10 photos from Wikimedia Commons · credits & licences
- 1. Seibu-Series20000-20155F: MaedaAkihiko· CC BY-SA 4.0
- 2. Seibu-Series20000 20008: MaedaAkihiko· CC BY-SA 4.0
- 3. Seibu 20000 8: Tobu TJ· CC BY-SA 4.0
- 4. Seibu 20000 L: Tobu TJ· CC BY-SA 4.0
- 5. Seibu 20000 series 20055 Kōkū-kōen Station in 2015: 小野 優太· CC BY-SA 4.0
- 6. Seibu 20000 Series 20103F Express: 扇町クロシア· CC BY-SA 4.0
- 7. Seibu 20000 series 20151 2007-11-22-1: Tokoro ten· CC BY-SA 3.0
- 8. Seibu 20000 series 20151 2007-11-22-2: Tokoro ten· CC BY-SA 3.0
- 9. Seibu 20000 series 20151 2007-11-22-3: Tokoro ten· CC BY-SA 3.0
- 10. Seibu 20000 Series 20152 Youkai Watch: 正和· CC BY-SA 4.0
what is it?
The Seibu 20000 series (西武20000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. First introduced in 2000, a total of eight 10-car sets and eight 8-car sets were built between 1999 and 2005 by Hitachi for use on Seibu Ikebukuro Line and Seibu Shinjuku Line services.
who runs it
base stats
Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.
fun facts
- First built 26 years ago, in 2000.
- 20 m long: about 4 cars parked nose to tail.
- Still in service after 26 years.
multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.
spec sheet
- built
- 2000
- in service from
- 2000
- status
- in service
- number built
- 144
- kind
- multiple unit
- traction
- electric
- origin
- 🇯🇵 Japan
- builders
- Hitachi
- operators
- Seibu Railway
- top speed
- 105 km/h
- power
- —
- gauge
- 1,067 mm Cape gauge
- electric system
- 1,500 V DC
- formation
- 8/10 cars per trainset
- length
- 20 m
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q11628847, Wikipedia: Seibu 20000 series (CC BY-SA 4.0).Updated 2026-10-25.