The is an electric multiple unit (EMU) type operated by the private railway operator Nagoya Railroad (Meitetsu) in Japan since 1991.
The type consists of nine two-car 1800 series sets introduced in 1991, and three two-car 1850 series sets introduced in 1992, built using the underframes and electrical equipment from withdrawn 7500 series "Panorama Car" EMUs.
The 1800 series was introduced in 1991 as two-car commuter-style sets to be coupled to six-car 1000/1200 series sets on limited express services during the busy peak hours. Sets are also used on their own or in pairs on other services.
, the fleet consists of nine two-car 1800 series sets (1801 to 1809) and two two-car 1850 series sets (1851 to 1852), formed as follows.
The Mc cars have one lozenge-type pantograph.
The Mc2 cars have one lozenge-type pantograph.
The 1800 and 1850 series cars have transverse seating with flip-over seat backs to face the direction of travel.
The 1800 series trains were first introduced in 1991, to augment the 1000/1200 series trainsets. In 1992, three more two-car sets were built, reusing the underframes and electrical equipment from withdrawn 7500 series "Panorama Car" EMU cars.
From 2017, the fleet underwent a programme of refurbishment. The first 1800 series set to be refurbished and reliveried was 1808 in May 2017.