731 series


The 731 series is an AC electric multiple unit train type operated by Hokkaido Railway Company on Sapporo area suburban services in Hokkaido, Japan since 1996.

Formation

, 21 three-car sets are in service, numbered G-101 to G121, and based at Sapporo Depot. The trainsets are formed as follows, with one motored intermediate car and two non-powered driving trailer cars.
Car No.123
DesignationTc'MTc
NumberingKuHa 731-100MoHa 731-100KuHa 731-200
Capacity
141/50151/52143/50

Car 2 is fitted with one N-PS785 single-arm pantograph.

Interior

Seating consists of longitudinal bench seating throughout, without the vestibule areas used on the earlier 721 series trains.

History

A total of 63 vehicles were delivered to Sapporo Depot between 1996 and 2006. The first units entered service from 24 December 1996.
From the start of 22 March 1997 timetable revision, 731 series EMUs were operated in multiple with KiHa 201 series DMU sets over certain routes.
Polycarbonate window protectors were added in 2002, and the original pantographs were replaced with single-arm pantographs between 2004 and 2005.

Fleet history

The individual build histories of the fleet are as follows.
Set No.Delivery date
G-10112 December 1996
G-10210 December 1996
G-10313 December 1996
G-10414 December 1996
G-10523 February 1998
G-10624 February 1998
G-10724 February 1998
G-10822 March 1998
G-10923 March 1998
G-11024 March 1998
G-11116 December 1998
G-11217 December 1998
G-11318 December 1998
G-11419 December 1998
G-11520 December 1998
G-11620 December 1998
G-11721 December 1998
G-11813 December 1998
G-11913 December 1998
G-1206 March 2006
G-1215 March 2006