British Rail Class EF1

class of 10 British Bo-Bo electric locomotives


The British Rail Class EF1 (Electric Freight 1) was a class of electrically powered locomotives used by British Rail in England. They were used during the pre-TOPS period. They were also classified as British Rail Class EB1 for a short period of time, although only a single locomotive was completely modified to EB1 condition.

British Rail Class EF1
Type and origin
Power typeElectric
BuilderUnited Kingdom North Eastern Railway
Build date1914-1919
Total produced10
Specifications
Configuration:
 • AARBo-Bo
Gauge1435 mm
Electric system/s1500V DC
Current pickup(s)Pantograph
Engine type4x275hp, Siemens
Performance figures
Power output820 kW (1100 hp)
Career
Railroad(s)North Eastern Railway
LNER
British Railways
ClassLNER & BR: EB1
Number in class10
NumberNER: 3-12
LNER: 6490-6499
BR: 26502-26511
RetiredApril 1964