© trainspo.comSLM SBB BDe 4/4
Built by SLM, SWP, BBC, MFO, SAAS
Overview of the SLM SBB BDe 4/4
Explore the SBB BDe 4/4, a versatile electric railcar with a rich history in Swiss railways.
Built between 1952 and 1955 by SLM, SWP, BBC, MFO, and SAAS, this locomotive served with distinction for the Oensingen-Balsthal-Bahn and the Swiss Federal Railways (SBB).
Boasting a power output of 1176 kW and a top speed of 110 km/h, the SBB BDe 4/4 offers efficient transport with a capacity for 40 passengers.
Its standard gauge (1435 mm) and Bo'Bo' axle configuration make it a reliable and capable machine for various rail operations.
Today, some of these historic railcars are preserved by SBB Historic, standing as a testament to Swiss railway engineering heritage.
SLM SBB BDe 4/4 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | SLM, SWP, BBC, MFO, SAAS · 1952–195531 units | |
| Top speed | 110 km/h68 mph | |
| Power output | 1,176 kW1,577 hp | |
| Electric systems |
| |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| UIC axle arrangement | Bo'Bo' | |
| Capacity | 40 seats | |
| Length | 22.7 m74 ft 6 in | |
| Weight | 57 t125,663 lb |
Operators of the SLM SBB BDe 4/4
Railway companies that have operated the SBB BDe 4/4, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Oensingen-Balsthal-Bahn | OeBB BDe 4/4 | Switzerland |
| SBB Historic | SBB Historic BDe 4/4 | Switzerland |
| Swiss Federal Railways | SBB BDe 4/4 | Switzerland |
SLM SBB BDe 4/4 photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.















