The 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 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 , transferred to Tanimachi Line in 2006 and reclassified as 22-50 series
Formation Trains are formed as follows.
21 series Car No. 1 2 3 4 5 6 7 8 9 10 Designation Tec2 Ma2 Mb2 T T' Ma1' Tbp Mb1 Ma1 Tec1 Numbering 219xx 212xx 213xx 215xx 218xx 214xx 217xx 211xx 210xx 216xx Car 6 is designated as a women-only car (Weekday only).
22/23/24/OTS series Car No. 1 2 3 4 5 6 Designation Tec1 Mb1' T' Mb2 Ma2 Tec2 Numbering 2600 2100 2800 2300 2200 2900 22 series car 3 is designated as a women-only car (Rush hour only).
25 series Car No. 1 2 3 4 Designation Tec1 Mb1' Mb2 Tec2 Numbering 256xx 251xx 253xx 259xx
References