ER9M was being produced in Riga’s Wagon Factory (RVR) in Latvia from 1975 till 1981.
A train is compatible with 25kV AC 50 Hz catenary voltage. There are 107 seats in trailing or the motorized carriage and 83 in the rear car.
Engine power: 800 kW;
Operational speed: 130 mph;
Passenger seats: 190.