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| Keio 8000 series | |
|---|---|
 10-car set 8712 in November 2021 | |
| In service | 1992 – Present |
| Manufacturer | Nippon Sharyo, Tokyu Car Corporation |
| Replaced | 5000 series |
| Constructed | 1992 – 1999, 2009 |
| Entered service | 11 May 1992 |
| Refurbished |
|
| Number built | 245 cars (41 sets + 1 car) |
| Number in service | 244 cars (27 sets) |
| Number scrapped | 1 car (8728(I), accident damage) |
| Formation |
|
| Fleet numbers |
|
| Capacity | 143 (end cars) 154/155 (intermediate cars) |
| Operators | Keio Corporation |
| Depots | Wakabadai, Takahatafudō |
| Lines served | KO Keio Line |
| Specifications | |
| Car body construction | Ivory painted steel (cab ends) Stainless steel (body) |
| Car length |
|
| Width |
|
| Height | 4,055 mm (13 ft 3.6 in) (car without pantograph) 4,100 mm (13 ft 5 in) (car with pantograph) |
| Entry | Level |
| Doors | 4 pairs of sliding doors per side |
| Wheel diameter | 860 mm (34 in)[1] |
| Wheelbase | 2,200 mm (87 in) (motored bogie) 2,100 mm (83 in) (trailer bogie)[1] |
| Maximum speed |
|
| Weight |
|
| Traction system | GTO-VVVF |
| Power output | 150 kW (200 hp) per motor |
| Acceleration | 3.3 km/(h⋅s) (2.1 mph/s) (after high acceleration modification) 2.5 km/(h⋅s) (1.6 mph/s) (as built) |
| Deceleration | 3.5 km/(h⋅s) (2.2 mph/s) (full-service braking) 4.0 km/(h⋅s) (2.5 mph/s) (emergency braking) |
| Electric system(s) | 1,500 V DC overhead catenary |
| Current collector(s) | Pantograph |
| Bogies | |
| Braking system(s) | Electronically controlled pneumatic brakes with regenerative braking |
| Safety system(s) | Keio ATC |
| Coupling system | Shibata |
| Headlight type | Sealed beam |
| Seating | Longitudinal |
| Track gauge | 1,372 mm (4 ft 6 in) |
The Keio 8000 series (京王8000系) is an electric multiple unit (EMU) train type operated by the private railway operator Keio Corporation on commuter services in the Tokyo area of Japan since 1992.
