The was a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan between 1961 and 1993.
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
History Ten four-car sets were introduced from 1961 on inter-running services between the Tobu Isesaki Line and Tokyo Metro Hibiya Line. 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. The fleet was increased to eight cars per set from May 1972.
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 These two sets were withdrawn in 1992.
The last remaining 2000 series sets were withdrawn in 1993.
None of the Tobu 2000 Series cars were preserved.
Formations 2000 series The eight-car sets (2101 to 2120) were formed as follows. 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.
2080 series The two six-car 2080 series sets (2181 and 2182) were formed as follows.
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.
Conversion and renumbering details The former identities of the 2080 series cars were as shown below.
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
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