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British Rail Class 90

class of 50 electric locomotives

The British Rail Class 90 electric locomotives were built by BREL at Crewe from 1987-1990. Each locomotive weighs 84.5 tonnes and has a top speed of 110 mph (180 km/h). They operate from 25 kV AC overhead wires and produce 5,000 bhp (3,700 kW). The class is employed on both express passenger services and heavy freight trains.

British Rail Class 90
90017 at Norwich.JPG
British Rail Class 90/0, no. 90017 at Norwich
Type and origin
Power typeElectric
BuilderBREL Crewe Works
Build date1987–1990
Total produced50
 • WhyteBo-Bo
 • UICBo'Bo'
Gauge1,435 mm (4 ft 8 12 in) standard gauge
Loco weight84.5 tonnes (83.2 long tons; 93.1 short tons)
Electric system/s25 kV AC
MU workingTDM system
Train heatingElectric Train Heating
Loco brakeAir, Rheostatic
Train brakesAir
Performance figures
Top speed75–110 mph (121–177 km/h)
Railroad(s)British Rail
Axle load classRoute availability