The reference for locomotives and railcars


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Yugoslav Railway series 412 (ЭР31/ER31)
Bulgarian State Railway series 33
Yugoslavia | 1980 | 53 produced
412 099 im September 2019 in Belgrad
412 099 im September 2019 in Belgrad
Srdan Popovic

From 1980, the Yugoslav Railways received a total of 53 four-car electric commuter multiple units. They came from Riga in the former Soviet Union and were called ЭР31 (ER31) by the manufacturer. Each train consisted of two control cars with traction motors on all axles and two non-powered trailers. In Yugoslavia, the control cars were designated as the series 412 and the trailers as the series 416. After the collapse of Yugoslavia they came to Serbia, Montenegro and North Macedonia. Six trains for the Bulgarian State Railways were only built after 1990.

ManufacturerRigaer Waggonbaufabrik
Axle configB-B+2-2+2-2+B-B 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length335 ft 2 1/16 in
Service weight485,016 lbs
Adhesive weight255,736 lbs
Axle load31,967 lbs
Power sourceelectric - AC
Electric system25,000 V 50 Hz
Continuous power1,824 hp (1,360 kW)
Top speed75 mph
Power Plant
Calculated Values
last changed: 05/2023

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