Seibu L00 series
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| Seibu L00 series | |
|---|---|
 L00 series set in March 2026 | |
| In service | 2026–present |
| Manufacturer | Mitsubishi Heavy Industries |
| Built at | Mihara, Hiroshima[1] |
| Family name | Leo Liner |
| Replaced | 8500 series |
| Constructed | 2025–present[1] |
| Entered service | 27 March 2026 |
| Number under construction | 8 vehicles (2 sets) |
| Number built | 4 vehicles (1 set) |
| Formation | 4 cars per trainset |
| Capacity | 144 (56 seated) per set[1] |
| Operator |  Seibu Railway |
| Line served |  Yamaguchi Line |
| Specifications | |
| Car body construction | Aluminum alloy |
| Train length | 34,000 mm (111 ft 7 in) |
| Car length | 8,500 mm (27 ft 11 in) |
| Width | 2,420 mm (7 ft 11 in) |
| Height | 3,340 mm (10 ft 11 in) |
| Doors | 1 per side |
| Maximum speed | 60 km/h (37 mph) (design) |
| Traction system | 2-level VVVF |
| Traction motors | Three-phase induction motor |
| Acceleration | 3.5 km/(h⋅s) (2.2 mph/s) |
| Deceleration |
|
| Electric systems | 750 V DC (Third rail) |
| Notes/references | |
| Specifications:[2] | |
The Seibu L00 series (西武L00系, Seibu Reo-kei)[3] is a people mover train type operated by the private railway operator Seibu Railway on Yamaguchi Line services since 2026. Three four-car sets are to be built by Mitsubishi Heavy Industries by fiscal 2027 to replace the ageing 8500 series fleet.[4]
The first set features a livery that is based on the Saitama Seibu Lions.[1] The second set is expected to receive a navy blue livery with decorations inspired by the fireworks and illuminations at the Seibu-en amusement park.[4]
Interior
Passenger accommodation consists of mostly longitudinal seating throughout with a bench seat for one child and one adult faces at the front end of each lead car. All cars have an accessible "free space". The intermediate cars feature showcase displays. LCD displays are installed above the doorways.[2]
