735 series

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735 series
Sets A-101 and A-102, May 2012
In service May 2012
Manufacturer Hitachi
Built at Kudamatsu
Constructed 2010
Number built 6 vehicles (2 sets)
Number in service 6 vehicles (2 sets)
Formation 3 cars per trainset
Fleet numbers A-101–102
Capacity 428 (148 seated)
Operator JR Hokkaido
Depot(s) Sapporo
Car body construction Aluminium alloy
Car length 21,200 mm (69 ft 7 in) (end cars), 20,800 mm (68 ft 3 in)(intermediate cars)[1]
Width 2,800 mm (9 ft 2 in)
Doors 3 per side
Maximum speed 120 km/h (75 mph)[2]
Acceleration 2.2 km/h/s[2]
Electric system(s) 20 kV AC
Current collection method Overhead catenary
Bogies N-DT735 (motored), N-TR735 (trailer)
Multiple working 721 series, 731 series, 733 series
Track gauge 1,067 mm (3 ft 6 in)

The 735 series (735系?) is an electric multiple unit (EMU) train type built in 2010 and operated by Hokkaido Railway Company (JR Hokkaido) on suburban services in the Sapporo area in Hokkaido, Japan, since May 2012.


The 735 series is intended as an experimental type to evaluate the suitability of aluminium-body rolling stock in the cold climate of Hokkaido. The cab ends however use steel construction. They were tested in winter conditions from 2010 to 2011.[2]

The 735 series sets are able to run in multiple with 721 series, 731 series, and 733 series suburban EMUs, but not with KiHa 201 series DMUs.[2][3]


Sets are formed as shown below.[2]

Car No. 1 2 3
Designation Tc1 M Tc2
Numbering KuHa 735-100 MoHa 735-100 KuHa 735-200
Weight (t) 31.8 40.1 33.3
137/46 150/52 141/50

The MoHa 735 car is fitted with an N-PS785 single-arm pantograph.[2]


The 735 series design continues the basic configuration of the earlier 731 series with longitudinal seating throughout. The floor is 100 mm lower than on previous trains, for improved accessibility. Car 1 has a universal access toilet.[2]


Set A-101 on display at Sapporo Depot Open Day, August 2010

Two 3-car sets were delivered from the Hitachi factory in Yamaguchi Prefecture in March 2010.[4]

The sets first entered revenue-earning service on 1 May 2012.[5]


  1. ^ "JR北海道 735系通勤型交流電車" [JR Hokkaido 735 series commuter EMU]. Tetsudō Daiya Jōhō Magazine (Japan: Kōtsū Shimbun) 39 (314): p.68–69. June 2010. 
  2. ^ a b c d e f g Izumi, Hiroyuki (June 2010). "735系通勤形交流電車" [735 series AC commuter EMU]. Japan Railfan Magazine (Japan: Kōyūsha Co., Ltd.) 50 (590): p.62–65. 
  3. ^ "JR北海道 733系通勤型交流電車" [JR Hokkaido 733 series AC commuter EMU]. Tetsudō Daiya Jōhō Magazine (Japan: Kōtsū Shimbun) 41 (337): p.69. May 2012. 
  4. ^ Tetsudō Daiya Jōhō Magazine (Japan: Kōtsū Shimbun) 39 (311): p.126. March 2010. 
  5. ^ "JR北海道735系電車が営業運転を開始" [JR Hokkaido 735 series enters revenue service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 May 2012. Retrieved 2 May 2012. 

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