735 series

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(s)	JR Hokkaido
Depot(s)	Sapporo
Specifications
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)
Width	2,800 mm (9 ft 2 in)
Doors	3 per side
Maximum speed	120 km/h (75 mph)
Acceleration	2.2 km/h/s
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.

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.

Sets are formed as shown below.

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

KuHa 735-102

MoHa 735-102

KuHa 735-202

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.

Interior view, August 2010

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

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