Tobu 2000 series

The Tobu 2000 series (東武2000系, Tōbu 2000-kei) was a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan between 1961 and 1993.

Tobu 2000 series
2000 series set 2109 on the Isesaki Line in 1988
In service	1961–1993
Number built	160 vehicles (20 sets)
Number scrapped	160 vehicles
Formation	4/6/8 cars per trainset
Fleet numbers	2101-2120, 2181-2182
Operator(s)	Tobu Railway
Depot(s)	Kasukabe
Line(s) served	Tobu Isesaki Line, Tokyo Metro Hibiya Line, Tobu Noda Line
Specifications
Car body construction	Steel
Car length	18,000 mm (59 ft 1 in)
Width	2,800 mm (9 ft 2 in)
Height	3,995 mm (13 ft 1.3 in)
Doors	Sliding, 3 pairs per side
Power output	75 kW x 4 per car
Electric system(s)	1,500 V DC, overhead catenary
Track gauge	1,067 mm (3 ft 6 in)

Originally built for use on inter-running services between the Tobu Isesaki Line and Tokyo Metro Hibiya Line, two sets were later rebuilt for use on the Tobu Noda Line.

Variants

• 2000 series: 4-car, 6-car, and ultimately 8-car sets used on Tobu Isesaki Line and Tokyo Metro Hibiya Line inter-running services
• 2080 series: Two 6-car sets rebuilt from 2000 series cars in 1988 for use on the Tobu Noda Line

• 
  Noda Line 2080 series set 2181 in 1992

History

Ten four-car sets were introduced from 1961 on inter-running services between the Tobu Isesaki Line and Tokyo Metro Hibiya Line. [1] These were lengthened to six cars per set in 1964 to cope with increased ridership, and ten more six-car sets were delivered between May 1966 and September 1970.[1] The fleet was increased to eight cars per set from May 1972.[1]

Two six-car sets were rebuilt from 2000 series cars in 1988 with new cab fronts for use on the Tobu Noda Line, and reclassified 2080 series. These two sets were withdrawn in 1992.[2]

The last remaining 2000 series sets were withdrawn in 1993.[2]

None of the Tobu 2000 Series cars were preserved.

Formations

2000 series

The eight-car sets (2101 to 2120) were formed as follows.[1]

Designation	Mc	M'	M	M'	M	M'	M	M'c
Numbering	21xx	22xx	23xx	22xx	25xx	26xx	23xx	24xx

The "M" and "Mc" cars were each fitted with one lozenge-type pantograph.[1]

2080 series

The two six-car 2080 series sets (2181 and 2182) were formed as follows.[3]

Designation	Mc	M	T	T	M	Mc
Numbering	218x	228x	238x	248x	258x	268x

The 2180 and 2580 cars each had one lozenge-type pantograph.[3]

Conversion and renumbering details

The former identities of the 2080 series cars were as shown below.[3]

Set No.	Car No.	Original number
2181	KuMoHa 2181	MoHa 2560
	MoHa 2281	MoHa 2663
	SaHa 2381	MoHa 2556
	SaHa 2481	MoHa 2656
	MoHa 2581	MoHa 2563
	KuMoHa 2681	MoHa 2660
2182	KuMoHa 2182	MoHa 2552
	MoHa 2282	MoHa 2651
	SaHa 2382	MoHa 2558
	SaHa 2482	MoHa 2658
	MoHa 2582	MoHa 2551
	KuMoHa 2682	MoHa 2652

References

1. Iijima, Iwao (July 2002). 東武鉄道 私鉄の車両２４　東武鉄道 [Private Railway Trains 24: Tobu Railway]. Tokyo, Japan: Neko Publishing Co., Ltd. pp. 56–57, 160–161. ISBN 978-4-87366-307-4.
2. 東武鉄道車両カタログ２００６（通勤車篇） [Tobu Rolling Stock Catalogue 2006 (Commuter Stock)]. Tetsudō Daiya Jōhō Magazine. Vol. 35 no. 263. Japan: Kotsu Shimbun. March 2006. p. 6.
3. Kubo, Toshi (July 2017). 東京メトロ日比谷線-4 [Tokyo Metro Hibiya Line - 4]. Japan Railfan Magazine (in Japanese). Vol. 57 no. 675. Japan: Koyusha Co., Ltd. p. 121.