SAR Class 10E 10-029

In 1985 and 1986 the South African Railways placed fifty Class 10E heavy goods 3 kV DC electric locomotives with a Co-Co wheel arrangement in mainline service, numbered in the range from 10-001 to 10-050. The locomotive, which makes use of either regenerative or rheostatic braking as the situation demands, was designed by Toshiba of Japan and built by Union Carriage and Wagon in Nigel, Transvaal.
See also the Wikipedia article on the South African Class 10E.