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Locomotive-Specs
SLM Ae 4/4 – photo 1© trainspo.com
Electric locomotive

SLM Ae 4/4

Built by SLM, BBC

Top speed
125 km/h
78 mph
Power output
2,940 kW
3,943 hp
Weight
80 t
176,370 lb
Length
15.6 m
51 ft 2 in
Track gauge
1,435 mm
Standard gauge
Years built
1944–1955
8 units

Overview of the SLM Ae 4/4

Discover the robust Swiss electric locomotive, the Ae 4/4, a true workhorse of the BLS AG.

Built by SLM and BBC between 1944 and 1955, these locomotives, specifically the BLS Ae 415 class, were designed for demanding Swiss railway lines.

With a top speed of 125 km/h and a powerful 2940 kW output, the Ae 4/4 offers impressive tractive effort of 216 kN.

Its Bo'Bo' wheel arrangement and 1435 mm standard gauge make it a versatile and reliable electric locomotive.

Explore the enduring legacy of this iconic Swiss electric loco.

SLM Ae 4/4 technical specifications

Value
Built bySLM, BBC · 1944–19558 units
Top speed125 km/h78 mph
Power output2,940 kW3,943 hp
Tractive effort216 kN48,559 lbf
Electric systems
  • 15 kV AC 16.7 Hz
Track gauge1,435 mmStandard gauge4 ft 8½ in
UIC axle arrangementBo'Bo'
Length15.6 m51 ft 2 in
Weight80 t176,370 lb

Operators of the SLM Ae 4/4

Railway companies that have operated the Ae 4/4, with the class designation used by each of them.

OperatorClassCountry
BLS AGBLS Ae 415Switzerland

SLM Ae 4/4 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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