© trainspo.comVagonmash 81-502 / Ema-502
Built by Vagonmash
Overview of the Vagonmash 81-502 / Ema-502
Discover the 81-502 / Ema-502, an Electric Multiple Unit (EMU) with a rich history serving the Saint Petersburg Metro in Russia.
Built by Vagonmash between 1973 and 1980, this robust locomotive boasts a top speed of 90 km/h and operates on a 1520 mm gauge.
Measuring 19.21 meters in car length, 2.7 meters in width, and 3.69 meters in height, the 81-502 / Ema-502 is powered by a 750 V DC electric system utilizing a third rail.
Its enduring design and reliable performance have made it a staple in metropolitan rail transport.
Vagonmash 81-502 / Ema-502 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | Vagonmash · 1973–1980 | |
| Top speed | 90 km/h56 mph | |
| Electric systems |
| |
| Track gauge | 1,520 mmRussian broad gauge4 ft 11⅞ in | |
| Car length | 19.21 m63 ft 0 in | |
| Width | 2.7 m8 ft 10 in | |
| Height | 3.69 m12 ft 1 in |
Operators of the Vagonmash 81-502 / Ema-502
Railway companies that have operated the 81-502 / Ema-502, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Saint Petersburg Metro | PM 81-502 | Russia |
Vagonmash 81-502 / Ema-502 photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.
More electric multiple units from Vagonmash

Vagonmash
81-540.2
Electric multiple unit
90 km/h

Vagonmash
Ezh-3 / 81-710
Electric multiple unit
1973–1979 · 90 km/h

Vagonmash
Ema-502
Electric multiple unit
1971–1980 · 90 km/h

Vagonmash
Ema
Electric multiple unit
1966–1970 · 90 km/h

Vagonmash
81-717.5
Electric multiple unit
1987–2006

Vagonmash
81-540.5
Electric multiple unit
2005 · 90 km/h

Vagonmash
81-556
Electric multiple unit
2008 · 90 km/h

Vagonmash
81-717.5M
Electric multiple unit
1993–2012
Similar electric multiple units from other manufacturers

Jeumont-Schneider
SNCF Z 4100
Electric multiple unit
90 km/h · 560 kW

Metrovagonmash
81-740.1
Electric multiple unit
90 km/h · 3,400 kW

Metrovagonmash
81-740.4
Electric multiple unit
90 km/h · 3,400 kW

SGP
WL Type U
Electric multiple unit
1972

Metrovagonmash
81-717
Electric multiple unit
1976–1988 · 90 km/h

ABB
IM LRV
Electric multiple unit
80 km/h

Alstom
MP 89 CA
Electric multiple unit
80 km/h

Hyundai Rotem
AM Hyundai Rotem
Electric multiple unit
80 km/h