Seibu 2000 series

The Seibu 2000 series (西武2000系) is an electric multiple unit (EMU) train type operated by the private railway operator Seibu Railway on commuter services in the Tokyo area of Japan since 1977.[1]

Seibu 2000 series
A later-batch type 2000 series EMU on the Seibu Shinjuku Line in June 2012
Manufacturer	Seibu Tokorozawa Railway Works, Tokyu Car Corporation
Constructed	1977-1992
Entered service	1977
Number built	444 vehicles
Number in service	406 vehicles (as of 1 April 2016)
Number preserved	1 vehicle (cab end)
Formation	2/4/6/8 cars per trainset
Operator(s)	Seibu Railway
Depot(s)	Kotesashi, Musashigaoka, Minami-Iriso, Tamagawa-Josui
Line(s) served	Seibu Ikebukuro Line, Seibu Shinjuku Line
Specifications
Car body construction	Steel
Car length	20 m (65 ft 7 in)
Doors	4 pairs per side
Maximum speed	105 km/h (65 mph)
Traction system	Chopper control Variable frequency (GTO)
Electric system(s)	1,500 V DC
Current collection method	overhead catenary
Track gauge	1,067 mm (3 ft 6 in)

Design

The 2000 series trains were introduced on all-station stopping services on the Seibu Shinjuku Line in 1977, featuring four pairs of sliding doors on each side to speed up boarding and alighting at stations.[1] 130 vehicles were built between 1977 and 1988, including some replacements for cars damaged in accidents, and this first batch was followed by a batch of 304 vehicles classified "New 2000 series" built between 1988 and 1992.[1]

• 
  A first-batch type 2000 series set in May 2015
• 
  8-car "New 2000 series" set 2095 on the Seibu Shinjuku Line in March 2016

Fleet

As of 1 April 2016, the fleet consists of 406 vehicles formed as two-car, four-car, six-car, and eight-car sets, and based at Kotesashi, Musashigaoka, Minami-Iriso, Tamagawa-Josui depots for use on Seibu Shinjuku Line and Seibu Ikebukuro Line workings.[2]

Formations

Sets are formed as two-car, four-car, six-car, and eight-car sets, as shown below.[2]

Two-car sets

Designation	Mc	Tc
Numbering	24xx	24xx

The "Mc" cars each have two pantographs.[2]

Four-car sets

Designation	Mc	M2	M3	Tc2
Numbering	25xx	25xx	26xx	26xx

The "M3" cars each have two lozenge-type pantographs.[2]

Six-car sets

Designation	Tc1	M1	M2	M5	M6	Tc2
Numbering	20xx	21xx	21xx	22xx	22xx	20xx

The "M1" and "M5" cars each have two single-arm pantographs.[2]

Eight-car sets

Designation	Tc1	M1	M2	M3	M4	M5	M6	Tc2
Numbering	20xx	21xx	21xx	22xx	22xx	23xx	23xx	20xx

The "M3", "M3", and "M5" cars each have one pantograph.[2]

Interior

Seating consists of longitudinal bench seating throughout. Priority seats are provided at the end of each car.[2]

History

The first trains entered service in 1977 on the Seibu Shinjuku Line, initially formed as six-car sets.[1]

Preserved examples

The cab end of car 2098 preserved inside the Maruzen bookshop in Tokyo, in August 2017. The cab next to it is a former Keikyu 800 series.

The cab end of former car KuHa 2098 is preserved inside the Maruzen Ikebukuro bookshop in Toshima, Tokyo. Built in June 1992 at Seibu Railway's Tokorozawa factory, it was withdrawn in September 2016, and moved to the ground floor of the Maruzen Ikebukuro bookshop building in March 2017, while still under construction.[3]

References

1. 私鉄車両年鑑2015 [Japan Private Railways Annual 2015] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 June 2015. p. 169. ISBN 978-4-8022-0003-5.
2. 私鉄車両編成表 2016 [Private Railway Rolling Stock Formations - 2016] (in Japanese). Japan: Kotsu Shimbunsha. 25 July 2016. pp. 48–52. ISBN 978-4-330-70116-5.
3. Goto, Fumio (October 2017). 東京・池袋　ビルに入った3台の電車 [The three trains inside a building in Ikebukuro, Tokyo]. Japan Railfan Magazine (in Japanese). Vol. 57 no. 678. Japan: Koyusha Co., Ltd. pp. 78–81.

External links

• Seibu 2000 series train information (in Japanese)