Osaka Municipal Subway New 20 series

The Osaka Municipal Subway New 20 series (大阪市交通局新20系) is a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway in Japan since 1990.

Variants
The New 20 series was developed from the earlier 20 series (ja:大阪市交通局20系電車) trains introduced on the Chūō Line from 1984.


 * 21 series: 10-car sets used on the Midōsuji Line and the Kita-Osaka Kyuko Railway Namboku Line
 * 22 series: 6-car sets used on the Tanimachi Line
 * 23 series: 6-car sets used on the Yotsubashi Line
 * 24 series: 6-car sets used on the Chūō Line and the Kintetsu Keihanna Line
 * 25 series: 4-car sets used on the Sennichimae Line
 * OTS series (OTS系): 6-car sets introduced in 1997 on the opening of the Cosmosquare to Osakakō segment of the Chūō Line and owned by 阪港トランスポートシステム, transferred to Tanimachi Line in 2006 and reclassified as 22-50 series

Formation
Trains are formed as follows.

21 series
Car 6 is designated as a women-only car (Weekday only).

22/23/24/OTS series
22 series car 3 is designated as a women-only car (Rush hour only).