© trainspo.comSLM SOB ABe 4/4
Built by SLM, BBC, MFO, SAAS
Overview of the SLM SOB ABe 4/4
Discover the SOB ABe 4/4, a historic electric railcar that played a vital role in Swiss regional transport.
Built between 1939 and 1940 by leading manufacturers SLM, BBC, MFO, and SAAS, this robust railcar is renowned for its reliability and enduring performance.
Boasting a top speed of 80 km/h and a power output of 735 kW, the SOB ABe 4/4 was instrumental in connecting communities.
Its standard gauge of 1435 mm and Bo'Bo' wheel arrangement ensure a smooth and stable ride on the tracks.
This versatile railcar served with both Regionalverkehr Mittelland and Schweizerische Südostbahn AG (SOB), showcasing its adaptability.
Operating on 15 kV AC 16.7 Hz, this 19.6-meter-long, 47-tonne electric railcar is a testament to early 20th-century engineering excellence.
SLM SOB ABe 4/4 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | SLM, BBC, MFO, SAAS · 1939–19408 units | |
| Top speed | 80 km/h50 mph | |
| Power output | 735 kW986 hp | |
| Electric systems |
| |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| UIC axle arrangement | Bo'Bo' | |
| Length | 19.6 m64 ft 4 in | |
| Weight | 47 t103,617 lb |
Operators of the SLM SOB ABe 4/4
Railway companies that have operated the SOB ABe 4/4, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Regionalverkehr Mittelland | RM ABe 526 | Switzerland |
| Schweizerische Südostbahn AG | SOB ABe 4/4 | Switzerland |
SLM SOB ABe 4/4 photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.














