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Locomotive-Specs
SLM Ae 6/6 – photo 1© trainspo.com
Electric locomotive

SLM Ae 6/6

Built by SLM, BBC, MFO

Top speed
125 km/h
78 mph
Power output
4,300 kW
5,766 hp
Weight
120 t
264,554 lb
Length
18.4 m
60 ft 4 in
Track gauge
1,435 mm
Standard gauge
Years built
1955–1966
120 units

Overview of the SLM Ae 6/6

Discover the Ae 6/6 electric locomotive, an icon of Swiss railway engineering.

Produced between 1955 and 1966, this powerful machine served the Swiss Federal Railways (SBB) and SBB Cargo.

With 4300 kW of power and a top speed of 125 km/h, the Ae 6/6 was built to conquer the steepest gradients. Its distinctive design and robustness made it a legendary figure on the rail network.

Classified as Co'Co' by UIC and weighing around 120 tons, it operates on 15 kV AC 16.7 Hz electric systems, perfectly adapted to Swiss networks.

Whether in freight service with SBB Cargo or historical operations with SBB Historic, the Ae 6/6 continues to inspire train enthusiasts.

SLM Ae 6/6 technical specifications

Value
SeriesAe 6/6
Built bySLM, BBC, MFO · 1955–1966120 units
Top speed125 km/h78 mph
Power output4,300 kW5,766 hp
Tractive effort221 kN49,683 lbf
Electric systems
  • 15 kV AC 16.7 Hz
Track gauge1,435 mmStandard gauge4 ft 8½ in
UIC axle arrangementCo'Co'
Length18.4 m60 ft 4 in
Width2.97 m9 ft 9 in
Height4.5 m14 ft 9 in
Weight120 t264,554 lb

Operators of the SLM Ae 6/6

Railway companies that have operated the Ae 6/6, with the class designation used by each of them.

OperatorClassCountry
SBB CargoSBB Cargo Ae 6/6Switzerland
SBB CargoSBB Cargo Ae 610Switzerland
SBB HistoricSBB Historic Ae 6/6Switzerland
Swiss Federal RailwaysSBB Ae 6/6Switzerland

SLM Ae 6/6 photos

Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.

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