© trainspo.comSIG WB BDe 4/4
Built by BBC, Schindler, SIG, SWP
Overview of the SIG WB BDe 4/4
Discover the WB BDe 4/4, an electric multiple unit (EMU) with a rich history on the Waldenburgerbahn in Switzerland. This robust locomotive, built between 1986 and 1993 by renowned manufacturers like BBC, Schindler, SIG, and SWP, is a testament to Swiss engineering excellence.
Designed for narrow-gauge operations, the WB BDe 4/4 features a 750 mm gauge and boasts a top speed of 75 km/h. Its B'B' UIC axle arrangement, coupled with a car length of 18.2 meters and a weight of 28 tons, makes it a capable performer on its operational routes.
The locomotive operates on 1.5 kV DC electric systems, ensuring efficient and environmentally friendly transport. This model is an iconic part of the Waldenburgerbahn's fleet, contributing to its reliable service and operational success.
SIG WB BDe 4/4 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | BBC, Schindler, SIG, SWP · 1986–1993 | |
| Top speed | 75 km/h47 mph | |
| Electric systems |
| |
| Track gauge | 750 mmNarrow gauge2 ft 5½ in | |
| UIC axle arrangement | B'B' | |
| Car length | 18.2 m59 ft 9 in | |
| Weight | 28 t61,729 lb |
Operators of the SIG WB BDe 4/4
Railway companies that have operated the WB BDe 4/4, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Waldenburgerbahn | WB BDe 4/4 | Switzerland |
SIG WB BDe 4/4 photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.
More electric multiple units from SIG

SIG
FLP Be 4/12
Electric multiple unit
1979 · 60 km/h

SIG
Be 4/8 25
Electric multiple unit
1993 · 80 km/h

SIG
RBS ABe 4/8
Electric multiple unit
1992–1993 · 90 km/h

SIG
RBS ABe 4/12
Electric multiple unit
1992–1993 · 90 km/h

SIG
RBS Be 4/12 II
Electric multiple unit
1992–1993 · 90 km/h

SIG
BAM Be 4/4
Electric multiple unit
75 km/h · 780 kW

SIG
TPF Be 4/4 (151-152)
Electric multiple unit
1977 · 80 km/h

SIG
BLS RBDe 566 II
Electric multiple unit
1984–1985 · 125 km/h
Similar electric multiple units from other manufacturers

ABB
IM LRV
Electric multiple unit
80 km/h

Alstom
MP 89 CA
Electric multiple unit
80 km/h

Hyundai Rotem
AM Hyundai Rotem
Electric multiple unit
80 km/h

Siemens
Bursaray B80
Electric multiple unit
70 km/h

CAF
5000.2
Electric multiple unit
1982–1986 · 70 km/h

Mitsubishi
YNT 1000
Electric multiple unit
1988–1989 · 60 km/h

Jeumont-Schneider
SNCF Z 4100
Electric multiple unit
90 km/h · 560 kW

Mitsubishi
Yurikamome 7000
Electric multiple unit
60 km/h