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ER1
Electric multiple train unit ER1-234 of Crimean railways
Manufacturer	Rīgas Vagonbūves Rūpnīca
Constructed	1957-1962
Number built	259 + 4 separate head carriages
Formation	10 cars
Capacity	1050 seats
Specifications
Car body construction	steel
Car length	19.600 m (64 ft 3+5⁄8 in)
Width	3,480 mm (11 ft 5 in)
Acceleration	0.6 m/s2 (2.0 ft/s2)
Deceleration	0.8 m/s2 (2.6 ft/s2)
Electric system(s)	3 kV DC Catenary
Current collector(s)	Pantograph
Coupling system	SA3
Track gauge	1,520 mm (4 ft 11+27⁄32 in) Russian gauge

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

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