The 189 series was introduced in 1975 as a DC limited express train that supports cooperative operation with the EF63 type at Usui Pass.
Since its appearance, it has been mainly used as a limited express train "Asama" connecting Ueno and Nagano, but the train was abolished due to the opening of the Nagano Shinkansen on October 1, 1997, and some vehicles are on the Chuo Main Line. It was diverted to the limited express train "Azusa".
At the time of diversion, in addition to changing the paint, the Kuha 189-0 / 500 type was changed direction with the relocation of jumper plugs for the purpose of aligning the connection position of the 183 series of "Azusa" and the upgraded car.
- Compatible with Interior Lighting Kit Tomix 0733