructed2002–2006
Entered serviceMarch 2003
Number built18 cars
Number in service18 cars
FormationSingle car unit
Fleet numbersF1–8, F13–18, N1–4
Capacity117
Operator(s)JR-West
Depot(s)Tsuruga, Aboshi
Line(s) servedObama Line, Maizuru Line, Kakogawa Line
Specifications
Car body constructionStainless steel
Car length20,340 mm (66 ft 9 in)
Width2,950 mm (9 ft 8 in)
Height4,095 mm (13 ft 5.2 in)
Doors2 pairs per side
Maximum speed120 km/h (75 mph)
Traction systemVariable frequency (2-level IGBT)
Power output440 kW
Electric system(s)1,500 V DC overhead line
Current collection methodWPS28A single-arm pantograph
BogiesWDT59A (motored), WTR243B (trailer)
Safety system(s)ATS-P
Track gauge1,067 mm (3 ft 6 in)

Design

The 125 series design is based on the 223-2000 series EMU design, with stainless bodies and steel front ends.[1]

The cars have two pairs of sliding doors on each side, with provision for a third set of doors in the centre.[1]

The second-batch cars (KuMoHa 125-9–12) delivered in 2003 differ from the earlier batch by having enlarged front-end skirts and darker grey tinted windows.[1]

Operations

The 125 series is used on wanman driver-only operation services, primarily on the Obama Line and Kakogawa Line.[1]

Up to five single cars can be operated together as a multiple car set.[1]

Formation
Designation cMc
Numbering KuMoHa 125
Capacity
(Seated/standing)		 31/86
Weight 40.5 t

Cars KuMoHa 125-7/8/11/12 are equipped with a second de-icing pantograph.[2]

Interior

Passenger accommodation consists of longitudinal bench seating at the ends, and 2+2 abreast transverse reversible seating in the centre of the cars.[1] The first two batches of cars (KuMoHa 125-1–12) were delivered with 1+2 abreast seating, but this was increased to 2+2 seating during 2003 and 2004.[2]

  • General view of interior (KuMoHa 125-16, April 2008)
  • Reversible seating (KuMoHa 125-16, April 2008)
  • Priority seating (KuMoHa 125-16, April 2008)
  • Doorway and toilet (KuMoHa 125-16, April 2008)

History

The first eight cars (KuMoHa 125-1–8) were built by Kawasaki Heavy Industries in December 2002 for entry into service from 15 March 2003 on the newly electrified 84.3 km Obama Line between Tsuruga and Higashi-Maizuru.[2] These sets were initially allocated to Fukuchiyama Depot, but were subsequently transferred to Tsuruga Depot.[1]

Four more cars (KuMoHa 125-9–12) were built in September 2004 for entry into service from 19 December 2004 on the newly electrified 48.5 km Kakogawa Line between Kakogawa and Tanikawa.[2]

A further six cars (KuMoHa 125-13–18) were built in September 2006 to coincide with the conversion of Tsuruga area services from 20 kV AC to 1,500 DC electrification from 21 October 2006.[1][2]

Further reading
  • 125系一般形直流電車 [125 series DC EMU]. Japan Railfan Magazine (in Japanese). 43 (503): 61–65. March 2003.
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References
  1. JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. p. 258/611. ISBN 978-4-7770-0836-0.
  2. JR電車編成表 2011夏 [JR EMU Formations - Summer 2011]. Japan: JRR. May 2010. p. 142/180. ISBN 978-4-330-21211-1.
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