Tobu 20000 series
| Tobu 20000/20050/20070/20400 series | |
|---|---|
20000 series set 21805 in April 2008 | |
| Manufacturer | Alna Kōki, Tokyu Car Corporation |
| Built at | Amagasaki, Yokohama |
| Replaced |
|
| Constructed | 1988–1997 |
| Entered service | 25 March 1988 |
| Refurbished | 2018– |
| Scrapped | 2017– |
| Number built | 192 vehicles (24 sets) |
| Number in service | 192 vehicles (24 sets) (as of 1 April 2017) |
| Formation | 4/8 cars per trainset |
| Operators | Tobu Railway |
| Depots | Kasukabe |
| Lines served | |
| Specifications | |
| Car body construction | Stainless steel |
| Car length | 18,000 mm (59 ft 1 in) |
| Width | 2,857 mm (9 ft 4.5 in) |
| Doors | 3/5 pairs per side |
| Maximum speed | 100 km/h (62 mph) 110 km/h (68 mph) (20400 series) |
| Traction system | Chopper control (20000 series) Variable frequency (GTO) (20050, 20070 & 20400 series) |
| Traction motors | TM-83 (Chopper) TM-92 (GTO-VVVF) |
| Acceleration | 3.3 km/(h⋅s) (2.1 mph/s) |
| Deceleration | 3.7 km/(h⋅s) (2.3 mph/s) (service) 4.5 km/(h⋅s) (2.8 mph/s) (emergency) |
| Electric system(s) | 1,500 V DC overhead line |
| Current collector(s) | 20000 series: scissors type pantograph 20070 series: single-arm pantograph 20400 series: single-arm pantograph |
| Safety system(s) | Tobu ATS |
| Track gauge | 1,067 mm (3 ft 6 in) |
The Tobu 20000 series (東武20000系, Tōbu 20000-kei) is a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan since 1988.
The 20000 series fleet is scheduled to be replaced by new Tobu 70000 series EMUs with 20 m cars.