B&W U11B

Built by B&W

Top speed

110 km/h

68 mph

Power output

883 kW

1,184 hp

Weight

74 t

163,142 lb

Track gauge

1,668 mm

Iberian gauge

Years built

1968–1974

20 units

Axle arrangement

Bo'Bo'

Overview of the B&W U11B

Discover the robust U11B diesel locomotive, a powerful workhorse designed for heavy-duty operations.

This impressive locomotive boasts a Bo'Bo' wheel arrangement and was built by B&W between 1968 and 1974. With a top speed of 110 km/h and a substantial power output of 883 kW, it's engineered for efficiency and reliability on the tracks.

The U11B, also known as the RENFE 1500 series, operates on a 1668 mm gauge and weighs in at 74 tonnes. Its versatile capabilities have seen it serve with ArcelorMittal in Luxembourg.

Explore the history and specifications of this notable diesel locomotive, a testament to enduring railway engineering.

B&W U11B technical specifications

	Value	Imperial / US
Series	RENFE 1500
Built by	B&W · 1968–197420 units
Top speed	110 km/h68 mph	68 mph
Power output	883 kW1,184 hp	1,184 hp
Track gauge	1,668 mmIberian gauge5 ft 5⅝ in	5 ft 5⅝ in
UIC axle arrangement	Bo'Bo'
Weight	74 t163,142 lb	163,142 lb