Krauss E 77

Built by BMAG, Krauss, LHW

Top speed

65 km/h

40 mph

Power output

1,600 kW

2,146 hp

Weight

113 t

249,122 lb

Length

16.25 m

53 ft 4 in

Track gauge

1,435 mm

Standard gauge

Years built

1924–1926

56 units

Overview of the Krauss E 77

Explore the powerful E 77 electric locomotive, a significant piece of German railway history.

Built between 1924 and 1926 by renowned manufacturers like BMAG, Krauss, and LHW, this impressive machine served the Deutsche Reichsbahn and is now proudly displayed at the DB Museum.

With a robust build featuring a (1'B)(B1') UIC axle arrangement, the E 77 was designed for heavy-duty work. It operated on a 15 kV AC 16.7 Hz electric system and a standard 1435 mm gauge.

This electric locomotive boasts a substantial power output of 1600 kW and a tractive effort of 235 kN, allowing it to reach a top speed of 65 km/h. Weighing 113 tonnes and measuring 16.25 meters in length, the E 77 represents a remarkable feat of engineering from its era.

Krauss E 77 technical specifications

	Value	Imperial / US
Built by	BMAG, Krauss, LHW · 1924–192656 units
Top speed	65 km/h40 mph	40 mph
Power output	1,600 kW2,146 hp	2,146 hp
Tractive effort	235 kN52,830 lbf	52,830 lbf
Electric systems	15 kV AC 16.7 Hz
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	(1'B)(B1')
Length	16.25 m53 ft 4 in	53 ft 4 in
Weight	113 t249,122 lb	249,122 lb