#5870· Seibu 40000
Seibu 40000 series
🇯🇵 Japan ·built by Kawasaki Railcar Manufacturing· from 2017· electric multiple unit of Seibu Railway
10 photos from Wikimedia Commons · credits & licences
- 1. Seibu-Series40000 40001: MaedaAkihiko· CC BY-SA 4.0
- 2. Seibu-Series40000 40104 Haijima-Liner-4: MaedaAkihiko· CC BY-SA 4.0
- 3. Seibu Railway 40000 Series 40102F set: T. Hanami· CC0
- 4. Haijima Liner 40000 series: Toshinori baba· CC BY-SA 4.0
- 5. Seibu 40000 40002f shironekotrain: 天子は俺の嫁· CC BY-SA 4.0
- 6. Seibu 40000 Series 40155F set: T. Hanami· CC0
- 7. Seibu 40000 series 40156F SAISON 20260627-IMG 1228: SEMISAYAMASHI· CC BY-SA 4.0
- 8. Seibu 40000 series 48153F 20260701-IMG 0494: SEMISAYAMASHI· CC BY-SA 4.0
- 9. Seibu 40000 series compressor unit MBU1600Y-3B M40357 20260701-IMG 0192: SEMISAYAMASHI· CC BY-SA 4.0
- 10. Seibu 40000 series Emergency ladder T40402 20170504-DSCN5429: SEMISAYAMASHI· CC BY-SA 4.0
what is it?
The Seibu 40000 series (西武40000系) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Seibu Railway in Japan since March 2017. As of March 2025, a total of 20 ten-car trainsets and 3 eight-car trainsets have been built by Kawasaki Heavy Industries in Kobe from 2016, with the first trains entering service on 25 March 2017.
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 9 years ago, in 2017.
- 3.8 MW is about 45 family cars (~85 kW each) flat out.
- 20.3 m long: about 5 cars parked nose to tail.
multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.
spec sheet
- built
- 2017
- in service from
- 2017
- status
- in service
- number built
- 224
- kind
- multiple unit
- traction
- electric
- origin
- 🇯🇵 Japan
- builders
- Kawasaki Railcar Manufacturing, Kawasaki Heavy Industries
- operators
- Seibu Railway
- top speed
- 120 km/h
- power
- 3.8 MW
- gauge
- 1,067 mm Cape gauge
- electric system
- Overhead catenary
- formation
- 8/10 cars per trainset
- length
- 20.3 m
- Dutch name
- Seibu 40000
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q20870991, Wikipedia: Seibu 40000 series (CC BY-SA 4.0).Updated 2026-10-25.