SLM Re 4/4
Built by SLM, BBC
Overview of the SLM Re 4/4
Discover the Re 4/4 electric locomotive, a powerful and versatile engine with a rich history.
Built by SLM and BBC between 1964 and 1983, this robust locomotive boasts impressive specifications designed for demanding railway operations.
Its 1435 mm gauge and Bo'Bo' wheel arrangement ensure excellent stability and performance on standard gauge tracks.
With a top speed of 140 km/h, the Re 4/4 is engineered for efficient and timely transportation.
Its substantial weight of 80 tonnes, coupled with a formidable tractive effort of 314 kN, allows it to handle significant loads with ease.
The Re 4/4 operates on 15 kV AC 16.7 Hz electric systems, delivering a remarkable power output of 4980 kW.
Measuring 15.47 meters in length, 2.95 meters in width, and 4.5 meters in height, this electric locomotive is a testament to enduring engineering and operational excellence.
Learn more about this iconic Swiss electric locomotive.
SLM Re 4/4 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | SLM, BBC · 1964–1983 | |
| Top speed | 140 km/h87 mph | |
| Power output | 4,980 kW6,678 hp | |
| Tractive effort | 314 kN70,590 lbf | |
| Electric systems |
| |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| UIC axle arrangement | Bo'Bo' | |
| Length | 15.47 m50 ft 9 in | |
| Width | 2.95 m9 ft 8 in | |
| Height | 4.5 m14 ft 9 in | |
| Weight | 80 t176,370 lb |
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1959–1966 · 125 km/h

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Re 4/4 I
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1946–1951 · 125 km/h

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Re 620, Re 6/6
Electric locomotive
1975–1980 · 140 km/h
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