JNR received 89 sets of Class EF66 Electric Locomotive from 1966 to 1991.
When it launched into JNR, it was the most powerful high-performance DC locomotive for hauling high-speed express freight trains and later all-sleeping-car limited expresses between Tokyo and Shimonoseki.
The maximum speed is 110 km/ hour. The serial number of this locomotive is EF66 11. It was built in 1968.