789 series on a Super Hakucho service in August 2010
|Manufacturer||Kawasaki Heavy Industries|
|Replaced||485 series, 781 series|
|Number built||75 vehicles|
|Number in service||70 vehicles|
|Number scrapped||5 vehicles|
|Formation||5-8 cars per trainset|
|Depot(s)||Hakodate (789 series), Sapporo (789-1000 series)|
|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)
|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.
Super Hakuchō 789 series
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.
December 2002 – December 2005
|Numbering||KuRoHa 789-100||MoHa 788-100||MoHa 789-200||MoHa 788-200||KuHa 789-200||MoHa 789-200||MoHa 788-200||KuHa 789-200|
Cars 2, 4, and 7 were each fitted with one N-PS789 single-arm pantograph.
December 2005 – March 2016
|Numbering||KuRoHa 789-100||MoHa 788-100||SaHa 789-100||MoHa 789-200||MoHa 788-200||KuHa 789-200||MoHa 788-300||KuHa 789-300|
|Capacity||29 (15 Grn + 14 Std)||60||68||64||68||56||68||56|
Cars 2, 5, and 7 are each fitted with one N-PS789 single-arm pantograph.
Super Kamui and Suzuran 789-1000 series
Seven 5-car 789-1000 series sets, HL-1001–1007, were delivered to Sapporo Depot between June and September 2007, and these entered service from 1 October 2007 on new Super Kamui limited express services between Sapporo and Asahikawa, and on Airport rapid services between Sapporo and New Chitose Airport in conjunction with 785 series EMUs. These replaced the Lilac services formerly operated by 781 series EMUs.
The 789-1000 sets differ from the earlier Super Hakuchō sets in not having gangway doors beneath the driving cabs.
Set HL-1005 was withdrawn in March 2011 following damage sustained in a level crossing collision on 29 January 2010.
|Numbering||KuHa 789-1000||MoHa 789-1000||SaHa 788-1000||MoHa 789-2000||KuHa 789-2000|
Car 3 is fitted with one N-PS785 single-arm pantograph.
The 789-1000 series trainsets do not include Green class (first class) accommodation, but car 4 is designated as a "u-Seat" car with improved seating for reserved seat passengers. All other cars are normally designated as non-reserved seating.
- JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. ISBN 978-4-7770-0836-0.
- Haraguchi, Takayuki (2009). Encyclopedia of JR's Railway Cars: JR全車輌. Japan: Sekai Bunka. p. 53. ISBN 978-4-418-09905-4.
- JR特急電車編成表 1987～2012 [JR Limited Express EMU Formations - 1987-2012]. Japan: JRR. February 2012. pp. 69–71. ISBN 978-4-330-27012-8.
- JR電車編成表 2012夏 [JR EMU Formations - Summer 2012]. Japan: JRR. May 2012. p. 9. ISBN 978-4-330-28612-9.
- JR電車編成表 2010夏 [JR EMU Formations - Summer 2010]. Japan: JRR. May 2010. ISBN 978-4-330-14310-1.
- JR Timetable, March 2010 issue
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