SAAS Ae 4/7

Built by BBC, MFO, SAAS, SLM

Top speed

100 km/h

62 mph

Power output

2,300 kW

3,084 hp

Length

16.76 m

55 ft 0 in

Track gauge

1,435 mm

Standard gauge

Years built

1927–1934

127 units

Overview of the SAAS Ae 4/7

Discover the iconic Ae 4/7 electric locomotive, a testament to Swiss engineering from 1927-1934.

Built by BBC, MFO, SAAS, and SLM, this powerful machine boasts a top speed of 100 km/h and an impressive 2300 kW output, ensuring reliable service on the Swiss Federal Railways network for decades.

With a standard gauge of 1435 mm and a length of 16.76 meters, the SBB Ae 4/7 is a significant piece of railway history. It operated on 15 kV AC 16.7 Hz electric systems, showcasing the advanced technology of its era.

Refurbished in 1998, the Ae 4/7 remains a visually striking and historically important locomotive, measuring 2.95 meters wide and 3.8 meters high.

SAAS Ae 4/7 technical specifications

	Value	Imperial / US
Built by	BBC, MFO, SAAS, SLM · 1927–1934127 units
Refurbished	1998
Top speed	100 km/h62 mph	62 mph
Power output	2,300 kW3,084 hp	3,084 hp
Electric systems	15 kV AC 16.7 Hz
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
Length	16.76 m55 ft 0 in	55 ft 0 in
Width	2.95 m9 ft 8 in	9 ft 8 in
Height	3.8 m12 ft 6 in	12 ft 6 in