SLM SBB Tm I

Built by Raco, SLM

Top speed

70 km/h

43 mph

Power output

66 kW

89 hp

Length

5.19 m

17 ft 0 in

Track gauge

1,435 mm

Standard gauge

Years built

1960–1965

49 units

Overview of the SLM SBB Tm I

Discover the SBB Tm I, a versatile diesel locomotive built by Raco and SLM between 1960 and 1965, with 49 units produced.

Ideal for shunting and light hauling tasks on the Swiss Federal Railways (SBB), this compact locomotive boasts a top speed of 70 km/h and a power output of 66 kW.

Measuring 5.19 meters in length with a standard gauge of 1435 mm, the SBB Tm I (Series Tm 230) is designed for maneuverability and efficiency.

With a tractive effort of 45 kN, these locomotives have been a reliable part of Swiss railway operations for decades.

Explore the history and capabilities of the SBB Tm I, a testament to Swiss engineering in the realm of diesel traction.

SLM SBB Tm I technical specifications

	Value	Imperial / US
Series	Tm 230
Built by	Raco, SLM · 1960–196549 units
Top speed	70 km/h43 mph	43 mph
Power output	66 kW89 hp	89 hp
Tractive effort	45 kN10,116 lbf	10,116 lbf
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
Length	5.19 m17 ft 0 in	17 ft 0 in