Osaka Municipal Subway 20 series
| Osaka Municipal Subway 20 series | |
|---|---|
A 20 series trainset on the Kintetsu Keihanna Line in December 2023  | |
| In service | 1984–March 2024 | 
| Manufacturer | Hitachi, Kawasaki Heavy Industries, Kinki Sharyo, Tokyu Car Corporation | 
| Constructed | 1984–1989 | 
| Entered service | 24 December 1984 | 
| Number built | 96 vehicles (16 sets) | 
| Number in service | None | 
| Formation | 6 cars per trainset | 
| Fleet numbers | 2601–2607, 2631–2639 | 
| Operators | Osaka Municipal Transportation Bureau (1984–2018) Osaka Metro (2018–2024)  | 
| Depots | Dainichi, Midorigi, Morinomiya, Yao | 
| Lines served | 
  | 
| Specifications | |
| Car body construction | Aluminium alloy | 
| Doors | 4 pairs per side | 
| Maximum speed | 95 km/h (59 mph) | 
| Traction system | GTO–VVVF (as built) IGBT–VVVF (after refurbishment)  | 
| Electric system(s) | 750 V DC | 
| Current collector(s) | Third rail contact shoes | 
| Safety system(s) | WS-ATC | 
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) | 
The Osaka Municipal Subway 20 series (大阪市交通局20系) was a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway (now Osaka Metro) in Japan between 1984 and 2024.