The was a rapid transit electric multiple unit operated by the Transportation Bureau City of Nagoya on the Nagoya Subway Tsurumai Line in Japan between 1977 and 2023.
Originally delivered as 4-car sets, the trainsets were reformed into 6-car sets from 1993 as shown below with former cab cars inserted within the formations. Two surplus 3000 series cars were inserted into a later 3050 series set.