Formations
The original formations of these units are set out in the table below:
| Unit Numbers | DMBT | DTC |
|---|---|---|
| 2601–2646 | 10719 to 10764 | 12186 to 12231 |
| 2647–2699 | 10765 to 10817 | 12801 to 12853 |
| 2700 | 12664 (ex 4-SUB 4590) | 12855 (new build) |
Read more about this topic: British Rail Class 402