789 series

789 series
789 series on a Super Hakucho service in August 2010
In service	2002–Present
Manufacturer	Kawasaki Heavy Industries
Replaced	485 series, 781 series
Constructed	2002–2011
Number built	75 vehicles
Number in service	70 vehicles
Number scrapped	5 vehicles
Formation	5-8 cars per trainset
Operator(s)	JR Hokkaido
Depot(s)	Hakodate (789 series), Sapporo (789-1000 series)
Specifications
Car body construction	Stainless steel
Car length	21,670 mm (71 ft 1 in) (end cars), 21,300 mm (69 ft 11 in) (intermediate cars)
Width	2,928 mm (9 ft 7.3 in)
Height	4,020 mm (13 ft 2 in)
Doors	2 per side
Maximum speed	140 km/h (85 mph) (789 series) 130 km/h (80 mph) (789-1000 series)
Traction system	IGBT-VVVF
Electric system(s)	20 kV AC (50 Hz)
Current collection method	Overhead line
Safety system(s)	ATS-PS, ATS-DN
Track gauge	1,067 mm (3 ft 6 in)

The 789 series (789系^?) is an AC electric multiple unit (EMU) train type operated by Hokkaido Railway Company (JR Hokkaido) on limited express services in Hokkaido, Japan, since 2002. Two variants exist: the original 789 series for use on Super Hakuchō services, and the 789-1000 series for use on Super Kamui and Suzuran services.

A total of 40 cars were built between 2000 and 2005 for use on new Super Hakuchō services introduced from 1 December 2002 between Hachinohe (Shin-Aomori from December 2010) and Hakodate via the undersea Seikan Tunnel coinciding with the opening of the Tōhoku Shinkansen extension to Hachinohe.

The trainsets were formed as four 2-car half sets, HE-101–104, and five 3-car half-sets, HE-201–205, which were coupled to produce 5- or 8-car formations.

From December 2005, new SaHa 789-100 trailer cars were added to the original 2-car sets HE-101–104, and a fifth set, HE-105 was delivered. Two additional 2-car sets, HE-301 and HE-302, were also delivered for extending trains to up to eight cars during period seasons.

Two new 3-car sets, HE-106 and HE-206, were delivered in April 2011.

Cars 2, 4, and 7 were each fitted with one N-PS789 single-arm pantograph.

Cars 2, 5, and 7 are each fitted with one N-PS789 single-arm pantograph.

Green class saloon of KuRoHa 789-100 car, August 2011

Interior of MoHa 788-100 car, August 2011

Interior of MoHa 789-200 car, August 2011