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#5159

VR Class Sm4

🇫🇮 Finland ·built by Construcciones y Auxiliar de Ferrocarriles· from 1999· electric multiple unit

VR Class Sm4, photo 1 of 10
1/10 Taavi Väänänen· CC BY-SA 4.0

what is it?

The Sm4 electric multiple unit (EMU) is a low-floor train used by the VR Group for its VR commuter rail services. The initial order was for ten EMUs with the first unit entering service in 1999. Another 20 units were ordered in 2002 and the deliveries were completed in 2005.

who runs it

base stats

  • speed 160 km/htop speed
  • power 1.2 MWpower output
  • weight 114 tin working order
  • seats 100passengers
  • built 30made in total

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

  • First built 27 years ago, in 1999.
  • Top speed is 1.2× a car on the Dutch motorway (130 km/h).
  • At full speed it would cover Amsterdam–Utrecht (≈ 40 km) in 15 minutes.
  • 1.2 MW is about 14 family cars (~85 kW each) flat out.
  • Weighs about as much as 19 African elephants (~6 t each).
  • 26.5 m long: about 6 cars parked nose to tail.
  • Seats 100: 2 full city buses (~50 seats each).

multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.

spec sheet

built
1999
in service from
1999
number built
30
kind
Electric Multiple Unit
traction
electric
origin
🇫🇮 Finland
builders
Construcciones y Auxiliar de Ferrocarriles, Fiat Ferroviaria, Alstom, Alstom Transport
operators
VR Group
top speed
160 km/h
power
1.2 MW
gauge
1,524 mm Russian broad gauge
electric system
catenary
wheel arrangement
B′2′+2′B′
formation
2 cars
length
26.5 m
weight
114 t
capacity
100 passengers

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q898532, Wikipedia: VR Class Sm4 (CC BY-SA 4.0).Updated 2026-10-25.

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