| Tobu 70000 series | |
|---|---|
 70000 series set 71701 in April 2021 | |
 The interior of the 70000 series | |
| In service | 2017–present |
| Manufacturer | Kinki Sharyo |
| Built at | Higashiōsaka, Osaka |
| Replaced | 20000 series |
| Constructed | 2017–2020 |
| Entered service | 7 July 2017 |
| Number built |
|
| Formation | 7 cars per trainset Mc1-M1-M2-M3-M2'-M1'-Mc2 |
| Fleet numbers |
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| Operators | Tobu Railway |
| Depots | Kasukabe |
| Lines served |
|
| Specifications | |
| Car body construction | Aluminium alloy |
| Train length | 140.94 m (462 ft 5 in) |
| Car length | 20.47 m (67 ft 2 in) (Mc) 20 m (65 ft 7 in) (M) |
| Width | 2.78 m (9 ft 1 in) |
| Height | 3,972 mm (13 ft 0.4 in) |
| Doors | 4 pairs per side |
| Maximum speed | 110 km/h (68.4 mph) |
| Weight | 236.3 t (232.6 long tons; 260.5 short tons) |
| Traction system | Mitsubishi 2-level VVVF (Si-IGBT switching device) |
| Traction motors | Toshiba totally enclosed self-cooling PMSM |
| Power output | 2,870 kW (205 kW x 2 per car) |
| Acceleration | 0.92 m/s2 (2.1 mph/s) |
| Deceleration | 1 m/s2 (2.2 mph/s) (service) 1.3 m/s2 (2.9 mph/s) (emergency) |
| Electric system(s) | 1,500 V DC (nominal) from overhead catenary |
| Current collector(s) | Pantograph |
| Bogies | TRS-17M bolsterless |
| Safety system(s) | TSP-ATS, CS-ATC |
| Track gauge | 1,067 mm (3 ft 6 in) |
The Tobu 70000 series (東武70000系, Tōbu 70000-kei) is a Japanese DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway on Tobu Skytree Line and Tokyo Metro Hibiya Line inter-running services since 7 July 2017.