125 series

Japanese single-car DC electric multiple unit train type

125 series

Kakogawa Line KuMoHa 125-10 in January 2019

Manufacturer| Kawasaki Heavy Industries
Built at| Hyogo
Replaced| KiHa 40, KiHa 47, KiHa 58
Constructed| 2002–2006
Entered service| 15 March 2003
Number built| 18 cars
Number in service| 18 cars
Formation| Single car unit
Fleet numbers| F1–8, F13–18, N1–4
Capacity| 117
Operators| JR-West
Depots| Tsuruga, Aboshi
Lines served|

* Obama Line
* L Maizuru Line
* I Kakogawa Line

Specifications
Car body construction| Stainless steel
Car length| 20,340 mm (66 ft 9 in)
Width| 2,950 mm (9 ft 8 in)
Height| 4,095 mm (13 ft 5.2 in)
Doors| 2 pairs per side
Maximum speed| 120 km/h (75 mph)
Traction system| Variable frequency (2-level IGBT)
Power output| 440 kW (590 hp)
Electric system(s)| 1,500 V DC (overhead line)
Current collector(s)| WPS28A single-arm pantograph
Bogies| WDT59A (motored), WTR243B (trailer)
Safety system(s)| ATS-P
Track gauge| 1,067 mm (3 ft 6 in)

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]

## Design

[edit]

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]

* 125 series first-batch car, June 2004

* 125 series first-batch (left) and third-batch (right) cars coupled together, showing the difference in front-end skirt lengths and window tint

## Operations

[edit]

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

[edit]

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

[edit]

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

[edit]

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 then-newly electrified 84.3-kilometre (52.4 mi) 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 (30.1 mi) 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 V DC electrification from 21 October 2006.[1][2]

From the start of the revised timetable on 18 March 2023, 125 series trainsets began operation on the Maizuru Line.[3]

## Further reading

[edit]

* 125系一般形直流電車 [125 series DC EMU]. Japan Railfan Magazine (in Japanese). 43 (503): 61–65\. March 2003.

## References

[edit]

1. ^ a b c d e f g h i 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. ^ a b c d e 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.
3. ^ "JR西日本125系、ダイヤ改正後の舞鶴線で運用 - 113系とともに活躍" [JR West 125 series begin on the Maizuru Line after the timetable revision alongside the 113 series]. MyNavi Corporation (in Japanese). 21 March 2023. Retrieved 22 March 2023.

Wikimedia Commons has media related to JR West 125.

* v
* t
* e

Multiple units of West Japan Railway Company

Current /
active|

| Shinkansen|

|       AC EMUs|

* 500
* 700
* N700
* N700S
* W7

|

Conventional
lines
(Narrow-
gauge)|

| DC EMUs|

* 103
* 105
* 113
* 115
* 117
* 123
* 125
* 201
* 205
* 207
* 213
* 221
* 223
* 225
* 227
* 321
* 323

* 271
* 273
* 281
* 283
* 285
* 287
* 289

AC/DC EMUs|

* 521

* 681
* 683

DMUs|

* KiHa 40
* KiHa 120
* KiHa 121/126 [ja]
* KiHa 122/127

* 87
* KiHa 187
* KiHa 189

Non-revenue|

| EMU|

* 923-3000
* 145 [ja]

|

| Diesel|

* KiYa 141 [ja]
* KiYa 143

|

Diesel-electric|

* DEC700
* DEC741

Retired /
withdrawn|

| Shinkansen|

|       AC EMUs|

* 0
* 100
* 300

|

Conventional
lines|

| DC EMUs|

* KuMoHa 42 [ja]
* KuMoNi 83 [ja]
* KuMoHa 84 [ja]
* 101
* 211
* 165
* 167
* 183
* 381

AC/DC EMUs|

* 413
* 415
* 419
* 457
* 471
* 475
* 485
* 489
* 583

DMUs|

* KiHa 20
* KiHa 30/35
* KiHa 33 [ja]
* KiHa 37 [ja]
* KiHa 38
* KiHa 23/53 [ja]
* KiHa 52
* KiHa 58/28 [ja]
* KiHa 65 [ja]
* KiHa 181

Non-revenue|

| EMU|

* 922-20
* WIN350
* KuMoYa 90 [ja]
* KuMoYa 91 [ja]
* KuMoYa 441 [ja]
* 443 [ja]
* U@tech (223/213)

|

DMU|

* KiYa 191 [ja]

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