CAF Sm4

Built by Alstom, CAF, Fiat

Top speed

160 km/h

99 mph

Power output

1,200 kW

1,609 hp

Weight

114 t

251,327 lb

Track gauge

1,524 mm

Russian broad gauge

Years built

1998–2005

30 units

Axle arrangement

2'Bo'+Bo'2'

Overview of the CAF Sm4

Discover the Sm4 locomotive, a modern electric multiple unit designed to excel on Finnish railways.

Built by Alstom, CAF, and Fiat between 1998 and 2005, this electric multiple unit (EMU) offers a smooth and reliable travel experience.

With a top speed of 160 km/h and a capacity for 192 passengers, the Sm4 is perfect for commuter and long-distance transport.

Its technical features include a car length of 26.45 meters, a width of 3.24 meters, and a height of 4.4 meters, all supported by a powerful 25 kV AC 50 Hz electric system delivering 1200 kW of power.

Operating on a 1524 mm gauge, the Sm4 is an essential presence on the Finnish rail network, integrated into VR Group's fleet under the VR Sm4 designation.

Its 2'Bo'+Bo'2' wheel configuration ensures stability and optimal performance across various terrains.

CAF Sm4 technical specifications

	Value	Imperial / US
Family	Coradia
Built by	Alstom, CAF, Fiat · 1998–200530 units
Top speed	160 km/h99 mph	99 mph
Power output	1,200 kW1,609 hp	1,609 hp
Electric systems	25 kV AC 50 Hz
Track gauge	1,524 mmRussian broad gauge5 ft 0 in	5 ft 0 in
UIC axle arrangement	2'Bo'+Bo'2'
Formation	2 cars (2M)
Capacity	192 seats
Car length	26.45 m86 ft 9 in	86 ft 9 in
Width	3.24 m10 ft 8 in	10 ft 8 in
Height	4.4 m14 ft 5 in	14 ft 5 in
Weight	114 t251,327 lb	251,327 lb