The 3 kV DC Class 6E1, Series 7 electric locomotive was designed and built for the South African Railways (SAR) by Union Carriage & Wagon (UCW) in Nigel, Transvaal.
The electrical equipment was supplied by the General Electric Company (GEC).

The 150 units were delivered between 1977 and 1979, numbered in the range from E1746 to E1895.
Like Series 6, the Series 7 units were equipped with AEI-283AY traction motors.
UCW did not allocate builder’s or works numbers to the locomotives it built for the SAR and used the SAR unit numbers for their record keeping.
The 3 kV DC Class 6E1, Series 7 electric locomotive was designed and built for the South African Railways (SAR) by Union Carriage & Wagon (UCW) in Nigel, Transvaal. The electrical equipment was supplied by the General Electric Company (GEC).
The 150 units were delivered between 1977 and 1979, numbered in the range from E1746 to E1895. Like Series 6, the Series 7 units were equipped with AEI-283AY traction motors. UCW did not allocate builder’s or works numbers to the locomotives it built for the SAR and used the SAR unit numbers for their record keeping.
South African Class 6E1, Series 7