CC 6051 - CC 20001 et CC 25000

The CC 6051, CC 20001 and CC 25000 locomotives are emblematic machines that have marked various stages in SNCF's technological evolution.

The CC 6051, a prototype from the 1940s, was a diesel-electric locomotive designed to experiment with this technology in France, but remained unique due to its complexity.

The CC 20001, developed in the 1950s, was a single-phase 50 Hz AC prototype designed to test electrification over long distances. Its role was crucial in the adoption of 25 kV 50 Hz as an international standard.

Finally, the CC 25000, commissioned in the 1960s, was a series of multi-current electric locomotives capable of operating on 1,500 volt DC and 25 kV AC networks, a major asset for mainline flexibility. These locomotives bear witness to SNCF's efforts to innovate and modernize its fleet, in preparation for the arrival of high-speed trains.