Seibu 6000 series

Seibu 6000 series
Refurbished stainless steel set 6114 in October 2021
In service1 June 1992  present
ManufacturerTokyu Car Corporation, Hitachi
Constructed1992–1998
Refurbished2006–2010
Number built250 vehicles (25 sets)
Number in service250 vehicles (25 sets)
Formation10 cars per trainset
Fleet numbers
  • 6101–6117,
  • 6151–6158
Operators Seibu
DepotsKotesashi, Tamagawajosui
Lines served
Specifications
Car body constructionStainless steel (6101 to 6117); Aluminium (6151 to 6158)
Car length20,000 mm (65 ft 7 in)
Width2,800 mm (9 ft 2 in)
Doors4 pairs per side
Maximum speed
  • 105 km/h (65 mph) (on Seibu Line)
  • 110 km/h (68 mph) (on Tokyu line)
  • 80 km/h (50 mph) (on Tokyo Metro lines)
Traction systemVariable frequency (GTO/SiC/IGBT)
Power output155 kW per motor (GTO)
170 kW per motor (SiC)
190kW per motor (6157)
Acceleration3.3 km/(h⋅s) (2.1 mph/s) (on Tokyo Metro lines)
Electric system(s)1,500 V DC (overhead catenary)
Current collector(s)Pantograph
BogiesBolsterless
Braking system(s)Electronically controlled pneumatic brakes with regenerative braking
Safety system(s)New CS-ATC (beside 6101 and 6102), ATS (all sets)
Track gauge1,067 mm (3 ft 6 in)

The Seibu 6000 series (西武6000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. Twenty-five 10-car sets were manufactured by Tokyu Car Corporation and Hitachi between 1992 and 1998.

Featuring several advances in design, accessibility, and technology over older Seibu Railway sets, the 6000 series was developed for use on through services to the TRTA (now Tokyo Metro) Yurakucho Line and to serve as the basis for future Seibu train types. The type first entered service on 1 June 1992 on the Seibu Ikebukuro Line and has since been introduced onto other lines, including the Seibu Yurakucho and Shinjuku lines, the Tokyo Metro Fukutoshin Line, and the Tokyu Toyoko Line.