The system appeared to be using the radar for the S-350, which is supposed to have improved anti-ballistic missile capabilities. Alas, it seems it is not good enough to intercept the ATACMS ballistic missiles that have been provided to Ukraine by the United States.

1x 96L6-TsP radar 3x TELs 1x likely 55K6E command post

ATACMS fragments can be seen in the videos and a photo.

Video of the S-400 system after it was hit.