| Seibu 40000 series | |
|---|---|
 40000 series set 40101 in October 2021 | |
| In service | 2017–present |
| Manufacturer | Kawasaki Heavy Industries, Kawasaki Railcar Manufacturing Co. |
| Built at | Kobe, Hyōgo |
| Family name | efACE |
| Replaced | 2000 series |
| Constructed | 2016– |
| Entered service | 25 March 2017 |
| Number under construction | 20 vehicles (2 sets) |
| Number built | 140 vehicles (14 sets) |
| Number in service | 130 vehicles (13 sets) |
| Formation | 10 cars per trainset |
| Fleet numbers | 40101–40106, 40151–40157 |
| Operators | Seibu Railway |
| Lines served | |
| Specifications | |
| Car body construction | Aluminium alloy |
| Car length |
|
| Width | 2,848 mm (9 ft 4.1 in) |
| Height | 4,050 mm (13 ft 3 in) |
| Doors | 4 pairs per side |
| Maximum speed | 120 km/h (74.6 mph) |
| Traction system | Toshiba 2-level IGBT–VVVF |
| Traction motors | 20 × 190 kW (255 hp) permanent-magnet synchronous motor[1] |
| Power output | 3.8 MW (5,096 hp) |
| Acceleration | 0.92 m/s2 (2.1 mph/s) |
| Deceleration | 0.97 m/s2 (2.2 mph/s) (service) 1.3 m/s2 (2.9 mph/s) (emergency) |
| Electric system(s) | 1,500 V DC Overhead catenary |
| Current collector(s) | Pantograph |
| UIC classification | 2'2' + Bo'Bo' + Bo'Bo' + 2'2' + Bo'Bo' + 2'2' + 2'2' + Bo'Bo' + Bo'Bo' + 2'2' |
| Bogies | SS185 |
| Track gauge | 1,067 mm (3 ft 6 in) |
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.[1] As of 21 November 2021,[update] a total of 13 ten-car trainsets have been built by Kawasaki Heavy Industries in Kobe from 2016, with the first trains entering service on 25 March 2017.[2]
- ^ a b 西武鉄道、新型通勤車両「40000系」を導入へ 初の「パートナーゾーン」も設置 [Seibu Railway to introduce new 40000 series commuter trains - Will include "partner zone" for first time] (in Japanese). Japan: Tetsudo Shimbun. 24 August 2015. Archived from the original on 4 March 2016. Retrieved 12 September 2016.
- ^ Cite error: The named reference
railfan673was invoked but never defined (see the help page).