SLM Deh 4/4 II

Built by BBC, SLM

Top speed

60 km/h

37 mph

Power output

1,032 kW

1,384 hp

Weight

49.5 t

109,129 lb

Length

15.5 m

50 ft 10 in

Track gauge

1,000 mm

Metre gauge

Years built

1979–1984

6 units

Overview of the SLM Deh 4/4 II

Explore the Deh 4/4 II electric locomotive, an iconic model of Swiss railways.

Built by BBC and SLM between 1979 and 1984, this Bo'zz Bo'zz type locomotive was renowned for its robustness and efficiency.

With a power output of 1032 kW and a tractive effort of 118 kN, the Deh 4/4 II is perfectly suited for mountain lines. Its top speed of 60 km/h and 1000 mm gauge make it a valuable asset for the Furka Oberalp Bahn and Matterhorn-Gotthard-Bahn networks.

Weighing 49.5 tons and measuring 15.5 meters in length, it embodies Swiss reliability in railway transport.

SLM Deh 4/4 II technical specifications

	Value	Imperial / US
Built by	BBC, SLM · 1979–19846 units
Top speed	60 km/h37 mph	37 mph
Power output	1,032 kW1,384 hp	1,384 hp
Tractive effort	118 kN26,527 lbf	26,527 lbf
Electric systems	15 kV AC 16.7 Hz
Track gauge	1,000 mmMetre gauge3 ft 3⅜ in	3 ft 3⅜ in
UIC axle arrangement	Bo'zz Bo'zz
Length	15.5 m50 ft 10 in	50 ft 10 in
Width	2.68 m8 ft 10 in	8 ft 10 in
Height	3.88 m12 ft 9 in	12 ft 9 in
Weight	49.5 t109,129 lb	109,129 lb