SAAS SBB De 4/4

Built by SWS, SIG, SAAS, MFO

Top speed

85 km/h

53 mph

Power output

800 kW

1,073 hp

Weight

59 t

130,073 lb

Length

15.2 m

49 ft 10 in

Track gauge

1,435 mm

Standard gauge

Years built

1928

Overview of the SAAS SBB De 4/4

Discover the SBB De 4/4, a classic electric locomotive with a rich history in Swiss rail transport.

Built by SWS, SIG, SAAS, and MFO in 1928, this robust machine served the Swiss Federal Railways faithfully.

It underwent significant refurbishment between 1966 and 1971, ensuring its continued operation for many years.

With a top speed of 85 km/h and a powerful 800 kW output, the SBB De 4/4 was a reliable workhorse for freight and passenger services on the 1435 mm standard gauge network.

Its Bo'Bo' wheel arrangement and a length of 15.2 meters, weighing 59 tons, made it a versatile and enduring presence on the tracks.

Explore the engineering and legacy of this iconic Swiss locomotive.

SAAS SBB De 4/4 technical specifications

	Value	Imperial / US
Series	SBB De 4/4
Built by	SWS, SIG, SAAS, MFO · 1928
Refurbished	1966 - 1971
Top speed	85 km/h53 mph	53 mph
Power output	800 kW1,073 hp	1,073 hp
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	Bo'Bo'
Length	15.2 m49 ft 10 in	49 ft 10 in
Weight	59 t130,073 lb	130,073 lb