ER1 electric trainset (Cyrillic: ЭР1) was manufactured by Rīgas Vagonbūves Rūpnīca between 1957 and 1962 for suburban commuting usage within the Soviet Union on lines electrified on 3000 V, DC.

See also Stadler KISS - electric trainset, in Sweden called ER1 The Museum of the Moscow Railway, at Paveletsky Rail Terminal, Moscow Rizhsky Rail Terminal, Home of the Moscow Railway Museum Varshavsky Rail Terminal, St.Petersburg, Home of the Central Museum of Railway Transport, Russian Federation History of rail transport in Russia

External links Documentary of Soviet electric EMU trains of the ER-series (ER1 from 38:26-53:07)