This class was one of a group of four, altogether totalling 200 locomotives for mixed traffic use, ordered by the Orléans network during the electrification of the Paris - Vierzon line; they were put into service between 1924 and 1928. Later, some of these locomotives operated various services at the head of passenger trains, in push-pull mode, in the south-eastern suburbs of Paris. They were also used for freight trains, which were better suited to their technical characteristics. In the 1960s and 1970s, around twenty of them were modified to run as permanently coupled double units on the Maurienne line, then electrified on the third rail. The class was withdrawn between 1969 and 1980, except for seven locomotives destroyed in 1944 by Allied bombardments of the depots where they were stabled.
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