BBC 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 BBC Ae 4/7

Explore the iconic Ae 4/7 electric locomotive, a testament to Swiss engineering excellence and a symbol of the Swiss Federal Railways.

Built between 1927 and 1934 by renowned manufacturers BBC, MFO, SAAS, and SLM, this powerful machine served the SBB with distinction for many years. Its robust construction and reliable performance made it a cornerstone of Swiss rail transport, contributing significantly to the nation's development.

The Ae 4/7 boasts a top speed of 100 km/h and a formidable power output of 2300 kW, making it well-suited for both freight and passenger services on the standard 1435 mm gauge network. Its operational lifespan was extended and modernized with a refurbishment in 1998, highlighting its enduring design and adaptability.

Discover the functional elegance and historical significance of the Ae 4/7, a true embodiment of Swiss innovation in electric traction and a cherished piece of railway heritage.

BBC 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